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Flowmaster 524703 70 Series Big Block II Muffler
Part No. 524703

This is a direct fit, vehicle specific part.
Please verify this fits your vehicle.

vehicle fitment information
Attribute Size / Style
Body Height (In.) 5
Body Length (In.) 22
Body Width (In.) 10
Cab Style And Bed Style Crew Cab w/67.1 in./5 ft. 7.1 in. Bed
Inlet Position Front
Inlet Size (In.) 2.25
Inlet Type Dual Inlet
Length (In.) 28
Material Aluminized Steel
Outlet Single Center Outlet
Outlet Position Center
Outlet Size (In.) 3
Position N/A
Shape Oval
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$150.88
in stock
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  • 70 Series Big Block II Muffler, 2.25 in. Dual Inlet/3 in. Center Outlet, Case Dimensions 5 in. x 10 in. x 22 in., 28 in. Overall Length, Aluminized Steel
  • 3 Year Limited Warranty
  • Durable Fully Welded 16ga Aluminized Steel
  • Improved HP/TQ and Potential Mileage Improvement
  • Minimal Interior Resonance
  • Race Proven Patented Delta Flow Technology
  • Recommended For SUV/Trucks/Motorhomes/Tow Vehicles
  • Stock to Mild Exterior Exhaust Tone
  • www.Flowmastermufflers.com
  • Body Height (in.): 5
  • Body Length (in.): 22
  • Body Width (in.): 10
  • Inlet Position: Front
  • Inlet Size (in.): 2.25
  • Inlet Type: Dual Inlet
  • Length (in.): 28
  • Material: Aluminized Steel
  • Outlet: Single Center Outlet
  • Outlet Position: Center
  • Outlet Size (in.): 3
  • Position: N/A
  • Shape: Oval
  • Adapters Needed For OEM Exhaust
YearsMakeModelSubModelEngineFuel
1996-1999CHEVROLETC1500 PICKUP5.7L / 350 C.I.D.-5.7L / 350 C.I.D.GAS
1996-1998CHEVROLETC1500 SUBURBAN5.7L / 350 C.I.D.-5.7L / 350 C.I.D.GAS
1996-1999CHEVROLETC2500 PICKUP5.7L / 350 C.I.D.-5.7L / 350 C.I.D.CNG
1996-1999CHEVROLETC2500 PICKUP5.7L / 350 C.I.D.-7.4L / 454 C.I.D.GAS
1996-1999CHEVROLETK1500 PICKUP5.7L / 350 C.I.D.-5.7L / 350 C.I.D.GAS
1996-1999CHEVROLETK1500 SUBURBAN5.7L / 350 C.I.D.-5.7L / 350 C.I.D.GAS
1996-1999CHEVROLETK2500 PICKUP5.7L / 350 C.I.D.-5.7L / 350 C.I.D.CNG
1996-1999CHEVROLETK2500 PICKUP5.7L / 350 C.I.D.-7.4L / 454 C.I.D.GAS
1996-1999CHEVROLETTAHOE5.7L / 350 C.I.D.-5.7L / 350 C.I.D.GAS
1994-1998DODGERAM 2500 PICKUP8.0L / 488 C.I.D.-8.0L / 488 C.I.D.GAS
1994-1998DODGERAM 3500 PICKUP8.0L / 488 C.I.D.-8.0L / 488 C.I.D.GAS
2001-2001FORDEXPLORER4.0L / 245 C.I.D.-4.0L / 245 C.I.D.FLEX
1996-2001FORDEXPLORER4.0L / 245 C.I.D.-5.0L / 302 C.I.D.GAS
2001-2001FORDEXPLORER SPORT4.0L / 245 C.I.D.-4.0L / 245 C.I.D.FLEX
2001-2001FORDEXPLORER SPORT4.0L / 245 C.I.D.-4.0L / 245 C.I.D.GAS
1998-1998GMCC1500 PICKUP5.7L / 350 C.I.D.-5.7L / 350 C.I.D.GAS
1996-1997GMCC1500 PICKUPSIERRA5.7L / 350 C.I.D.-5.7L / 350 C.I.D.GAS
