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Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
Part 54658 is configured for its specific application with attention to fitment requirements
or directly to your ECU for total thermal management
Excel-G uses the same monotube gas-pressure technology found in original equipment applications
Built for serious street/strip and competition use
These mufflers are glasspack-style and will get louder with use as packing material ages
POWER MODULE Griffin Thermal Products Part 54658 is configured forThe POWER MODULE from Atech Motorsports is a quality jet performance designed for automotive performance enthusiasts. This component is built to meet or exceed OEM specifications while providing improved durability and performance over factory equipment. Manufactured with precision engineering and quality materials, this jet performance offers reliable operation in demanding conditions. Whether you are restoring a classic vehicle or upgrading a modern
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