Later this year I'm planning on getting the exhaust done. Kooks/Pacesetter headers depending on money and a Hooker catback setup for single outlet. My question is the size of the headers. 1 3/4 is better for hp if Not going with an SC. 1 7/8 will loose me hp until I get a SC, and then the full benefits will come through. Is that right? I do plan on a supercharger down the road.