All Things Mk5 > Performance Modifications

3" downpipe

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craig_t:
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.

martziniuk:
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.

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

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