MBRP AT-7104 Utility Slip-On Exhaust w/ Muffler for Honda TRX350 86-89

Vehicle Fitment

• 1986-1987 Honda TRX350 FourTrax 4x4 (350 cc ATV body)
• 1987-1989 Honda TRX350D FourTrax Foreman 4x4 (350 cc ATV)

Features

• Utility Series slip-on exhaust with chambered muffler for ATV use
• Direct OEM replacement for stock muffler/exhaust on compatible Honda TRX350 models
• Improved airflow and slightly louder tone over factory exhaust without being overly aggressive
• Black powder-coated finish for corrosion resistance and rugged look
• Includes USFS-approved spark arrestor - useful for off-road trail compliance
• Bolt-on design installs with basic hand tools - no cutting or welding required
• Chambered muffler construction helps reduce obnoxious drone while producing deeper tone
• 3.5" body diameter with 1.25" inlet for correct fitment and decent flow

Specifications

• Part Number: MBRP AT-7104
• Application: ATV slip-on exhaust with utility muffler
• Material: Black-coated aluminized steel body
• Body Diameter: 3.5 in
• Inlet Diameter: 1.25 in
• Finish: Powder-coated black
• Muffler Style: Chambered utility design
• Includes Spark Arrestor: Yes (USFS approved)

Included Components

• 1x Utility atmospheric muffler/exhaust slip-on
• 1x Mounting clamp and slip-on hardware
• 1x USFS-approved spark arrestor
• Installation bracket and fasteners

Product Description

The MBRP AT-7104 Utility Slip-On Exhaust with Muffler is a direct replacement performance exhaust system designed for classic Honda ATV models - specifically the 1986-1987 TRX350 FourTrax 4x4 and 1987-1989 TRX350D FourTrax Foreman 4x4. Built with a chambered utility muffler and black-coated aluminized steel construction, this slip-on exhaust boosts airflow over stock and provides a slightly deeper, more robust tone without turning your ATV into a race-only machine.

Installation is simple and bolt-on - no cutting or welding needed - and the system includes all necessary clamps, mounting hardware, and a USFS-approved spark arrestor for trail-friendly operation. The chambered muffler design keeps sound levels reasonable while enhancing exhaust flow and performance consistency. Ideal for owners looking to replace old, tired stock mufflers or add a bit of tone and flow to their ATV's exhaust system without changing its intended utility character.