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COMP Cams® Thumpr™ NSR Cams for Dodge Gen III, IV Hemi Engines

hemi thumpr

  Memphis, TN – The COMP Cams® Thumpr™ NSR Cams for Dodge Gen III/IV Hemi Engines bring the wildly popular Thumpr™ sound to late model Hemi engines, while offering big power gains and no need to upgrade valve springs. The Thumpr™ grinds for Gen III and Gen IV Hemi engines need little more than a tune (phaser limiter also required ... Read More »