Im going to go wit a CC JDM Type R for $288 shipped. Im just going to have a find my own 2.5 flange though

 

man getting the JDM ITR Header set up right is a pretty expensive mod: $288 for the CC header, $100 for the 2.5 Car Sound Cat, $68 for the flange and gasket. Install is gonna be nice to since i got a hybrid and they gonna have to cut and weld.

 

yuh everyone should go JDM ITR header! i have a brand new one stainless steel....that im selling if anyones interestttttted

 

Im Running The 4 To1 And I Really Like It.

 

It really is a good idea to go with stainless. The "ceramic" ones are just referring to a coating which is applied over mild steel. The coating is to make the cheap material a bit less crappy.

Also, to get the full benefit of a 2.5" header and cat, the rest of the exhaust aft of the cat should be 2.5" as well. That means custom piping and a muffler with a 2.5" inlet. A 2.5" header and cat bolted up to a smaller-diameter midpipe and muffler will still produce some gains over a stock-sized header, but you're not using their full potential.

 

$68 for flange and gasket? :eh:

I bought a 2.5" flange, two gaskets, and an O2 sensor plug last week from Carquest for ~$15.

 

im running on 4-2-1 dc headers on my gsr 00 sounds good nice power

 

Which would be the best cat back to use with the JDM header and a 2.5" cat? Does it have to be completely custom, or are there cat backs that already have 2.5" piping.

 

there are a few 2.5 mass produced exhausts. type one comes to mind. kinda pricey though. txhatch on this board has or had one i think.

 

4-1 ceramic on my LS, with CAI and full CAT-BACK EXH. All DC. I think on their site they have a dyno sheet that with the combination of all three it shows a gain of 13 hp? Anyone else seen that? They look great and sound great too. and I pass smog! :yay: :joshers: