MK5 Golf GTI
All Things Mk5 => Mk5 General Area => Topic started by: Janner_Sy on May 14, 2010, 07:41:23 pm
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how much louder would you say a "decat mated to the standard cat back" is over say the stock exhaust system and how loud would it be in comparison to a full TBE.
im going to fiddle with my car again, cos is rubbish now and feels numb and crap when you put your foot down.
I used to have a 3" pipewerx DP fitted which sounded really meaty and throaty. I then bolted a piper non res cat back to it, but if anything id say it was then too loud, and my driving slowed down as result of how obvious it was if you stuck your foot down.
So im after some stage 2 perfomrance again but not sure if i should fit a decat for the extra performance or just stick to a downpipe??
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decat gives a small noise increase mate, but nothing compared to a full TBE, if you are after a cheap mod that will give you a little power and noise go for it :happy2:
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so its only a small increase. thats good news.
what about remaps. Will the remap need adjusting to utilise the decat. I dont want to fit it and find out that the decat causes loss of power.
BTW I still have all the stage 2 an stage 2+ maps on my STS handset so i can go sraight to stage 2 no issues.
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so its only a small increase. thats good news.
what about remaps. Will the remap need adjusting to utilise the decat. I dont want to fit it and find out that the decat causes loss of power.
BTW I still have all the stage 2 an stage 2+ maps on my STS handset so i can go sraight to stage 2 no issues.
I did back to back dyno's of before and after I had the decat done. The car made 4.5bhp and 4.5lbft extra with the decat and NOTHING else altered. :smiley:
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so its only a small increase. thats good news.
what about remaps. Will the remap need adjusting to utilise the decat. I dont want to fit it and find out that the decat causes loss of power.
BTW I still have all the stage 2 an stage 2+ maps on my STS handset so i can go sraight to stage 2 no issues.
I did back to back dyno's of before and after I had the decat done. The car made 4.5bhp and 4.5lbft extra with the decat and NOTHING else altered. :smiley:
John ,
you didnt need to alter ANY revo gubbins?
Was it exhausts Uk behind centertainment? How much did it cost? :innocent:
Cheers
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Decat will help spool up too....
Depends on your software if it will throw a cell of fault code though.
The yanks use a 90 degree wayne angle connector on the lambda sensor to keep it away from the flow of gasses. Loads have done this on the mkv forum and seems to work with stock software as well
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Decat will help spool up too....
Depends on your software if it will throw a cell of fault code though.
The yanks use a 90 degree wayne angle connector on the lambda sensor to keep it away from the flow of gasses. Loads have done this on the mkv forum and seems to work with stock software as well
I read stage 2+ software stops the light pinging up :)
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The standard downpipe is really restrictive.
After fitting the TBE the gains were great.
After removing it the power loss is really really noticeable !!!
You could just remove the first CAT
This is the major restriction in the standard exhaust as the heat and gasses hit a brick wall exiting the turbo.
Its made from brittle ceramic and can be removed with a little persuasion :smiley:
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fww123%2Fjon-tfsi%2FIMGP2722.jpg&hash=eaf2c4d56d1bf8c8f2f30d0d4ee53515da2d070d)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fww123%2Fjon-tfsi%2FIMGP2718.jpg&hash=89f81e60da40afa475352a99da084969aba75f62)
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so its only a small increase. thats good news.
what about remaps. Will the remap need adjusting to utilise the decat. I dont want to fit it and find out that the decat causes loss of power.BTW I still have all the stage 2 an stage 2+ maps on my STS handset so i can go sraight to stage 2 no issues.
did back to back dyno's of before and after I had the decat done. The car made 4.5bhp and 4.5lbft extra with the decat and NOTHING else altered. :smiley:
thats good to know. might order one in a second then. looking at the options,
i could order a 2.5" piper Decat downpipe
or a 3" inch decat blueflame.
Bearing in mind this is only a k03, what do you think
I read stage 2+ software stops the light pinging up :)
Mike your not allowed any input now :P. Its your fault i want to re mod the car :laugh:
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The standard downpipe is really restrictive.
After fitting the TBE the gains were great.
After removing it the power loss is really really noticeable !!!
You could just remove the first CAT
This is the major restriction in the standard exhaust as the heat and gasses hit a brick wall exiting the turbo.
