Flowmaster Signature Series 304 Stainless Steel Cat-Back Exhaust for GM Trucks

Flowmaster’s Signature Series exhaust is a premium line created for those of you looking for an exhaust system that is hand crafted from 304 stainless steel and tuned for the best sound possible. Initial Signature Series offerings will focus on modern full-size and mid-size trucks.

These Made-In-The-USA exhaust systems offer a moderate to aggressive exhaust tone with rear exit exhaust tips (737857 – single tip/767894 – dual tip). But these exhaust systems just don’t look good, they perform too. Dyno testing revealed that these systems can add up to 21 horsepower and 26 lb-ft of torque at the rear wheels when compared to the stock exhaust (dyno tested on a 2019 Chevrolet Silverado 1500 with a 5.3L engine), and that’s power you can feel!

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[Alfonxoss]

Flowmastes is and always will be the grandfather of all muffles idc what everyone else says or thinks

[douglasformosa]

Is there anyway to see a cutaway of what the signature mufflers look like inside?

[Doc]

How does the Signature series sound on a 3.5L V6 in the Tacoma?