Yeah skip the exhaust for now. The OEM header is efficient to about 400whp as long as you have a decent cat back and TP or high flow cat. As far as worthy bolt on go, what I did notice is my SOS TB made me pick up about 10-12whp across the board, at $250 its much more bang for the buck then a header will be.

 

Nice, I'll consider it. Will a metal core cat give me an equivalent improvement combared to a conptech cutback, but without the loudness and more importantly, the drone

 

Damn iPhone I swear... Cutback? Catback is what I meant to say. Yes I have heard from several sources that the factory exhaust is engineered pretty darn well. (I was very impressed with the tri-y oem header. Never seen anything like that on an oe exhaust

 

Lastly, when it comes to tuning. Surely someone can mail me their base maps and system setup for a f20c 10psi

 

Do a hfc. That'll open it up. As for base maps they are meant to start the car and really nothing more. It will need tweakage

 

Hfc? What is that stand for?

 

High Flow Cat

 

What about if I so the high flow cat and throttle body SOS, sounds like a very nice boost in power and I bet it will lean my afr and get a little more smoother power at that.

 

You know truth be it, I really like the factory exhaust note and sounds. Zero Drone, No resonance, just a high freq sound comparable to a 1000cc inline-4 liter bike. So if I can get 80 percent of the gains with just the throttle body and high flow metallic cat, then that is the way to roll and roll peacefully.

 

Skip the tb. Do hfc, injectors, pump if u don't already have it done, stand alone and more boost