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Flowmaster Exhaust Systems Part #817602 Customer Reviews

Average Rating

3 Customer Reviews

2016 Silverado 6.2 LTZ Nice rumble, not too loud

Reviewed by Richard K (Chehalis, WA) Reviewed for a 2016 Chevy Silverado — Oct 03, 2017 9:43 PM

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Quieter than expected given the "aggressive" tone label by AutoAnything. Nice rumble at idle, sounds great but not super loud at WOT. No drone at highway cruising speed, which was my main fear. No strange sound in V4 mode either. Had previously done the muffler delete on the stock system which gives an okay sound, better than stock, but not much. Also tried putting a hose clamp on the flapper valve (keeps it open)-- very annoying helicopter sound in V4 mode. Looks great, very happy!

Great exhaust system

Reviewed by Hunter B (EDNA, TX) Reviewed for a 2011 Chevy Silverado — Sep 09, 2017 7:48 AM

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I purchased my exhaust system a few weeks ago and I love it. The only thing I haven't done yet is tack weld it to the frame of my truck. I will say though, I am someone who doesn't want my vehicle to be obnoxiously loud, while still being throaty and rumbles, and this was perfect for me. The sound is just what I was looking for and the throttle response gain was a pleasant surprise. In the interest of full disclosure, I had someone else install it, so it was very easy for me.

Exactly as described

Reviewed by Corey J (FOUNTAIN, CO) Reviewed for a 2016 Chevy Silverado — Mar 28, 2017 9:27 PM

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Great exhaust, sound, and can feel the increase in power.

Flowmaster Exhaust Systems - 817602

Cat Back Exhaust - American Thunder Series
  • $762.17
  • Free Shipping
  • Ships Between 7/20 - 7/24
  • What Do You Drive?


  • Style:
    Dual Rear or Side Exit (409 Stainless)
  • Material:
    With Dual Exhaust Tips
  • Part #:
  • Main piping diameter: 2.5"
  • 50 Series HD Muffler
  • Includes dual 3.5" polished exhaust tips
  • Includes exit pipes for dual rear or dual side exit
  • Download installation instructions (PDF)

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