Shopping cart
Menu
Search
Filters
Vehicle Fitment Check Secure SSL Checkout
Select Your Vehicle Check parts listed for your vehicle
My Garage Save vehicles & parts
Close
Vehicle Fitment CheckConfirm vehicle details before checkout
Secure SSL CheckoutYour data is always protected
Fast, Easy ShippingShips from trusted partners
Parts Legion on eBayVisit our store

Parts Legion product listing

Flowmaster PRO 4.00 IN/4.00 OUT 20 in. Muffler

Part number: 14020100 In stock
Picture of Flowmaster PRO 4.00 IN/4.00 OUT 20 in. Muffler Click image to zoom
Ready for checkout Secure this part for your build
$308.88
Secure checkout Availability and delivery details shown below Ask for fitment help
Availability: In stock
Part number: 14020100
Flowmaster PRO 4.00 IN/4.00 OUT 20 in. Muffler
Be the first to review this product
In stock — usually ships within 1 business day

The Pro Series mufflers work on all applications ranging from street trucks, diesel pullers and RV pushers to every class of racing on dirt or asphalt. During development, at the dyno and track, the Pro Series mufflers consistently delivered performance that is equal to or surpasses open pipe systems, while dramatically reducing sound levels across the RPM range.

Pro Series Muffler - 4.00 Center In / 4.00 Center Out - Moderate Sound

Universal Muffler - Not a direct fit. Some adaptation required.

Durable fully welded 16 gauge stainless steel case

High horsepower apps include diesels/RVs/trucks

Flowmaster PRO 4.00 IN/4.00 OUT 20 in. Muffler

409 Stainless Steel Internal Construction

Flowmaster Pro Series Muffler

PRO 400 IN400 OUT 20 IN

MUFF PRO 4.00 IN/4.0

Race Proven Design

MUFF 4.00IN

No vehicle listing found We do not have a vehicle-specific fitment row for this product yet.

This does not automatically mean the part is universal. Send us your year, make, model, trim, and the part number before ordering.

Ask fitment help

Product tags