GT 550
Well-Known Member
Headers are likely if anything to make it louder as the exhaust pulse resonates differently through them than through an OEM manifold, and often they only provide bang for buck at signficantly elevated power levels. On mildly modified engines I've found some increase in responsiveness but rarely an increase in power even going from awful cast iron log manifolds to headers on a big block Chrysler.
Sam's Performance did a test years ago where they back to backed about 10 different headers on the same LS1 and found they made bugger all difference, even with CAI and tune. Not saying it's universally applicable but given the cost you'd want to make sure you were getting bang for your buck. Depends what 'bang' your chasing I guess.
Congratulations Flying Fiz sounds like you're happy with the outcome, which is great. I'm encouraged that you came to Canberra as I'm usually travelling to Sydney from here to get things done! Would you mind sharing who the tuner was?
Sam's Performance did a test years ago where they back to backed about 10 different headers on the same LS1 and found they made bugger all difference, even with CAI and tune. Not saying it's universally applicable but given the cost you'd want to make sure you were getting bang for your buck. Depends what 'bang' your chasing I guess.
Congratulations Flying Fiz sounds like you're happy with the outcome, which is great. I'm encouraged that you came to Canberra as I'm usually travelling to Sydney from here to get things done! Would you mind sharing who the tuner was?
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