MBRP AT-7402 Utility Series Slip-On Muffler for 87-95 Yamaha YFM350 Moto-4

Regular price: $269.99
Regular price: ~~$284.20~~
Sale price: $269.99

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Product Specification:

SKU:MBRPAT-7402

MPN: AT-7402

UPC: 882963109644

Weight: 6.9 lb

Inventory: 6

Type: Catback

Vehicle Fitment:

Yamaha YFM350 Moto-4 all models:

1987-1990 YFM350ER Moto-4
1992-1995 YFM350 Moto-4 (Base, ER, and LE variations)

Fitment Notes:

Direct bolt-on replacement for OE mufflers on specified Moto-4 models

Hand-tools install--no cutting or welding required

Features:

Chambered muffler design with internal tubing and resonant expansion chambers for quiet yet crisp exhaust note

Mild sound increase over stock--noise level remains in the mid-to-high 70 dBA range

Fully welded, maintenance-free design--no repacking needed

Black-coated aluminized steel or black powder-coated 304 stainless steel construction for enhanced corrosion and heat resistance

Comes with matching black powder-coated tip for a clean, finished look

Includes all necessary hardware: clamp, hanger, spring-puller tool

Designed for utility use--quietest profile in MBRP's ATV lineup

Backed by a 1-year manufacturer warranty

Specifications:

Part Number: AT-7402

Inlet Diameter: 1.25" (OEM-compatible)

Body Diameter: 3.5" chambered core

Material Options: Black-coated aluminized steel or 304 stainless (varies by region)

Finish: Matte black for OEM-style appearance

Warranty: 1 year, including parts and workmanship coverage

Included Components:

1x Slip-on muffler (Utility Series)

1x Exhaust clamp

1x Mounting hanger bracket

1x Spring puller tool

No additional gaskets or adapters required

Product Description:

The MBRP AT-7402 Utility Series muffler is an excellent direct-fit upgrade for 1987-1990 and 1992-1995 Yamaha YFM350 Moto-4 ATVs. Featuring a fully welded design with chambered internals, it delivers a crisp and refined exhaust tone--slightly louder than stock but well within quiet-zone requirements. Built with black-coated aluminized or stainless steel, this muffler resists corrosion while enhancing durability--made to last without the hassle of repacking. The kit includes all installation hardware and is designed for hand-tool installation. Finished in sleek black, it's the quietest and most practical performance muffler in MBRP's ATV-specific Utility line, backed by a one-year warranty.