Its made from brittle ceramic and can be removed with a little persuasion :smiley:
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fww123%2Fjon-tfsi%2FIMGP2722.jpg&hash=eaf2c4d56d1bf8c8f2f30d0d4ee53515da2d070d)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fww123%2Fjon-tfsi%2FIMGP2718.jpg&hash=89f81e60da40afa475352a99da084969aba75f62)
Looks familiar lol..
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fo304%2Fjonnnny28%2FIMG_0324.jpg&hash=b13f2aaae5eec9322f413e60aec2df25c8835ba5)
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LOL must be a Gbro thing...
My cat looks much cleaner than yours :P
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LOL must be a Gbro thing...
My cat looks much cleaner than yours :P
Yeah, G'town massiveeee!.. :grin:
I tried getting it out doing this but failed pretty bad.. Hence the 'singed' look.. :laugh:
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fi278.photobucket.com%2Falbums%2Fkk84%2Fdavidsonley1%2Fth_Cat.jpg&hash=44d017218c8053aece3ca560444018980feaed08) (http://s278.photobucket.com/albums/kk84/davidsonley1/?action=view¤t=Cat.flv)
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The standard downpipe is really restrictive.
After fitting the TBE the gains were great.
After removing it the power loss is really really noticeable !!!
You could just remove the first CAT
This is the major restriction in the standard exhaust as the heat and gasses hit a brick wall exiting the turbo.
Its made from brittle ceramic and can be removed with a little persuasion :smiley:
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fww123%2Fjon-tfsi%2FIMGP2722.jpg&hash=eaf2c4d56d1bf8c8f2f30d0d4ee53515da2d070d)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fww123%2Fjon-tfsi%2FIMGP2718.jpg&hash=89f81e60da40afa475352a99da084969aba75f62)
MOT friendly?? :party:
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It passed :booty:
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Lol thats brutal Jonny!!!
A shameless way to treat a new car. :signLOL:
Our resident welder removed the second cat with a little more FINESSE
He cut the cat open with a slitting disc, i removed the guts and he tig welded it back together so well it looks like it was done by machine.....
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fww123%2Fjon-tfsi%2FIMGP2719.jpg&hash=45c6fd6f74d64c4c0c787d9328e55d9800478b4c)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fww123%2Fjon-tfsi%2FIMGP2720.jpg&hash=ff189cab8cd850949543e12768c9bd097b7e5b5c)
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It passed :booty:
Was that a std exhaust, i mean does the miltek tbe still have the ceramic precat???
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Lol thats brutal Jonny!!!
A shameless way to treat a new car. :signLOL:
Naaaah.. :happy2: Listen up, im leaving my house in about 10 mins.. It should be loud enough for 'most' of town to hear it now haha..
Anyways, back on topic.. Going from a Sports cat to de-cat will help power and torque as Hurdy said.. I have found in almost all cases going de-cat reduces noise when cruising, but makes the car louder on throttle.. Usually, less of a boom too with de-cat.. More of a raspy note..
Hope that helps..
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A Decat to Std Catback would sound great IMO
Should also provide the same performance as any aftermarket TBE on a K03 motor.
The gasses cool as they travel through the system and effectively shrink, not requiring such a large diameter to travel at the same speed. The Std cat back is 2.25" internal diameter on a GTI (prob same on VRS) and should not be restrictive.
It might be worth getting your MOT done just before you have the decat installed :wink:
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what would you guys reccommend decat wise for my k03
a 2.5" piper Decat downpipe
or a 3"Blueflame decat downpipe
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what would you guys reccommend decat wise for my k03
a 2.5" piper Decat downpipe
or a 3"Blueflame decat downpipe
I think 3" downpipe.. As it has been said, when the EGT's are at there highest you need the larger diameter..
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cool, thats only £225 as well. :jumpmove:
I now need to look into a good but quiet(ish) intake. Last time i had the full non res TBE, and ITG and the missus did nothing but complain.
I want the same performance as before with less shouting about it. which is always handy as in medway you cant drive a mile without seeing a cop car,
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cool, thats only £225 as well. :jumpmove:
I now need to look into a good but quiet(ish) intake. Last time i had the full non res TBE, and ITG and the missus did nothing but complain.
I want the same performance as before with less shouting about it. which is always handy as in medway you cant drive a mile without seeing a cop car,
very true about the Chatham taxis.
Booked in 8am next Saturday for bolt in/out decat section :)
what got you back into tuning the vrs si? ;) :P
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I drove some red car with a flat spot, and then thought shouldnt be to hard to beat it :P
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I drove some red car with a flat spot, and then thought shouldnt be to hard to beat it :P
Funny guy :laugh: Was it very fast?
