Exhaust› Mufflers and Resonators

Flowmaster

40 Series Chambered Muffler 40 Series 2.50 Inch In(C)/Out(O) Aggressive Sound Flowmaster

$280.96

SKU: F00L 42542

In Stock
In Stock
Ships by Jun 17
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Flowmaster 40 Series muffler is a chambered muffler designed to deliver an aggressive exterior and interior tone. Constructed from durable, fully welded 16-gauge aluminized steel, it features no internal packing that could blow out.

This muffler has a 2.50-inch center inlet and a 2.50-inch offset outlet. It measures 19 inches in overall length and has a case dimension of 13 inches long by 4 inches thick. The 40 Series is suitable for Street/Strip and Off-Road applications.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandFlowmaster
Part NumberF00L 42542

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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