The car does pick up a bit more growl. It's subtle, but it changed the exhaust note just a tad bit lower. The M370 is nice, but with the Z1 modified VHR manifold, the m370 gains over the modded but are minimal, but the modded vhr will continue to make more power, especially up top.
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Old Car:GTM TSC'd 550whp / 410lbft tq @ 11.88PSI
New Car: Under Construction
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