GMPP Manifold
GMPP Manifold
Considering this purchase since i work at a dealership and the part and labor are mad cheap. DOC gained 4hp and 4tq but i was wondering if it made the exhaust louder of if it made the car feel stronger. I mean i want to keep my warranty and also get the most out of this job at the dealership since i might be quitting soon. what are peoples thoughts and yes i did search but could not find what i was looking for.
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