Pentacross Inox Exhausts

The GPR Pentacross Inox is a pentagonal-body stainless steel exhaust made in Italy by GPR Exhaust Systems. GPR cuts each Pentacross Inox for a specific bike and year range, so the brackets and mounts meet your stock hardware without modification. The range covers Trail and Off-Road, ATV, Road machines. Most fitments include a removable db killer. Every order ships free worldwide and carries a 2-year GPR manufacturer warranty.

✔ Authorized GPR Dealer | ✔ Made in Italy | ✔ 2-Year Manufacturer Warranty | ✔ Free Worldwide Shipping | ✔ Model-Specific Fitment

Shop GPR Pentacross Inox exhausts by motorcycle make

Pick your make to see the GPR Pentacross Inox fitments we build for it, then filter by model and year.

KTM Yamaha Kawasaki Honda

Can Am Gas Gas Husqvarna Kymco

GPR Pentacross Inox specs

Attribute	Value
Silencer Shape	Pentagonal, Round, Conical, oval
End Cap Finish	Brushed Stainless steel
Material	Stainless Steel
Manufactured In	Italy
Removable db Killer	Included on most fitments
System Types	Full System, Slip-On, Full System (Race)
Vehicle Types	Trail and Off-Road, ATV, Road
Model Years Covered	1980 to present
Warranty	2-year GPR manufacturer warranty

Which GPR Pentacross Inox system should you buy?

Each system type replaces a different amount of your stock exhaust.

System Type	Replaces	Best For
Full System	Headers, mid-pipe, and silencer	The biggest weight drop and the fullest tone change
Slip-On	Stock silencer only	A 20 to 30 minute bolt-on that changes the look and the tone
Full System (Race)	Everything, catalytic converter deleted	Track and closed-course use only

Compare the Pentacross Inox with the rest of the Pentacross family

The Pentacross name covers several finishes. These are the closest alternatives.

GPR Line	Silencer Shape	End Cap Finish
Pentacross Full Titanium	Pentagonal	Brushed Titanium
Pentacross Titanium	Pentagonal	Brushed Titanium

Frequently asked questions about GPR Pentacross Inox exhausts

What is the GPR Pentacross Inox exhaust?

The GPR Pentacross Inox is a pentagonal-body stainless steel performance exhaust made by GPR Exhaust Systems in Italy. GPR cuts each one for a specific bike and year range. It comes in Full System, Slip-On, Full System (Race) form.

How loud is the GPR Pentacross Inox?

The GPR Pentacross Inox runs louder than your stock exhaust and deeper in tone. Most fitments ship with a removable db killer, so you can drop the volume for street riding and pull it out for track days. GPR does not publish one dB figure for the line, because the number moves with the bike and the system type. Ask us about your model and we will tell you what we have on that fitment.

Will a GPR Pentacross Inox fit my bike?

GPR builds the Pentacross Inox for one bike and one year range at a time. Pick your make from the pills above, then filter by model and year. If your model is not listed, contact us before you rule it out. GPR adds fitments through the year, and we can check the Italian factory catalog directly.

Do I need an ECU remap or a tune?

Slip-on Pentacross Inox systems run on the stock ECU map on most bikes. Full systems that delete the catalytic converter often need a fueling adjustment to run right and protect the engine. GPR flags this on the affected products. Tell us your model and we will say which group yours falls into.

What warranty comes with a GPR Pentacross Inox?

Every GPR exhaust carries a 2-year manufacturer warranty against defects. GPR Exhausts Direct is an authorized GPR dealer, and our team files the claim with the Italian factory for you.

Can I run luggage on a bike with a GPR Pentacross Inox?

Yes, on most models. GPR builds its GPR Tech side cases and top cases in the same factory as the exhausts, so the mounting hardware clears GPR silencers on shared fitments. Check that your model appears in both collections, or send us your year, make, and model and we will confirm the clearance.