All Things Mk5 > Performance Modifications

Need a bit louder

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PhilNUK:
I had a non resonated milltek cat back exhaust fitted to my ed 30 last week and was curious how it sounded to a pedestrian...  I wasn't after a loud noise..  Just a nice rumbley sound and a scream when foot put down..  I got a mate to drive it up the road for me.  He didn't put foot down but just pulled away and accelerated a bit.  I couldn't tell much difference between it now and when it was standard to be honest.  I can't imagine a resonated one being any different at all to standard if this is the tiny difference with the non resonated one

If I get an aftermarket downpipe would that help? Could I keep the cat and just get a downpipe or will the downpipe mean I need to remove the cat?

hlcst:
Have you considered pre cat delete?

PhilNUK:
Have heard it mentioned. 
What would it involve? I was looking at downpipes.  Then induction kits. 

Just disappointed how quiet the cat back non resonated is on its own to be honest.  Also worry that I might go too far the other way and go too loud.

At what point does it become an MOT fail too? I don't want to need to worry about that.  If I remove the cat is it a fail?

hlcst:
If you search google you will find all you need to know, there's even a few videos around so you can hear the sound difference.
Have a look at this http://www.mk5golfgti.co.uk/forum/index.php?topic=50283.0 basically it's just removing the cat from the car and bashing out the pre cat material

If you decat then you will have an mot failure that's why lots of people choose a high flow sport cat

Dave J:
Should have got your mate to put his foot down! I found it's louder under load, and near standard when not...

This is the first time I've heard of a non res being too quiet - I've heard of people changing out the rear system for a resonated system and being disappointed. For sure the car is very quiet as standard - I thought the non-res system gave a bit of voice to mine and made the exhaust note a bit deeper without being intrusive.
I think when I fit my Miltek DP I will change the rear to resonated as otherwise it will be a bit too loud to be discrete.

Still, it varies person to person. I saw a Revo demonstrator ED30 at Donington which must had had a full system as it bellowed in a very deep way went it went past the pits, but in comparison mine is a bit deeper sounding than standard although a bit muted without a DP.

As said before - some people have knocked out the pre-cat material to make a bit more sound without changing the downpipe.

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