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The new E41 ECM Upgrade Kit gives DIY enthusiasts and professional tuners a convenient option to perform the ECM upgrade on their 2017-2023 Chevy Silverado/GMC Sierra 6
Now offering solid connections
Protects from dirt and grime
Provides improved grip during shifting
Steeda Resonater Delete X-pipe 5.0L Coyote 555-3618 Ford Mustang 2015+ Subframe The new E41 ECM UpgradePart Number: 555 3618 Our Steeda S550 Mustang GT Resonator Delete X Pipe will improve your 5. 0L Coyote engine's exhaust flow and overall performance and provide the added benefit of shedding some weight off your S550 via deleting the stock resonator. Along with increased performance and weight savings, our Steeda X pipe will give your Mustang a racy, slightly raspy sports car tone. Pair this with our Steeda S550 Mustang Fastback GT Axle Back Exhaust