Talk Morgan Forums Morgan Sports Cars Classic Morgans (pre-CX) Sports manifold and exhaust for 2007 Plus 4

With a good manifold, sports cat and silencer you would expect to get about 10 hp at the top end. That gain is not particularly noticeable because you seldom rev the engine to the red line but you should get a nice gain in mid range torque. Then it is worthwhile getting a remap to match the new exhaust system. Lets say 155hp.

After that throttle-bodies (180hp), and after that a fast road cam (200hp):)