1996-1997GMCC1500 PICKUPSIERRA XC5.7L / 350 C.I.D.-5.7L / 350 C.I.D.GAS
1999-1999GMCC2500 PICKUP5.7L / 350 C.I.D.-5.7L / 350 C.I.D.CNG
1999-1999GMCC2500 PICKUP5.7L / 350 C.I.D.-7.4L / 454 C.I.D.GAS
1996-1998GMCC2500 PICKUPSIERRA5.7L / 350 C.I.D.-5.7L / 350 C.I.D.CNG
1996-1998GMCC2500 PICKUPSIERRA5.7L / 350 C.I.D.-7.4L / 454 C.I.D.GAS
1996-1998GMCC2500 PICKUPSIERRA XC5.7L / 350 C.I.D.-5.7L / 350 C.I.D.CNG
1996-1998GMCC2500 PICKUPSIERRA XC5.7L / 350 C.I.D.-7.4L / 454 C.I.D.GAS
1996-1999GMCC2500 SUBURBAN5.7L / 350 C.I.D.-7.4L / 454 C.I.D.GAS
1999-1999GMCK1500 PICKUP5.7L / 350 C.I.D.-5.7L / 350 C.I.D.GAS
1996-1998GMCK1500 PICKUPSIERRA5.7L / 350 C.I.D.-5.7L / 350 C.I.D.GAS
1996-1998GMCK1500 PICKUPSIERRA XC5.7L / 350 C.I.D.-5.7L / 350 C.I.D.GAS
1998-1999GMCK2500 PICKUP5.7L / 350 C.I.D.-5.7L / 350 C.I.D.CNG
1998-1999GMCK2500 PICKUP5.7L / 350 C.I.D.-7.4L / 454 C.I.D.GAS
1996-1997GMCK2500 PICKUPSIERRA5.7L / 350 C.I.D.-5.7L / 350 C.I.D.CNG
1996-1997GMCK2500 PICKUPSIERRA5.7L / 350 C.I.D.-7.4L / 454 C.I.D.GAS
1996-1997GMCK2500 PICKUPSIERRA XC5.7L / 350 C.I.D.-5.7L / 350 C.I.D.CNG
1996-1997GMCK2500 PICKUPSIERRA XC5.7L / 350 C.I.D.-7.4L / 454 C.I.D.GAS
1996-1998GMCYUKON5.7L / 350 C.I.D.-5.7L / 350 C.I.D.GAS
1999-1999GMCYUKONSLE5.7L / 350 C.I.D.-5.7L / 350 C.I.D.GAS
1999-1999GMCYUKONSLT5.7L / 350 C.I.D.-5.7L / 350 C.I.D.GAS
2004-2004NISSANTITAN5.6L-5.6LGAS
2005-2010NISSANTITANLE5.6L-5.6LFLEX
2005-2010NISSANTITANLE5.6L-5.6LGAS
2008-2010NISSANTITANPRO-4X5.6L-5.6LFLEX
2008-2010NISSANTITANPRO-4X5.6L-5.6LGAS
2005-2010NISSANTITANSE5.6L-5.6LFLEX
2005-2010NISSANTITANSE5.6L-5.6LGAS
2005-2010NISSANTITANXE5.6L-5.6LFLEX
2005-2010NISSANTITANXE5.6L-5.6LGAS
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  • Why don't we show the price?

    When a manufacturer implements a Minimum Advertised Price (MAP) policy, they create limits on the list price that retailers are allowed to advertise their products for. In line with our efforts to continually provide the lowest possible price, we've made it easier for you to inquire about our Exclusive Pricing on these MAP items.

  • Shipping Policy

    Free Ground Shipping
    Free FedEx ground shipping on all orders over $100. Free shipping to 48 Continental United States only. Orders under $100 will incur a FedEx ground shipping charge of $9.95.

    $9.95 Per Wheel/$25 Per Tire
    Each wheel will incur a $9.95 per wheel fee and each tire will incur a $25 per tire fee up to $99. You will be charged a maximum of $99 regardless of how many wheels and/or tires you purchase.

    $99 Truck Freight
    Oversized parts will incur a $99 truck freight charge that FedEx cannot provide standard ground shipping on.