MK5 Golf GTI

All Things Mk5 => Modifications & Technical Area => Performance Modifications => Topic started by: craig_t on June 21, 2011, 08:55:59 pm

Title: 3" downpipe
Post by: craig_t on June 21, 2011, 08:55:59 pm

Hi there guys. Recently tried to sell my 3" diwnpipe, but after a friend said he would have it but then let me down, I am now reconsidering getting it fitted to my ko3 gti with a stage 2 map.

The only thing putting me off is that the downpipe has a build on reducer to mate up with the oem cat back. Will this give me a bottleneck effect??

Has anyone fitted the same sort of system. If so does it have any effect on performance.

Title: Re: 3" downpipe
Post by: martziniuk on June 21, 2011, 09:12:05 pm

I have a cone reducer to take my DP down to the standard 2.5". I made 280.5bhp on a Dyno Dynamics RR so it will be fine.

Title: Re: 3" downpipe
Post by: ROH ECHT on June 22, 2011, 08:56:20 am

Lots of people only have a dp reduced to mate with the oem exhaust.