I'm about to do some rerouting of my ic piping (drag2 kit circles the engine twice and the car once) and I was wondering if I should go with a 2.25" or 2.5" pipes. Would there be and noticable differences between the two? I believe it is 2.25 right now.

 

It won't help you much unless you are making like over 350hp. If you are making lower power levels it might have the effect of adding a tad bit more lag without noticable benefit.

 

so if I plan tohit 350 someday I should go with the bigger pipe?

 

i plasn on hitting about that if not more in the future, im sure you will be more than fine with 2.25 piping . im just doing reg drag piping on my car.

 

whats the benifits/losses of big pipeing on say a 25+psi and 4-500 whp?

 

noen that i can think of on that high boost, but onlower apps the bigger piping will make a little more lag . if your gonna boost that high then go 2.5

 

would having 2.25" pipes limit me in anyway? I mean its something that can be maxed out, but when?

 

A friend of mine makes 450whp with 2.5" piping all around on his drag CRX. IMHO 2.25" is capable of the same amount of power with no real major hinderance, but minor loss perhaps.
M

 

we used 2" piping on my buddies junkyard turbo setup and that seemed to work fine but hes only putting out like 230