Flowmaster 70 Series Big Block II Muffler

Be the first to review this product

Get Easy-to-Install Parts. No Hassle.

Lowest Price Guaranteed. Free Shipping Both Ways.

  • Longer case design
  • Features Delta Flow Technology
  • Constructed from aluminized steel
  • High quality

Designed to give your vehicle maximum volume and efficiency, the Flowmaster 70 Series is the muffler of your dreams! You get everything that you need out of this muffler for sure.

Thanks to its longer case design, the Flowmaster 70 Series ensures better performance. It is recommended for trucks, SUVs, RVs, cars, and other vehicles.

With the Delta Flow Technology, this Big Block II muffler from Flowmaster will deliver unrestricted exhaust flow. At the same time, it will deliver to you awesome dampening capabilities to give you a quiet and comfortable ride.

This muffler from Flowmaster will also increase your fuel economy. And with a solid construction, you can expect nothing but the best out of this and it’s going to give you superb performance that you deserve for a long time.

Sorry, there are no videos available.
Lifetime Limited Warranty applies to Flowmaster stainless steel mufflers (excluding FlowFX series).
Three (3) Year Limited Warranty applies to Flowmaster aluminized steel mufflers.
The following part numbers are available in this product line:
524703 52571 52572 52573 53070 530702 53071 53072 853072
To purchase this product for your vehicle, please select the Year, Make and Model of your vehicle at the top of this page.

Chevrolet (1964-2015)

Avalanche, Avalanche 1500, Blazer, C10, C10 Suburban, C1500, C1500 Suburban, C20, C2500, C30, Chevelle, El Camino, K10, K10 Suburban, K1500, K1500 Suburban, K20, K2500, K30, K5 Blazer, Malibu, Monte Carlo, R10 Suburban, R1500 Suburban, R20 Suburban, Silverado 1500, Silverado 1500 Classic, Suburban, Suburban 1500, Tahoe, V10 Suburban

Dodge (1979-2010)

D100, D150, D200, D250, D300, D350, Dakota, Durango, Ram 1500, Ram 2500, Ram 3500, W100, W150, W250, W350

Ford (1987-2014)

Expedition, Explorer, Explorer Sport Trac, F-150, F-150 Heritage, F-250, F-250 Super Duty, F-350, F-350 Super Duty

GMC (1979-2013)

C1500, C1500 Suburban, C2500, C2500 Suburban, C3500, Jimmy, K1500, K2500, K3500, Sierra 1500, Sierra 1500 Classic, Yukon, Yukon XL 1500

Lincoln (1998-2010)


Nissan (2004-2013)

Armada, Titan

Pontiac (1964-1972)


Toyota (2000-2013)

4Runner, Tundra