After digging through the forums looking for info about headers, I've gathered that shorties don't add up to much, if any, hp gain. That being said, I'm planning on adding the frpp boss style xpipe/side exhaust to the car and I would like to know if there might be any performance advantage gain or shift in adding shorties to the mix vs the factory manifold? I'm talking movement of power or torque curves in the rpm band as well as changes to peak numbers.
Also, since I know the suggestion is likely to come up. Long tubes are not an option.
Also, since I know the suggestion is likely to come up. Long tubes are not an option.