Flowmaster's American Thunder Cat-Back for the 2011-15 Silverado/Sierra 2500HD/3500HD
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Flowmaster's American Thunder Cat-Back for the 2011-16 Silverado/Sierra 2500HD/3500HD
Part #817541
Application:
2011-2016 Chevrolet Silverado and GMC Sierra 2500HD/3500HD Crew Cab, Standard (6.5\') Bed models with 6.0L Gas engine.
Features:
Flowmaster's American Thunder Cat-back exhaust system for 2011-2016 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with a 6.0L V8 engine is perfect for the person looking for a moderate to aggressive sound level inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster. Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal systemfeatures a stainless steel 50 Series HD muffler and dual 3.00 in. DOR/S (Dual Out Rear/ Dual Out Side) stainless steel mandrel bent tailpipes. The system is finished off with beautifully polished 4.00 in. stainless steel tips. The exhaust system is manufactured in the USA and is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
✓ Stainless Steel Construction
✓ Multiple Exit Styles Provided in Kit
✓ Patented Delta Flow Technology
✓Dyno tuned for maximum performance
✓ Lifetime Limited Warranty
✓ Premium Flowmaster quality
Application:
2011-2016 Chevrolet Silverado and GMC Sierra 2500HD/3500HD Crew Cab, Standard (6.5\') Bed models with 6.0L Gas engine.
Features:
Flowmaster's American Thunder Cat-back exhaust system for 2011-2016 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with a 6.0L V8 engine is perfect for the person looking for a moderate to aggressive sound level inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster. Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal systemfeatures a stainless steel 50 Series HD muffler and dual 3.00 in. DOR/S (Dual Out Rear/ Dual Out Side) stainless steel mandrel bent tailpipes. The system is finished off with beautifully polished 4.00 in. stainless steel tips. The exhaust system is manufactured in the USA and is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
✓ Stainless Steel Construction
✓ Multiple Exit Styles Provided in Kit
✓ Patented Delta Flow Technology
✓Dyno tuned for maximum performance
✓ Lifetime Limited Warranty
✓ Premium Flowmaster quality
Last edited by FlowmasterMufflers; 10-26-2015 at 06:26 PM. Reason: Updated Fitment Info for 2016 Models
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If you have been looking for a Flowmaster exhaust system for your truck, now is the time to pull the trigger. To find out how you can receive up to $75 off of the purchase of this, or any qualifying Flowmaster product in the month of July, give us a call at (707) 544-4761.
Last edited by FlowmasterMufflers; 07-13-2015 at 01:55 PM.
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We have confirmed that Flowmaster's American Thunder Cat-back kit, part #817541 for the 2011+ GM 2500HD/3500HD Crew cab/Short bed trucks with 6.0L gas engine will carry on through the 2016 model year for the same sub-model configurations as previously listed.
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#9
Thank you for the reply. I have the 8.1L Vortec big block, and the Allison transmission, it's a crew cab with dual rear wheels. It is getting long tube headers, and the converters removed, it has an 11,400 GVWR and is emissions testing exempt.
#10
What were you looking for specifically? Just the polished 3" tips?