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Flowmaster FlowFX Cat-Back Exhaust System

Fits 1999-2006 GM 1500 (2007 1500 Classic) 4.3, 4.8, 5.3-Liter, FlowFX Cat-Back, Dual Same Side Out Exit, Stainless Steel Exhaust System

Part # 717990
In Stock
Holley Days Price
$539.95
Suggested Retail
$600.00
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Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

See Emissions Details
This Flowmaster® FlowFX® cat-back exhaust system for the 1999-2006 GM 1500 trucks (2007 1500 Classic) with the 4.3, 4.8, or 5.3-liter engine (Crew Cab 5.5' bed, Extra Cab 6.5' bed only) is manufactured using durable 409 stainless steel throughout and features 3.00 to dual 2.50-inch mandrel bent pipes for better exhaust gas flow. A FlowFX "straight-through" muffler is used for a moderate to mild sound level and maximum performance. Maximum increases on the dyno revealed +14 hp and +13 lb-ft at the rear wheels. This system exits out the same side, in front of the rear wheel on the passenger with dual 4.00-inch black ceramic tips for added style and a custom look. The system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's Lifetime Limited Warranty.

Features:

  • 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
  • FlowFX “straight through” performance muffler delivers a deep, moderate performance tone and improves exhaust flow

About Flowmaster

Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound.

Brand Flowmaster
Emission Code5
Exhaust SeriesFlowFX
Exit PositionDOSS
Mount TypeUses Factory Hangers
Muffler Body Length (in)14
Muffler ColorNatural
Muffler FinishBrushed
Muffler Inlet Diameter3.00
Muffler Inlet LocationCentered
Muffler Material409S Stainless Steel
Muffler Outlet Diameter2.50
Muffler Outlet Diameter (in)2.50
Muffler Outlet LocationDual Outlet
Muffler Overall Length (in)20
Muffler Part NumberKit Only
Muffler Quantity1
Muffler SeriesFlowFX
Muffler ShapeOval
Muffler TypeAbsorption
Product TypeExhaust System
Single DualDual
Sound LevelAggressive / Moderate
System TypeCat-back
Tip CutAngle
Tip Diameter4.00
Tip Edge StyleCut
Tip FinishBlack Ceramic
Tip Length5.25
Tip LogoLaser
Tip Material304 Stainless
Tip Quantity2.00
Tip ShapeRound
Tip StyleDouble Wall
Tubing Diameter (in)3.00/2.50
Tubing Material409S Stainless Steel
UPC090127136744
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number717990
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This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Fits 1999-2006 GM 1500 (2007 1500 Classic) trucks with 4.3, 4.8, 5.3-Liter engines. Fits Crew Cab 5.5' bed, Extra Cab 6.5' bed only. 2 and 4 wheel drive

*Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

Some parts are not legal for use in California or other states with similar regulations.