Quote:
Originally Posted by nkaminar
JayJay,
I tried the tube header and straight (open) exhaust but the stock exhaust manifold and Ares performance muffler is just as good and not nearly as noisy.
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I can't see how most tube headers are going to work as most are not turned length pipes to create the suction of having even flow pulses. Also, the low compression means there is not much energy available to do much. Low compression needs low restriction in the muffler. Too wide an exhaust pipe could lead to drain where exhaust doesn't flow fast enough. This seems to be forgotten in modern post turbo times.