Flowmaster Exhaust for Chevy Silverado 1500 & GMC Sierra 1500 4.3L V6 / 5.3L & 4.8L V8 (1999-2007) Dual Out Side or Dual Out Same Side Exit

Fitment Information

• Chevy Silverado 1500 4.3L V6 (1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006)
  
  • Fits Base, Custom, LS, LT, WT
    
• Chevy Silverado 1500 4.8L V8 (1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006)
  
  • Fits Base, LS, LT, WT, Z71 Off-Road
    
• Chevy Silverado 1500 5.3L V8 (1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006)
  
  • Fits Base, Hybrid, LS, LT, WT, Z71 Off-Road
    
• Chevy Silverado 1500 Classic 4.3L V6 /  4.8L V8  (2007)
  
  • Fits LS, WT
    
• Chevy Silverado 1500 Classic 5.3L V8 (2007)
  
  • Fits Hybrid, LS, LT, WT
    
• Chevy Silverado 1500 Classic 4.3L V6 / 4.8L V8 (2007)
  
  • Fits LS, LT, WT
    
• Chevy Silverado 1500 Classic 5.3L V8 (2007)
  
  • Fits Hybrid, LS, LT, WT
    
• GMC Sierra 1500 4.3L V6 / 4.8 & 5.3 V8 (1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006)
  
  • Fits Base, HT, SL, SLE, SLT, WT
    
• GMC Sierra 1500 Classic 4.3L V6 (2007)
  
  • Fits SL, WT
    
• GMC Sierra 1500 Classic 4.8L V8 (2007)
  
  • Fits SL, SLE, WT
    
• GMC Sierra 1500 Classic 5.3L V8 (2007)
  
  • Fits Hybrid, SL, SLE, SLT, WT

Fitment Notes

• Dual Out Side Exit (#717924): Fits 2/4 Wheel Drive with 143.5 inch wheelbase
• Dual Out Same Side Exit (#717990): Fits Crew Cab / Extra Cab

Emissions Compliance

This exhaust does not remove or replace any emissions components and is 50 state emissions legal.

Specs & Features

• Finish: Natural
  
• Inlet Diameter: 3.00 inches
  
• Main Piping Diameter: 2.50 inches
  
• Tail Pipe Quantity: 2 / Dual
  
• Exhaust Type: Cat-Back
  
• Exit Style: Dual Out Side / Dual Out Same Side
  
• Lifetime Limited Warranty
• Dual Out Side Exit – 143.5" Wheelbase (#717924)
  • Tip: Dual 4.50" Black Ceramic-Coated 304 Stainless Steel
  • Sound: Moderate
  • Increases of up to 8 hp and 7 lb/ft of torque over the stock exhaust
  • System produces a nice rumble with minimal interior resonance
  • Large 4.50-inch black ceramic coated stainless steel tips offers an aggressive look
  • Includes complete hardware and factory styled hangers in stock locations for an easy installation
  • Flow FX "straight-through" performance muffler delivers a deep tone and improved exhaust flow
  • Mandrel-bent 16-gauge 409 stainless steel tubing maximizes exhaust flow with excellent corrosion resistance
  • Clears the factory spare tire
• Dual Out Same Side Exit – Crew Cab / Extra Cab (#717990)
  • Tip: Dual 4.00" Black Ceramic-Coated 304 Stainless Steel
  • Sound: Aggressive / Moderate
  • Max increases of up to 14 hp and 13 lb-ft over the stock exhaust at the rear wheels
  • 3.00 to dual 2.50-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • Dual 4.00-inch black ceramic coated tips add a custom look to the truck
  • Includes complete hardware and factory styled hangers in the stock locations for an easy installation
  • Flow FX “straight through” performance muffler delivers a deep, moderate performance tone and improves exhaust flow

Product Description

Upgrade your GM 1500 truck with a Flowmaster Flow FX Cat-Back Exhaust System. Manufactured from durable 409 stainless steel, these systems feature mandrel-bent tubing and a Flow FX straight-through performance muffler designed to improve exhaust flow while delivering a deep performance tone.

Both systems use dual 2.50-inch tailpipes and black ceramic-coated 304 stainless steel tips, with factory-style hanger locations and all necessary installation hardware included. The dual side-exit design places the exhaust behind or ahead of the rear wheels depending on the application, making these systems well suited for towing and providing a custom performance appearance. Both are backed by Flowmaster's Lifetime Limited Warranty.

Redline360 is an authorized Flowmaster dealer and sells only genuine Flowmaster products.