[BlackSI7969]

can someone tell me all the best possible headers that i can buy for my si, i heard that buddyclub was pretty good but i wanna know if theres better, and what kind of hp gains will i be getting. Right now ive got AEM CAI and Magnaflow catback with a test pipe(sounds amazing btw). im thinking about putting headers on and then getting the reflash.

 

[NIGHTHAWKSI]

you really need to search. there are so many threads about what headers are available.
http://www.8thcivic.com/forums/bolt-ons-all-motor/72518-what-header-evo2-exhaust.html

your cat back doesnt matter,all aftermarket headers will bolt to any cat back.except for the hytech which is special order anyway.

 

[Excalibur]

What are your plans with the car first? Then we can figure out what your best options are.