Exhaust- Headers- and HFC pair up

birdman71

alright guys just want a little insight on which may be better in result of whp gains, yet also provides more sound than just the exhaust. I do live in CA so I do have to have the car "pass smog" every 2 years unless I keep taking it to my dad's friend haha, also no straight or test pipes cause I've already had a cop use a mirror under my car for being "loud"

I just installed my Fast Intentions cat back exhaust system with 18"resonators.


should I do one of the two ideas I have? or if you want give your own experience of what you have installed


Idea 1.
-Stillen/DC Sports/Meagan Racing Steel Headers
-ARK HFC
-FI 18" res Exhaust system

Idea 2.
-FI Long Tube Headers
-FI 18" res Exhaust system



Like I said if you guys got a better idea for gains and sound let me know

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Birdman's Build:
Powerhouse Amuse/ Nismo/ Eibach/ ACT/ Tommy Kaira/ Avant Garde/ Fast Intentions/ Project Kics/ Fly 1 Motorsports/ EVO-R/ Z1 Motorsports/ Weber Sports/ Zoom/ Zele Japan