Duel Exhaust
Grandson wants to install duel exhaust on his 08 GMC Sierra 5.3L engine. Any drawbacks to this or is there an upside. I've heard both. With the valve overlap and less back pressure you lose low end to...
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I preferred vehicles that are "sleepers" - They are subdued and blend in yet have something special done that makes them perform better than they ever should. This view may be due to the fact that my local police department where I grew up was a revenue source for my town and the top grossing officers received the newest equipment as an incentive.
