[FR-S Matt]

Originally Posted by jonbonazza

Err.. okay, so, dmittedly, I have no experience with H-motors (boxers), but in a typical I4, you would be ditching the header in favor of an exhaust manifold when going turbo... how does this work with a boxer motor since the ports are split into 2s, with each duo on oposite sides of the motor? In a V6 or V8, also with split cylinders, you would twin turbo teh SOB and call it a day, but that would be overkill on this tiny motor.

I don't have much experience with them either as this is my first run with one. I've just been comparing dyno charts done between headers. Turbo manifolds are very similar although ones like the P&L Header, or the FA20club manifold is a hybrid header (NA or FI) based on a V-Band clamp that wraps in the front determining where the pipe goes. The longtube design has also produced pretty substantial numbers tuned.