Ive noticed that most decat pipes are 2 and half inch .Is there any gain in having 3" ones made up or does anyone sell them.Also can you get jap made decat pipes for the zed all ive ever seen are phnw and megan racing de cats for sale. thanks :cool:

Ive noticed that most decat pipes are 2 and half inch .Is there any gain in having 3" ones made up or does anyone sell them.Also can you get jap made decat pipes for the zed all ive ever seen are phnw and megan racing de cats for sale. thanks :cool:

 

there are benefits using 3" when running silly power, 2.5" is ideal

 

on my 200sx s14 i run 3" turbo elbow, 3" front pipe, 3-2.5" tapered decat in to 2.5" mongoose, this is apparently the best way to get rid of exhaust gases using a stepdown method, if for EG you had 2.5" decats going in to 3" cat back then this is not so good, and more likely loosing hp

 

im 99% sure leon@ allunox will make you a set of decats in SS with 3" pipework, and as quality goes you can go wrong.Speak to wozzer/john dixon or friday as they know him well :)

 

greg