Flowmaster American Thunder exhaust system for the 2016 Chevrolet Camaro SS gives the LT1 a more aggressive tone in Track Mode without harshening Stealth mode.

Manufactured in Santa Rosa, California, Flowmaster’s DIY kit offers 21/2-inch mandrel-bent stainless steel instead of pinched, constricted bends formed out of mild steel that’s prone to rust ...

The first was Flowmaster's new American Thunder after-cat exhaust system (PN 17358) for '98-02 GM F-Body cars with the "3800" V-6 engine.

Hot Rod Specialties installs a Flowmaster American Thunder Series exhaust system with Super 40 Series mufflers under a classic Chevelle.

Normally, the Flowmaster American Thunder kit is shipped with a pair of 40-series mufflers, so we opted instead for a pair of larger (and yes, heavier) 70-series Big-Block II pieces with a pipe ...

By Francisco Cruz December 8, 2016 7:53 pm FacebookTwitterLinkedInPinterestEmailPrint Sponsored Sweepstakes of the Month WIN BOTH: C8 E-RAY AND C7 Z06 ...

Enter Flowmaster, which is much obliged to upgrade the 5.7-liter HEMI V8 with a cat-back exhaust system. Exclusive to dual-tailpipe models, the American Thunder package is priced at $759.97.