If your header is designed for it. Look at all the straight header na cars and the megaphones they have for collectors.

 

your ears will hate you.

 

[QUOTE=H22toF20,Aug 29 2010, 03:26 AM] You have proof of this?

 

^So he uses 3 feet for everything and claims it makes the most power; for a given RPM? I hope you realize that every set-up is different. Especially different motors.

 

the car is just going to most likely run lean. s2ks dont come from the factory expecting mods just to be bolted on. the computer that it has on it (oem) is supposet to be reading one thing(the perameters set by honda) and when you throw a TP on there you o2 sensors are going to be reading different readings and the computer is going to want to compensate for the uncatalyzd emissons and then thus run lean....thats just my hypothesis

 

^thats why when you get FI kits they usually come with EMS's to tune for fuel and ect. so that way your not effing your car.
Bolt ons are good, but i still believe they should be tuned. like buying a, for instance, a hondata ems. that way a tuner can tune your car to run correctly all the time instead of having a car running lean and getting crapp mpg.