GPR Exhaust Systems Pentacross Inox Full Line System CRF 450 R 21-22 With dB Killer FIM Homologated

Compatible models:

Honda CRF 450 R 21-22.

GPR Exhaust System Honda Crf 450 R 2021/2022 Mx competition full line Pentacross Inox.

For installation, no structural modifications to the motorcycle are required for use of the product in an approved version.

It is recommended to read the instructions in the package.

The exhaust has a removable dbkiller (noise restrictor) for racing use, remove the dbkiller is not ONLY illegal, but the customer assumes the responsibility to use the motorbike as on the circuits only, without bags, without flash light and 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 devolution to GPR factory or nearest official distributor at client expenses.

GPR cannot provide a new silencer instead of the one to repair, the client has to accept to remount the original exhaust or wait the standard time for the reparation.

Features:

Complete RACING system for track use made in respect to FIM homologation limits, the kit consists of manifold with ULTRABOMB expansion and new PENTACROSS silencers line.

Manifold and silencers are made of 304 stainless steel, average performance increase of 2cv, significant reduction in weight, developed thanks to the collaboration with the MXGP team.

Manifold:

The 304 stainless steel manifold is supplied, including flanges, bushings and relative kit of brackets, the complete GPR mounts directly on the cylinders without making structural changes.

Original GPR product, developed thanks to a long experience in World Motorbikes Championship, propose an innovative design, performance increase, relevant weight saving and a motorbike sound tone improvement.

RACING PRODUCT:

This item is sold only for RACING use in circuits! The use on the road in the open version does not comply with the regulations governing circulation on the public road network.

NO DBKILLER:

being a racing product, neither dbkillers for noise nor catalysts are supplied, this is a 100% sporty item.

The use of racing items may require in some cases the remapping of the ECU, especially in the presence of further modifications such as the installation of a sports filter.

Mounting recommendations:

GPR products are plug and play, it is recommended to install the products in a professional workshop, no complaints will be accepted in case of DIY installations.

If you buy online, it is recommended to buy the product from a seller in YOUR NATION 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.


Many bikes are equipped with an exhaust valve controlled by a servo motor. When making performance changes involving the replacement of the exhaust or the installation of an additional control unit, it is necessary the elimination of the exhaust valve.

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