GPR Trioval Slip-On Exhaust for the Yamaha YZ450F 2007-2009
The GPR Trioval slip-on fits the 2007-2009 Yamaha YZ450F and replaces the stock silencer (muffler). The Trioval takes the classic ovoid drop shape in hand-polished 304 stainless steel. The package includes a removable DB killer and the link pipe. The GPR Trioval meets the EPA emissions limit.
Benefits
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Kit contents. With the link pipe, brackets and fitting accessories in the package, the YZ450F does not require any structural modifications.
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Removable DB killer. GPR supplies a DB killer (baffle) that the rider can remove.
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Hand-polished stainless steel. The body and the end caps share the same polished stainless steel finish.
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Italian manufacturing. The Trioval is Italian made and has a 2-year manufacturer warranty from GPR.
Technical Details
Exhaust
- Kit type: Slip-on, link pipe supplied
- Silencer series: Trioval
- Removable DB killer: Yes
- Emissions classification: EPA compliant
- Weight: 2.5 kg (5.51 lbs)
Construction
- Silencer body: Hand-polished 304 stainless steel
- Silencer shape: Oval
- Dimensions: 100 mm x 130 mm (3.9 in x 5.1 in)
- Overall length: 400 mm (15.7 in)
- Body color: Polished stainless steel
- End cap color: Polished stainless steel
Fitment
| Make |
Model |
Year |
Notes |
| Yamaha |
YZ450F |
2007, 2008, 2009 |
Slip-on with removable DB killer |
Installation
Mounting the GPR Trioval slip-on does not require any structural changes.
Package contents: silencer, removable DB killer, link pipe, brackets and fittings.
The homologation for the Trioval covers noise. The catalyst requirement depends on the country, so riders should check the local rules.
Common Questions
Is the GPR Trioval slip-on within the EPA emissions limit?
Yes, the GPR Trioval slip-on meets the EPA emissions limit, according to GPR. GPR homologated the Trioval for noise only, so riders should confirm the catalyst rules in their area.
Which Yamaha YZ450F model years fit the Trioval?
GPR lists the Trioval for the Yamaha YZ450F from 2007 through 2009. The fitment table shows each model year.
Does the kit include the link pipe?
Yes. GPR supplies the link pipe, brackets and accessories in the package.
What warranty covers the GPR Trioval slip-on?
The GPR Trioval slip-on carries a 2-year international warranty.
Why Choose Magma Powersports
- Authorized GPR dealer
- Built in Italy, covered by GPR's 2-year manufacturer warranty
- Free shipping worldwide
- Dedicated fitment for the Yamaha YZ450F
