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Nice car mate. Let me know what you think of the vcm otr and tune, as I'm looking at the same things you are doing.
Looks good. Hsv wheels on a non hsv? Nah just kidding, sits really nice on the pentagons.
Talking to the bloke, he's doing stepped headers. I don't know exactly what they are, but from what I understood, it gives it 2 steps or something, instead of the standard single constant up power or something.
Yeah definitely worth putting some thought into it versus same old big bore, low-tech straight pipe 4-1 merge.