You know if the Miltek has the Ceramic precat? Gettin De-cat done saturday morning :party:
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I drove some red car with a flat spot, and then thought shouldnt be to hard to beat it :P
Funny guy :laugh: Was it very fast?
Not really, its definately no match or the vRS :P
You know if the Miltek has the Ceramic precat? Gettin De-cat done saturday morning :party:
no its just the bottom cat on the miltek. have you bought a new decat pipe or are you butchering the miltek like hurdy has done so you can do the swap at MO time
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I drove some red car with a flat spot, and then thought shouldnt be to hard to beat it :P
Funny guy :laugh: Was it very fast?
Not really, its definately no match or the vRS :P
You know if the Miltek has the Ceramic precat? Gettin De-cat done saturday morning :party:
no its just the bottom cat on the miltek. have you bought a new decat pipe or are you butchering the miltek like hurdy has done so you can do the swap at MO time
Butchering the Miltek with a flanged stainless section and flanging the Cat.
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make sure you get yourself a few gaskets for when you swap over.
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make sure you get yourself a few gaskets for when you swap over.
:happy2:
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and one of those WOT boxes for some flame action in combo with the decat :jumping:
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Decat bright and early in the morning! Hope I feel the benefit!! :smiley:
any last words of advice? :smiley:
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Decat bright and early in the morning! Hope I feel the benefit!! :smiley:
any last words of advice? :smiley:
Enjoy :wink:
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Decat bright and early in the morning! Hope I feel the benefit!! :smiley:
any last words of advice? :smiley:
Enjoy :wink:
If theres no noticeable difference ill be patrolling snake pass to find you Mr Hurditch :fighting: :P
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Decat bright and early in the morning! Hope I feel the benefit!! :smiley:
any last words of advice? :smiley:
Enjoy :wink:
If theres no noticeable difference ill be patrolling snake pass to find you Mr Hurditch :fighting: :P
You'll not catch me though....I haz DSG, Quaife and R1R's :P
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Decat bright and early in the morning! Hope I feel the benefit!! :smiley:
any last words of advice? :smiley:
Enjoy :wink:
If theres no noticeable difference ill be patrolling snake pass to find you Mr Hurditch :fighting: :P
You'll not catch me though....I haz DSG, Quaife and R1R's :P
:sad1: True, having some transmission work on friday but the diff has to wait till after the wedding. The dead vreds
just arent pulling me off the roundabouts quick enough!
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Decat bright and early in the morning! Hope I feel the benefit!! :smiley:
any last words of advice? :smiley:
Enjoy :wink:
If theres no noticeable difference ill be patrolling snake pass to find you Mr Hurditch :fighting: :P
You'll not catch me though....I haz DSG, Quaife and R1R's :P
:sad1: True, having some transmission work on friday but the diff has to wait till after the wedding. The dead vreds
just arent pulling me off the roundabouts quick enough!
New decent tyres FTW Mike - R1R's or PS3's are looking like the best grip options :smiley:
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when did you get the vreds fitted. you had contact sports fitted the other day????
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when did you get the vreds fitted. you had contact sports fitted the other day????
My mistake :ashamed: :ashamed: Theyre poo anyway
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Before....
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fo56%2F2968Gsi_Mike%2Fbc4b4bbc.jpg&hash=5c58edac088e40858661ca7bcea26adaeb048d41)
the sound of the grinder is hurting my ears :scared: poor milly!
Two bolt flange on the turbo side of the cat and using the existing slot/sleave
connection to the mid section.
Cutting away the little triangle bracket on the underside of the cat toallow swapping.
Watch this space ;)
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:happy2:
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:happy2:
i got mike to ask them if they could decat the standard downpipe, and they can do it for the same price. £95 for a switchable decat exhaust. Sound like a good mod to me
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initial reports very happy :)
feels like a great improvement for £95 £110. It cost more than quoted, I can only assume because of having to angle grind off a bit of metal off.
Feels to pick up quicker and is louder on boost. Didn't manage to get a pic will see if I can get one after doing the shopping :)
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Gald you like it mike i paid 85 for mine, sounds alot louder on boost, great mod for the money
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Not sure what caused it but after a short journey, noticed engine management light was lit :sad:
Turned engine off, did what i think is aprs fault code erase on the cruise stalk, turned engine over and it was gone.
