GPR Exhaust – Yamaha YZ 450 FX 2019

To install, no structural modifications are required. GPR recommends reading the included instructions or tutorial on http://www.gpr.it or the GPR channel on Youtube.

For on-line purchases, activate the warranty by sending the installation receipt from the mechanic / shop via email to certificato@gpr.it, or sending the sales receipt from the physical or online store.

The exhaust has a removable db killer (noise restrictor) for racing use. Removing the DB Killer is ILLEGAL and the customer assumes the responsibility if they use the motorbike as on the circuits only, without bags, without flash lights, number plate holder or other parts that would conflict with the different angle of the gas following the transformation into the racing version. Abuse of this situation on the road will result in the loss of the product warranty and any refund request will be rejected.

The warranty is two years from the purchase, with right of reparation with a return to the GPR factory, or the nearest official distributor at the customer's expense.

GPR will not provide a new silencer, but will repair the original silencer. The customer must accept to remount the original exhaust or wait the standard time for the repair.

The manifold is made of titanium. The package includes flanges, bushings, brackets. It mounts directly on the cylinders without any structural changes.

This is an original GPR product, developed after GPR's experience in the World Championship. It offers an innovative design, improved performance, weight savings and a full-bodied sound.

Made in Italy with a 2-year international warranty.

RACING PRODUCT: This exhaust is supplied with a removable DB Killer. However, it is a RACING product and is not legal for road use.

This kit does not include a Removable catalytic converter.

In some cases, the use of racing items may require the remapping of the ECU, especially when there are additional modifications, such as the installation of a sports filter.

GPR Products are plug-and-play. However, we do recommend a professional installation.

If you buy online from a seller that is NOT GPR, we recommend you buy from a seller in YOUR COUNTRY to ensure that the item arrives with the correct approvals that must also comply with local legislation. Make sure before purchasing that the seller is trustworthy and offers the items for your road network. 

Silencer Type Description

This is a GPR's FULL TITANIUM complete racing system for track use developed in collaboration with the best MXGP teams. The kit consists of a manifold with Ultrabomb expansion and new Pentacross silencers. The manifold and silencers are titanium made, this system produces an average performance increase of 2cv.

FEATURES
• SOUND: Upgraded sound from stock exhaust
• PERFORMANCE: Upgraded performance from stock exhaust
• QUALITY: Italian made with high-grade welding
• WEIGHT: Significant reduction in weight
• PERFORMANCE: Average performance increase of 2 cv
• PERFORMANCE: Average performance increase of 2 cv

• System Type Full system
• Silencer Type Pentacross FULL Titanium
• Silencer Shape Pentagonal
• Homologation Full system including removable db killer/spark arrestor
• Body Colour Brushed Titanium
• Endcaps Colour Brushed Titanium
• DB Killer Tampering with the dbkiller and the related welds/safety screws violates the conformity of the product and makes it illegal for road use.
• Road Legal No
• Weight 1.5 kg / 3.3069 lbs
• Silencer Length 350 mm mm / 13.7795275590551"
• Environmental Cert OK
• Catalyst Removable No, as it is not necessary for the product category
• DB Limit No, but this limit is required only for local citizens and not for tourists.
• Production Time Consult the website

• User Manual
• ISO 14021 Certificate

Compatible Models

Delivery Information

Standard UK delivery: Free
Highlands and Islands: £12.00
EU Countries: Free
Rest of Europe: £15.00
Rest of World: £75.00

All GPR exhausts are hand made to order in their Milan factory. Delivery times vary on a seasonal basis and can be affected by material availability and other factors beyond our control. Full systems will nearly always take longer than slip-on options and in most cases will take 4-8 weeks to get to you. Most slip-ons will take 2-6 weeks. If you need something faster that this timescale then please contact us prior to ordering and we will get the very latest information from the factory. But please note, that information will only be accurate for a day or two.

Returns Policy

We offer a 30-day returns policy on all unused products in original packaging. Custom or special order items may not be eligible for return.