Quote:
Originally Posted by FRSRAVEN
Noise. Honestly, its just not a boxer engine without that exaggerated boxer rumble. Ideally, an equal length header will net more power, but in practice, most of the dyno tunes I've seen net around the same amount of power. The important part being that you get it tuned.
The biggest issue to worry about is replacing the standard exhaust manifold, which clearly is not up to the task. UEL or EL, I'd bet your get more power from the car by taping a bunch of McDonalds straws together in the shape of a header and attaching them to the engine. The stock exhaust manifold is that bad.
Well, maybe not that bad, but you get the point.
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Thanks, looking at the dyno gains for several models, I'm questioning whether or not to turbo the car now. If this and an exhaust alone fixes the dip and seriously gives that much HP/ft-lbs, you're right about the stock one.
I just don't know why I never bothered to look into these threads before. Probably because the only car I've really tuned had an excellent turbo manifold stock.