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Fits 6.6L Duramx Diesel 2500 or 3500 Extended Cab/Short Bed Trucks, part #25020
Straight-through 4", nonrestrictive system design maximizes airflow, improving performance and fuel economy.
Mandrel Bends and design deliver increased airflow vs. stock. Downpipe NOT included.
dB Patented RSC™ Technology allows us to acoustically style the sound of your truck to give you the true voice of performance without the annoying drone while cruising.
Quickly enjoy the dB sound with an easy bolt-on installation. No welding needed and all hardware and detailed, full-color instructions are included!
Limited LIFETIME warranty for as long as you
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