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Your assuming the GMPP exhaust, intake, and shorty headers will make
30 rwhp, 40 lb ft or torque. Without tuning, I have my doughts that those parts will make that much HP and Torque. But assuming they do, there's
another issue to consider.
Tuning issue.
When you get your car tuned by a professional they do more than just add HP and Torque. They usually adjust settings in the transmission (shift points, rev limiter, shift firmness, torque management, etc) that make your car faster. These changes can affect the life of your transmission.
So a good tune is more than just HP and Torque.
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