Exhaust manifolds...
Discussion
rich24v said:
Interesting test, I think they did a similar test where they bash modified the header tubes
with a hammer putting big dents into the tube as if to clear a steering bar etc and found
it made hardly any difference to power !
just watched that one....very very surprising results !!with a hammer putting big dents into the tube as if to clear a steering bar etc and found
it made hardly any difference to power !
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