Ill keep an eye on it. Any one else had it? I thought stage2+ code got rid of EML lighting? :confused:
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when did you get the vreds fitted. you had contact sports fitted the other day????
My mistake :ashamed: :ashamed: Theyre poo anyway
What are, Conti Sports or Vreds?
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What are, Conti Sports or Vreds?
Tyres...
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What are, Conti Sports or Vreds?
Tyres...
What are poo - the Contis or the Vreds.
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Not sure what caused it but after a short journey, noticed engine management light was lit :sad:
Turned engine off, did what i think is aprs fault code erase on the cruise stalk, turned engine over and it was gone.
Ill keep an eye on it. Any one else had it? I thought stage2+ code got rid of EML lighting? :confused:
Iv had mine in for a couple weeks no engine light has been on yet
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The engine light can come on when the car is idling or on very light throttle. Mine comes on probably once a month or so. It recognises the fault as the engine emission fault (beyond threshold)
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The engine light can come on when the car is idling or on very light throttle. Mine comes on probably once a month or so. It recognises the fault as the engine emission fault (beyond threshold)
3times in 2days lol. Will it tell the car to pull back boost or timing etc?
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The engine light can come on when the car is idling or on very light throttle. Mine comes on probably once a month or so. It recognises the fault as the engine emission fault (beyond threshold)
3times in 2days lol. Will it tell the car to pull back boost or timing etc?
Makes no difference to performance. I prefer to get rid of the light and read the error code for peace of mind though :happy2:
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Only takes 2 mins to remove the CEL for the second lambda from the ECU...
Kev
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Only takes 2 mins to remove the CEL for the second lambda from the ECU...
Kev
Aah good news. :smiley:
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Quick iPhone snap
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2F2968Gsi_Mike%2Fparts_pics%2FIMG_0031.jpg&hash=75d0526468f386ca752f494a3a5667c2e04d7e5c)
boy its quite loud! :laugh:
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(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2F2968Gsi_Mike%2Fparts_pics%2FIMG_0032.jpg&hash=40511cba8555c6e41b1561ffedf53c93a96a02ea)
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where are the flanges??
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where are the flanges??
The end towards the rear of the car doesnt have / need flanges.
It flanged just above the exhaust bracket near where the flexi is. Ill get a better pic soon as I get chance.
Infact will prob be on the ramps at statlers soon so will get a snap then. :happy2:
Sorry for the poor pics didnt have any light
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The engine light can come on when the car is idling or on very light throttle. Mine comes on probably once a month or so. It recognises the fault as the engine emission fault (beyond threshold)
3times in 2days lol. Will it tell the car to pull back boost or timing etc?
Makes no difference to performance. I prefer to get rid of the light and read the error code for peace of mind though :happy2:
Mine pings on all the time with a 3" dp and sports cat. Emissions are fine (tested last week). I tried the angle block (£20 from U.S.) mentioned earlier and it didn't make much difference. Need to get it mapped out :sad1: I think a lot of tuners map it out as default on 2+ maps but alas, not mine
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strange thing is though, i never had the light on when i used bluefin stage 2 and 2 + or shark stage 2 and 3.
got your email just mate. hadnt had time to reply. cheers pal :happy2:
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strange thing is though, i never had the light on when i used bluefin stage 2 and 2 + or shark stage 2 and 3.
got your email just mate. hadnt had time to reply. cheers pal :happy2:
What email mate :confused:
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not you nosey :grin: that was aimed at muckipup
btw we should be on for some action tomorrow afternoon mate. provided said parcel arrives in post tomorrow. should do though :happy2:
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(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fo56%2F2968Gsi_Mike%2F6a800ecc.jpg&hash=4d5c3f91c78c6b140bd5a6dfab7998a369f7d421)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fo56%2F2968Gsi_Mike%2F5bd866f6.jpg&hash=fd5ab50c524977fd0f9364adb3a6064bfce662ba)
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how come the Anit lift kit says TOP on the BOTTOM, is it on the wrong side
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:confused:
looks like when it's comes off vwRacings ramp in a min it's goin straight onto statlers ramp,
that's where it was fitted
eyes like a hawk mate, thanks for that
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thought i better mention it as it may end up losing you 0.5degree camber instead gaining you 0.5degree. :wink:
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It's right mate. The stickers are on top and bottom and the sticker on top said top left.
Think it's if you take the bushes out :happy2:
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good to know mate glad its ok :happy2: