Grand Rock has Quiet Performance mufflers available for dual-exhaust trucks. These patented, new-technology mufflers provide an average fuel mileage increase Grand Rock has Quiet Performance mufflers ...
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Exhaust upgrades that add power without breaking the bank
Upgrading your vehicle’s exhaust system is one of the most effective ways to boost performance without draining your wallet. Whether you’re looking to increase horsepower or enhance the sound of your ...
The whole affair started several months ago when an inquisitive reader posed the seemingly simple question: "If Incognito mufflers cost $50 a pair and Phantom mufflers, which look identical, cost $30 ...
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