Yamaha WR400F 1998-2000 Exhaust GPR Trioval Slip-On

GPR Trioval Slip-On Exhaust for the Yamaha WR400F 1998-2000

The GPR Trioval slip-on replaces the stock silencer (muffler) on the 1998-2000 Yamaha WR400F. The Trioval has a classic ovoid drop shape and a hand-polished 304 stainless steel body. It meets the EPA emissions limit, and the kit comes with a removable DB killer and the link pipe.

Key Benefits

• Complete kit. With the link pipe, brackets and accessories in the box, the WR400F needs no structural modifications.
• Removable DB killer. A DB killer (baffle) comes with the kit, and it is removable.
• Hand-polished stainless steel. Both the body and the end caps come in polished stainless steel.
• Made in Italy. GPR makes the Trioval in Italy, and a 2-year manufacturer warranty covers it.

Technical Specifications

Exhaust

• Fitting: Slip-on with link pipe
• Silencer: Trioval
• Removable DB killer: Yes
• Emissions classification: Meets the EPA emissions limit
• Weight: 2.5 kg (5.51 lbs)

Construction

• Body: Hand-polished 304 stainless steel
• Silencer shape: Oval
• Silencer size: 100 mm x 130 mm (3.9 in x 5.1 in)
• Silencer length: 400 mm (15.7 in)
• Body color: Polished stainless steel
• End cap color: Polished stainless steel

Fitment

Installation and What Is Included

You can install the kit without structural modifications.

Included: silencer, removable DB killer, link pipe, brackets and fittings.

GPR homologates this kit for noise. Check whether your country requires a catalyst.

Common Questions

Is the GPR Trioval slip-on EPA compliant?

It is. GPR states that this slip-on meets the EPA emissions limit. GPR's homologation is for noise; confirm the catalyst rules where you ride.

Which Yamaha WR400F years does the Trioval fit?

Every Yamaha WR400F from 1998 to 2000 takes the Trioval. The fitment table lists each year.

Does the kit include the link pipe?

It does. You get the link pipe, its brackets and accessories in the box.

What is the warranty?

GPR provides a 2-year international warranty.

Buy From GPR Exhausts Direct

• Authorized GPR dealer
• Made in Italy, 2-year manufacturer warranty
• Free worldwide shipping
• Model-specific fitment for the Yamaha WR400F