MK5 Golf GTI
All Things Mk5 => Mk5 General Area => Topic started by: alexmccabe on March 13, 2013, 11:34:54 am
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So, I am unfortunately completely ignorant when it comes to this. It's quite annoying. At some point in the future I would like to replace the exhaust to a Milltek one, ideally before a remap.
The question I have is, do I just buy the cat-back or do I have to get the downpipe too? I have no idea what either things do (I'm sure a little Googling will help, gonna do that in a minute). Also what is the difference between resonated and non-resonated?
I tried using the search function on here, but I find it to be horrible at actually finding what you want. Heh. Help is appreciated!
Thank you.
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It's up to you. The cat back is at says on the tin, just the system from the cat. Half a system if you will. A downpipe replacement is the whole system, the downpipe comes from the exhaust manifold. More benefit is found in the latter, obviously.
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If you do go for cat back only and not a full TBE, then I would defo get a pre-cat delete.
It's worth noting that a TBE wouldn't have a pre-cat. It would also be the larger 3inch downpipe, and your choice of a 100/200 cell cat (instead of standard 800 cell) or de-cat.
So it's trade off time, and really down to your funds and what stage you plan on doing... if just Stage 1 then a pre-cat delete and cat back system is fine. Stage 2 would probably run on the same pre-cat delete standard exhaust, but you'd be better off going for the TBE, from Stage 2 upwards. I wouldn't run a Stage 2 without at least the pre-cat removed...
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as above - Downpipe is from manifold / turbo. Replace this has the the best performance gains & sounds - especially if couple with a sports cat (100 or 200 cel)
but it can be very expensive. It all depends on what your looking for and your budget.
Option 1 - Remove rear muffler - cheap and sounds awesome
Options 2 - Cat-back exhaust - mid priced - you can have it resonated or non -resonated - non - resonated been louder
Option 3 - Full Turbo back exhaust - expensive - but will give you more free flow air - hence more BHP gains when mapped
Hope this helps.
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Thanks guys, I am not exactly the richest person. I just want a little speed gain and nicer sound really, so cat-back would suffice?
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Thanks guys, I am not exactly the richest person. I just want a little speed gain and nicer sound really, so cat-back would suffice?
Yes. Cat back for noise, Turbo back for power. You will need a reducer to fit a Milltek cat back with standard downpipe & cat.
May be worth trying one of the other cheaper brands - dont automatically think Milltek is the only supplier of aftermarket exhausts for the MK5. . .
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If your budget is tight then just remove your suitcase back box ( the last muffler under the boot) and get a tail pipe fitted.
Blueflame do one - or review on YouTube - "MK5 Suitcase delete"
Cat back exhaust wont really give you any more power as such thought mate.
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Thanks guys, I am not exactly the richest person. I just want a little speed gain and nicer sound really, so cat-back would suffice?
Yes. Cat back for noise, Turbo back for power. You will need a reducer to fit a Milltek cat back with standard downpipe & cat.
May be worth trying one of the other cheaper brands - dont automatically think Milltek is the only supplier of aftermarket exhausts for the MK5. . .
Right... nothing is easy is it. Haha. I know other brands exist, I can afford some of the nicer things though. :wink: just probably not the whole thing.
Cat back exhaust wont really give you any more power as such thought mate.
Told you I was ignorant, didn't I. Haha.
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I wouldn't bother with a Cat back if power is your only incentive... do a pre-cat delete, custom map it, then save your money to stop it (NQSBBK) :happy2:
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Thanks guys, I am not exactly the richest person. I just want a little speed gain and nicer sound really, so cat-back would suffice?
Yes. Cat back for noise, Turbo back for power. You will need a reducer to fit a Milltek cat back with standard downpipe & cat.
May be worth trying one of the other cheaper brands - dont automatically think Milltek is the only supplier of aftermarket exhausts for the MK5. . .
Does the milltek not come with the reducer to fit onto standard exhaust system
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Check out the group buy, Blueflame pipes (rear muffler delete)