GPR M3 Inox Slip-On Exhaust for the KTM 390 Duke 2021-2023
GPR designed the GPR M3 Inox slip-on to replace the stock silencer (muffler) on the 2021-2023 KTM 390 Duke. The RP-M3 Inox combines a round hand-brushed stainless steel body with a removable racing grill and CNC-machined end caps. The package includes a removable DB killer and the link pipe. The GPR M3 Inox meets the EPA emissions limit.
Benefits
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Kit contents. The M3 Inox package contains the link pipe, brackets and fitting accessories, and the 390 Duke does not need 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-brushed stainless steel. GPR finishes the body and the end caps in brushed stainless steel.
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Italian manufacturing. The M3 Inox is Italian made and has a 2-year manufacturer warranty from GPR.
Technical Details
Exhaust
- Kit type: Slip-on, link pipe supplied
- Silencer series: M3 Inox
- Removable DB killer: Yes
- Emissions classification: EPA compliant
- Weight: 1.5 kg (3.31 lbs)
Construction
- Silencer body: Hand-brushed stainless steel
- End caps: CNC-machined
- Silencer shape: Round
- Dimensions: 100 mm (3.9 in) diameter
- Overall length: 250 mm (9.8 in)
- Body color: Brushed stainless steel
- End cap color: Brushed stainless steel
Fitment
| Make |
Model |
Year |
Notes |
| KTM |
390 Duke |
2021, 2022, 2023 |
Slip-on with removable DB killer |
Installation
The installation does not need any structural changes to the 390 Duke.
Package contents: silencer, removable DB killer, link pipe, brackets and fittings.
GPR homologated the M3 Inox for noise. Riders should check whether their country requires a catalyst.
Common Questions
Is the GPR M3 Inox slip-on within the EPA emissions limit?
Yes, the GPR M3 Inox slip-on meets the EPA emissions limit, according to GPR. GPR homologated the M3 Inox for noise only, so riders should confirm the catalyst rules in their area.
Which KTM 390 Duke model years fit the M3 Inox?
Fitment for the M3 Inox covers the KTM 390 Duke from 2021 to 2023. The table shows the individual years.
Does the kit include the link pipe?
Yes. GPR supplies the link pipe, brackets and accessories in the package.
What warranty covers the GPR M3 Inox slip-on?
The GPR M3 Inox 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 KTM 390 Duke
