So I bought the Comptech shorty header listed here:
http://www.ct-engineering.com/....html

and I probably didn't do enough research on it before I bought it (because I got a pretty good deal on it). I have an 07 Si Sedan - from my understanding any coupe parts fit fine, except for the exhaust, because of the 2" difference.

So theoretically, I should have no problems installing this header on my sedan, right? I don't want to attempt the installation, only to find out something doesn't fit...

I've searched for a sedan with it on, or a DIY installation guide, but have come up empty. Also, assuming this is do-able, any idea what other parts I may need to get this up and running?

Thanks for the help guys.

 

well i dont think theres a problem and it should fit. since its just the shorty header. if it was a one piece race header for the coupe and your trying to fit it on the sedan, then you might run into problems. but it should fit since the header doesnt run out of the engine bay. but they say that there are negligible gains with just a shorty header =/

 

Yeah, I understand it's probably only a 1 hp gain (by itself) I got it for 240 shipped tho.

PLUS it's Comptech. Plus, when paired with an exhaust, it's supposed to give a significant gain. And it's Comptech.

Besides all of that... I'm going for a full Carb Exempt solution.

 

I know this post is kinda old but where did you get the header that cheap because I also dont want to remove my stock cat

 

i just installed my BCRH and ill tell you for the work into putting one in its not worth going with a shorty header i say go RH or dont even bother it took me 3 1/2 hrs with a lift and air tools to install mine and im not a "noob" at working on cars

 

the comptech header doesn't make any power by it self. if coupled with a high flow cat or the RT cat you will probably see some gains.

 

3 1/2 with a lift? wow.

 

yea that **** was a pain in the *** no room to get to anything and im a small guy with small arms lol

 

takes me almost 3 with a jackstands and jack

 

would the install have been easier if the header was a two piece set up, basically using a shorty and high flow cat ?