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Fitment

YearMakeModelSub Model
1999-2006ChevroletSilverado 1500LS
1999-2006ChevroletSilverado 1500
1999-2004GMCSierra 1500SLT
1999-2006ChevroletSilverado 1500LT
1999-2006GMCSierra 1500SLE
1999-2003GMCSierra 1500SL
2002-2005GMCSierra 1500
2002ChevroletSilverado 1500Custom
2002GMCSierra 1500HT
2002-2006GMCSierra 1500WT
2002-2006ChevroletSilverado 1500WT
2004ChevroletSilverado 1500Z71 Off-Road
2006GMCSierra 1500SL
2007GMCSierra 1500 ClassicSL
2007ChevroletSilverado 1500 ClassicLT
2007GMCSierra 1500 ClassicSLE
2007ChevroletSilverado 1500 ClassicLS
2007GMCSierra 1500 ClassicSLT
2007GMCSierra 1500 ClassicHybrid
2007ChevroletSilverado 1500 ClassicHybrid
2007ChevroletSilverado 1500 ClassicWT
2007GMCSierra 1500 ClassicWT

Quick Specs

  • Country of Origin: USA
  • Sold As: Kit
  • Availability: Available
  • Exhaust Type: Cat Back
  • Exit Style: Dual Out Side Dual Out Rear
  • Mount Style: Clamp-On
  • Shape: Oval
  • Part Number : 817428

Important Notes

ATTENTION STATE OF CALIFORNIA CONSUMERS

WARNING: Cancer and reproductive harm –

American Thunder Cat-Back Exhaust System 1999-2007* (2007 Classic Only) Silverado/Sierra 1500 4.3L, 4.8L, 5.3L Engine, Extended Cab/Short Bed. Stainless Steel Aggressive To Moderate Sound Flowmaster

Fits 1999-2006 Chevrolet Silverado 1500 LS 1999-2004 GMC Sierra SLT LT SLE 1999-2003 SL 2002-2005 2002 Custom HT 2002-2006 WT 2004 Z71 Off-Road 2006 2007 Classic Hybrid
4.9257075471698 848 5
98.514150943396%
4.9/5 out of 848 Company Reviews. Rating:
American Thunder Cat-Back Exhaust System 1999-2007* (2007 Classic Only) Silverado/Sierra 1500 4.3L, 4.8L, 5.3L Engine, Extended Cab/Short Bed. Stainless Steel Aggressive To Moderate Sound Flowmaster
1099.95In stock
Fits 1999-2006 Chevrolet Silverado 1500 LS 1999-2004 GMC Sierra SLT LT SLE 1999-2003 SL 2002-2005 2002 Custom HT 2002-2006 WT 2004 Z71 Off-Road 2006 2007 Classic Hybrid
  • Brand : Flowmaster
  • SKU : 817428-BDXN
  • Part Number : 817428
$1,099.95

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Product Details

This Flowmaster system is for the person who is looking for a stainless steel cat-back exhaust system with an aggressive exterior tone and moderate interior tone for the 1999 to 2007* (2007 Classic Only) GM 1500 Extended Cab/Short Bed trucks with the 4.3L, 4.8L or 5.3L engines. The American Thunder system is heavy 16-gauge mandrel-bent stainless steel tubing for durability and maximum performance.

Includes a stainless steel Super 40 Series performance muffler for that perfect blend of a deep aggressive exterior sound, with a moderate interior tone that won't drive you out of the cab when having a conversation. The dual 2.50-inch tailpipes clear the factory spare tire and give you two choices of exit locations. Straight out the back for that true dual look, or exiting out each side behind the rear wheels, which is ideal for towing. The system is finished off with a pair of highly polished 304 stainless steel tips embossed with the Flowmaster name. Designed for an easy fit, these systems include all necessary parts, hardware and instructions for an easy installation you can do at home.

  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16-gauge Stainless Steel Tubing
  • Moderate to Aggressive Exterior Exhaust Tone
  • Connects After Factory Catalytic Converter
  • Super 40 Series Performance Muffler
  • Uses the Factory Hanger Locations
  • Lifetime Limited Warranty
  • Easy Installation
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