Flowmaster 817643 Downpipe-Back System 409S for 01-07 Chev./GMC

Flowmaster 817643 Downpipe-back System 409S - Dual Side Exit - American Thunder® - Moderate Sound

Flowmaster's American Thunder downpipe back exhaust system for the 2001-2007 Chevrolet and GMC 2500HD and 3500HD pickup truck is perfect for the person looking for a moderate sound level with all of the performance benefits that you would expect from Flowmaster. This DOS (Dual Out Side) bolt on system for the 6.6L Duramax diesel engine features a special Power Chamber muffler, dual 4.00 in. 409S stainless steel tailpipes and 5.00 in. polished stainless steel tips. This system is designed to fit all wheelbases, except for Standard Cab/Long Bed models. 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.

Features:

• Stainless Steel Construction
• Dyno Tuned For Maximum Performance
• Mandrel Bent for Smooth Flow
• Lifetime Limited Warranty

Product Specification:

• 2WD/4WD: RWD/4WD
• Exhaust series: American Thunder®
• Exit Position: DOS
• Heat shield: None
• Inlet dia: 4
• Material: 409S Stainless Steel
• Muffler part number: Kit Only
• Muffler qty: 1
• Muffler series: Power Chamber (New special build)
• Outlet dia: 4.00
• Single/Dual: Dual
• Sound level: Moderate
• System type: Downpipe Back
• Tip dia: 5
• Tip length: 10
• Tip qty: 2
• Tubing dia: 4

Fitments:

• 2001-2005 Chevrolet Silverado 2500 HD Base V8, 6.6L
• 2007 Chevrolet Silverado 2500 HD Classic LS V8, 6.6L
• 2007 Chevrolet Silverado 2500 HD Classic LT V8, 6.6L
• 2007 Chevrolet Silverado 2500 HD Classic WT V8, 6.6L
• 2001-2006 Chevrolet Silverado 2500 HD LS V8, 6.6L
• 2001-2007 Chevrolet Silverado 2500 HD LT V8, 6.6L
• 2007 Chevrolet Silverado 2500 HD LTZ V8, 6.6L
• 2004-2007 Chevrolet Silverado 2500 HD WT V8, 6.6L
• 2001-2005 Chevrolet Silverado 3500 Base V8, 6.6L
• 2007 Chevrolet Silverado 3500 Classic LS V8, 6.6L
• 2007 Chevrolet Silverado 3500 Classic LT V8, 6.6L
• 2007 Chevrolet Silverado 3500 Classic WT V8, 6.6L
• 2001-2006 Chevrolet Silverado 3500 LS V8, 6.6L
• 2001-2006 Chevrolet Silverado 3500 LT V8, 6.6L
• 2004-2006 Chevrolet Silverado 3500 WT V8, 6.6L
• 2007 Chevrolet Silverado 3500 HD LT V8, 6.6L
• 2007 Chevrolet Silverado 3500 HD LTZ V8, 6.6L
• 2007 Chevrolet Silverado 3500 HD WT V8, 6.6L
• 2002-2005 GMC Sierra 2500 HD Base V8, 6.6L
• 2007 GMC Sierra 2500 HD Classic SL V8, 6.6L
• 2007 GMC Sierra 2500 HD Classic SLE V8, 6.6L
• 2007 GMC Sierra 2500 HD Classic SLT V8, 6.6L
• 2007 GMC Sierra 2500 HD Classic WT V8, 6.6L
• 2001-2006 GMC Sierra 2500 HD SL V8, 6.6L
• 2001-2007 GMC Sierra 2500 HD SLE V8, 6.6L
• 2001-2007 GMC Sierra 2500 HD SLT V8, 6.6L
• 2003-2007 GMC Sierra 2500 HD WT V8, 6.6L
• 2002-2005 GMC Sierra 3500 Base V8, 6.6L
• 2007 GMC Sierra 3500 Classic SL V8, 6.6L
• 2007 GMC Sierra 3500 Classic SLE V8, 6.6L
• 2007 GMC Sierra 3500 Classic SLT V8, 6.6L
• 2007 GMC Sierra 3500 Classic WT V8, 6.6L
• 2001-2006 GMC Sierra 3500 SL V8, 6.6L
• 2001-2006 GMC Sierra 3500 SLE V8, 6.6L
• 2001-2006 GMC Sierra 3500 SLT V8, 6.6L
• 2004-2006 GMC Sierra 3500 WT V8, 6.6L
• 2007 GMC Sierra 3500 HD SLE V8, 6.6L
• 2007 GMC Sierra 3500 HD SLT V8, 6.6L
• 2007 GMC Sierra 3500 HD WT V8, 6.6L

Note: Fits 2001 to 2007 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD Trucks with a Duramax Diesel 6.6L engine. All wheel bases except Standard Cab with a Long Bed configuration.