Flowmaster 40 Series Muffler | FLO59975

Flowmaster 40 Series Muffler | 42543

Product Specifications:

• Case Diameter (IN): 9-3/4 Inch X 4 Inch
• Case Length (IN): 13 Inch
• Color/ Finish: Aluminized Gray
• Includes Tip: No
• Inlet Diameter (IN): 2-1/2 Inch
• Inlet Position: Offset
• Internal Construction: Two Chambered
• Material: Steel
• Outlet Diameter (IN): 2-1/2 Inch
• Outlet Position: Offset
• Overall Length (IN): 19 Inch
• Shape: Oval
• Tip Diameter (IN): No Tip
• Tip Finish: No Tip
• Tip Length (IN): No Tip
• Tip Material: No Tip
• Wall Type: Single Wall

Fitment Chart:

High performance exhaust muffler

The Flowmaster 42543 muffler offers excellent noise reduction for a smoother and more enjoyable ride. For a small price, you get a powerful muffler that is guaranteed to be made with the highest quality and engineering.

Aggressive and deep sound

If you are a race car driver or a fan of loud exhaust systems, this is the muffler for you. It converts exhaust noise to a deep and aggressively loud sound that will give your drive the thrill it needs.

MIG welded

The craftsmen at Holley use MIG welding to make sure that the result is premium-quality and super durable. The steel is rust-resistant and will add value to your vehicle for years.

Two-chamber design

The Flowmaster 42543 muffler is ideal for dual-exhaust vehicles. It also works great with muscle and race cars.

Available in two finishes

The 40 series muffler is available in either stainless steel or aluminized steel. Both options are of high quality and deliver exceptional performance. You can choose whichever goes best with your taste and exhaust system needs.

Manufacturer's warranty

Holley provides a guarantee that your Flowmaster 42543 muffler is durable, high-quality, and functional. The manufacturer offers a limited lifetime warranty for the stainless steel muffler and a 3-year limited warranty for the aluminized steel.