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SPD'S GX Series Cat-Back Exhaust has shattered all expectations! Designed to be AGRESSIVE but DRONE FREE sound that you will love. Manufactured using 304 stainless steel mandrel bent 3" tubing and GX Series stainless muffler, these cat-back systems are designed for maximum turbo whistle without the raspy note at high rpms. Installation is a breeze with our systems being 100% bolt on with no cutting needed.
With our base system utilizing the factory resonator which gives your truck a nice growl. We recommend adding the resonator delete or performance resonator for full performance gains. The factory resonator tubing is 2 1/2 inches where there is noticeable performance gains with our true 3" resonator delete.
2018 3.5L F-150 with factory downpipes and factory resonator
2018 3.5L F-150 with factory downpipes and resonator delete option
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