downpipe or highflow cat

[TheSil40]

I have a high flow cat already going to a 2.5 in exhaust should I j ust ditch it and get a downpipe or just leave it and get a 3 in turbo extension..?

anybody around the wichita ks area?

[SpeedRacer1]

Well its up to you, the 3 inch will be what you want under moderate power conditions but then again if your into saving the enviroment then leave the cat. There wouldnt be great power gains on having a full 3 in pipe over a 2.5 high flow cat at near stock boost and engine conditions. What you could do is just buy a downpipe ($100-$150) and a test pipe ($20 -$30) and then swap back between the test pipe and cat as often as needed. OR to fool cops you could gut a stock cat or buy one ($40-$70ish)and have the test pipe welded in there. Or just leave the stock dummy cat empty.

[Thesil]

ah i see ^ i hate the othe sn already

i guess il just stick with the high flow then it'd be a waste of money to dump it now.....

thanks guy

[SrSLeePeR]

Don't S14's come with gutted cats?

[I H8 UR DSM]

um..no