GPR Furore-X Inox exhausts in oval 304 stainless steel, with kits for bikes back to 1983

The Furore-X Inox in numbers

On a slip-on kit, this silencer (muffler) replaces the stock one, and a DB killer (baffle) that lifts out comes in the box. Every value below comes from the product listings.

Detail	Listed value
Silencer	Furore-X Inox, made by GPR Exhaust Systems
Body	Oval shell of 304 stainless steel, 0.8 mm sheet, around an inner barrel of perforated stainless steel
End caps	Tapered 304 stainless steel with a satin finish
Cross-section	Oval, 130 by 90 mm
Weight	5.51 lbs (2.5 kg) is the norm; a few kits list 1.5 kg to 1.75 kg (3.31 lbs to 3.86 lbs)
DB killer	Removable and in the box nearly every time; Race versions mostly leave it out
Kit formats	Slip-on and dual slip-on (link pipes included), mid full system, full system
Oldest bikes	Yamaha TT 600 from 1983; Honda XL600LM XL600RM, Kawasaki KLR600 and Suzuki DR 600 from 1985

Furore-X Inox beside the other Furore-X silencers

• Your bike predates 2019, or needs more than a slip-on. Stay on this page. The Furore-X Acciaio Inox, Furore-X Titanio and Furore-X Titanio Nero list slip-ons for bikes from 2019.
• You want the same steel on a recent bike. The Acciaio Inox listings show an identical 304 stainless steel body, tapered satin caps and 90 by 130 mm oval, in slip-on form only.
• You want less weight. Both titanium Furore-X lines list 1.4 kg on most kits, against 2.5 kg here, a gap of 1.1 kg (2.4 lbs).
• You ride a scooter. The Furore-X Scooter line has a 304 stainless steel oval of 100 by 130 mm, mostly as full systems.

Unless grams decide the purchase, this page is the better fit. No other Furore-X line lists dual slip-ons or mid full systems, and brushed steel looks right beside stainless fasteners and frame hardware.

Which Furore-X Inox kit replaces what

Kit	Comes off the bike	Bikes in the line
Slip-on	The stock silencer	Yamaha R6, BMW R1200GS - Adventure, KTM 790 Adventure, Honda CB500F, Kawasaki Versys 1000
Dual slip-on	Both stock silencers	Kawasaki ZX14R, BMW K1600GTL, Yamaha FJR1300, Suzuki Hayabusa, Ducati Monster 900
Mid full system	Stock mid pipe, silencer	Suzuki V-Strom 650, Yamaha R1, Husqvarna TE610E SM610
Full system	The entire stock exhaust	Yamaha FZ7 MT07, Kawasaki Versys 650, Honda CB650F, Yamaha Tracer 9 GT

• High Level and Low Level in a title give the mounting position. Triumph Speed Triple 1050 slip-ons are Low Level; Yamaha R6 slip-ons and Ducati Monster dual slip-ons are High Level.
• Race versions exist for the Yamaha R6, KTM RC 390 and Suzuki GSXR 750, among others.
• The Can Am Spyder RT1000 has a slip-on in this line.

Emissions groups, DB killers and Race kits

Listings sort kits into three emissions groups. Some meet the EPA emissions limit, some do not, and some have no EPA/CARB certification at all. Slip-ons and dual slip-ons fill the first group, while no full system or mid full system appears in it.

Standard kits keep the DB killer in the outlet, and you can pull it out. Race versions work differently: most come without a DB killer or a catalyst, and GPR warns that a racing exhaust can need an ECU remap. For all other kits, confirm local catalyst rules.

Furore-X Inox kits by make

The order follows the number of Furore-X Inox kits per make. Each name opens its whole GPR catalog; add a model and a year to narrow it down.

Largest ranges:

• Honda
• KTM
• Yamaha
• Kawasaki
• BMW
• Ducati
• Suzuki

Mid-sized ranges:

• Husqvarna
• Triumph
• Aprilia
• Moto Guzzi
• CF Moto
• Voge
• Benelli

Small ranges, some with a single model:

• Beta
• Husaberg
• MV Agusta
• Can Am
• Cagiva
• Derbi
• Moto Morini
• SWM
• Rieju
• MZ
• Hero
• Gas Gas
• Loncin

Other GPR lines worth a look:

• Hyper Sonic Inox
• Furore Nero
• Pentacross Inox
• Dual Inox

Furore-X Inox answers

What is the oldest bike with a Furore-X Inox kit?

The Yamaha TT 600, with kits from 1983. The Honda XL600LM XL600RM, Kawasaki KLR600 and Suzuki DR 600 start in 1985.

Is this the same silencer as the Furore-X Acciaio Inox?

The listings give both an identical 304 stainless steel body, tapered satin end caps and 90 by 130 mm oval. The Acciaio Inox is slip-on only and starts in 2019, while this line adds dual slip-ons, mid and full systems, and older models.

Which Ducati models take a dual slip-on?

Monster 600, 750, 900 and 1000, the 750 and 900 Supersport SS, and the ST2, ST3 and ST4. Each listing names its model years.

What do High Level and Low Level mean in a title?

The silencer's mounting position. A Triumph Speed Triple 1050 slip-on is Low Level, and the Yamaha R6 slip-on is High Level.

Does the Furore-X Inox come as a Race version?

Yes, for bikes such as the Yamaha R6, KTM RC 390 and Suzuki GSXR 750. Most Race listings leave out the DB killer and the catalyst.

How much does a Furore-X Inox weigh?

Almost every listing says 5.51 lbs (2.5 kg). A few slip-ons and full systems list 1.5 kg to 1.75 kg (3.31 lbs to 3.86 lbs).

Is there a Furore-X Inox for the Can Am Spyder?

Yes: slip-ons for the Spyder RT1000, RS1000, 1000GS, 1000Rs and 1000St.

What you get when you order the Furore-X Inox here