MK5 Golf GTI
All Things Mk5 => Modifications & Technical Area => Performance Modifications => Topic started by: Trekmeister on February 01, 2012, 09:23:19 am
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I have a MK5 Golf GT 140 and have purchased a GTI rear valance but need a rear silencer now, what have people used, the GTI back box or GT 170 back box? VW are quoting £260 for rear GT 170 back box. Any stainless steel alternatives or cheaper OE parts that people are aware of?
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Once you get your GTI rear valance colour-coded to your car, fit it then drive to your local exhaust shop and they should be able to replace your diesel backbox with a straight thru pipe for about £150. Have a look at the link below. It should show my build thread, page 3. Halfway down I've put a few pictures of the pipe I got made up.
It doesn't affect your car at all with regards to lack of back-pressure of the exhaust and will actually make the turbo spool up a little quicker. There isn't a massive change in noise/volume to this mod, but you may hear the turbo spooling down now and then if you have the window down. A noise I quite like. :drool:
Hope that helps you. :happy2:
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I bought a genuine backbox on ebay (£50-100 - mine was £80 including delivery) and sent the pipe dimensions to an exhaust place on eBay who made a sleeve reducer for £11 delivered.
Got the grinder out and fitted it myself, easy.
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I was looking at doing this to my gt tdi 140 I was looking at just getting a standard golf gti exhaust and making a sleeve to join it up
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I was looking at doing this to my gt tdi 140 I was looking at just getting a standard golf gti exhaust and making a sleeve to join it up
Thats what quite a few have done
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