i recently bought 00 Si, all i got done is intake and exhaust. i want to get a set of dc headers to complete the exhaust. will the headers make my ride slower, thats what i've been hearing. please help me. i just don't want it to be slower..help please!!!!!!!!!1

 

It will make your car faster becuase your stock exhaust manifold is soo restrictive goin into a 2.25 catback(im guessing thats what u have)There would be a lot more Air flow coming from the Full exhaust system..

 

Just an FYI, DC headers have a tendency to rust around the flange weld joints. The stainless ones aren't stainless at that point. If you get the ceramic coated ones, don't scratch the coating. Hopefully, you live in a non-salty area...that way, you don't have much issues. If you do (anywhere cold where they salt the roads or near an ocean), you'll be a lil pissed later when you find rust. You might want to check out the A'pex GT and Greddy stainless headers. Kamikaze are good headers for the price, but again, don't scratch the coating cuz they only come in coated mild steel.

 

if ur gonna go with dc sport...i have heard that the 4-2-1 header gets most out of ur si rather than the 4-1.

 

I second the APEX-i GT 4-2-1! I have had no problems, no corrosion, and HAVE seen small gains. It won't be noticeable (1-2 tenths off ¼ mile time) but it definitely adds a bit more power than that exhaust you already put on. Go with the APEX-i, very good quality header.