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unless you're forced induction, a throttle body has minimal effects. Especially considering our manifolds are plastic and cant be shaved to a larger diameter. Get a CAI, Tune, and exhaust first.
Location: PA to KY ('07) to IL ('09) to MS ('10) to FL ('11)
Posts: 16,182
Do your homework. The info is all over this and other forums. Don't waste your money on an aftermarket TB unless you're FI or heavily modded internally. And I'm sure you're aware that going to duals will gain you a little exhaust note and minimal if ANY, power. If you want to put your money in some power, it's a CAI & CUSTOM tune.