Quote:
Originally Posted by JasonG
Combustion chamber, piston dome and ex valves helps if you're boosting and running lean. If you are doing a home-brew lean burn, it may save your engine.
For all around better fuel usage, spend the money on ceramic coated tube headers. The retained heat keeps the exhaust velocity up.
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that is clever. some cars have metal covers all over the pipes...even black stove paint was smarter. that may have something cermical anyway...
