kie_dub 0 Posted March 20, 2008 Report Share Posted March 20, 2008 Recently bought my vr6 and it has a cat-back milltek exhaust system fitted on it. The guy gave me a straight through pipe with the car that goes with the system. He said he changed it over and put the cat back on for the mot and hasn't changed it back over. Just wondering.... whats the pro's and con's to a straight through pipe and do you get any power gains or does it just make the car louder???? Link to post Share on other sites
jaysVR6 2 Posted March 20, 2008 Report Share Posted March 20, 2008 No gains on a standard car to be honest - just more noise and grief when it's MOT time! Link to post Share on other sites
kie_dub 0 Posted March 23, 2008 Author Report Share Posted March 23, 2008 kk might stick it on see wot it sounds like Link to post Share on other sites
Marky 0 Posted June 8, 2008 Report Share Posted June 8, 2008 Does anyone know how much back pressure you lose when you replace the cat with a decat pipe on an otherwise standard system. Link to post Share on other sites
DAZVR6 0 Posted June 8, 2008 Report Share Posted June 8, 2008 Recently had my suitecase box removed and replaced with a custom pipe, now running 6 branch mani straight through to back box with nothing in between - 2.25" bore and it sounds awesome without being chavvy nova stylee and tbh seems just as fast as before with the 2 box system.The car was decatted when i brought it so can't tell if it loses you much back pressure or power but mine made 191.4 bhp at Awesome recently so can't be bad. Link to post Share on other sites
vw_golf_vr6 0 Posted June 8, 2008 Report Share Posted June 8, 2008 fit a jetex or miltek sports cat, will pass mot then, sound better and also flows better than stockdecats are waste of time unless it is a full out race spec engine Link to post Share on other sites
xyber 1 Posted June 8, 2008 Report Share Posted June 8, 2008 Unless your going for forced induction, Id just leave the CAT standard, or atleast wouldnt bother replacing unless the original one was shot anyway, the whole standard exhaust system on the VR flows pretty well TBH, you will get small gains but its more just for the looks and sound really. Link to post Share on other sites
mike 6 Posted June 9, 2008 Report Share Posted June 9, 2008 i agree plus peformance cats are about 300+ i think same money id expect to pay for a full system! Link to post Share on other sites
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