DESCRIPTION: 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 SILENCER TYPE: Pentacross Inox TYPE: Full system including removable db killer/spark arrestor REMOVABLE DB KILLER: Yes CATALYST?: No SILENCER LENGTH IN INCHES: 13.78 SILENCER SHAPE: Polygonal WEIGHT (lbs): 4.4092 BODY COLOR: Brushed Stainless steel ENDCAPS COLOR: Brushed Stainless steel FULL DESCRIPTION: Full system exhaust, including removable db killer/spark arrestor GPR supplies a 304 stainless steel manifold. The package includes flanges, bushings, brackets. It mounts directly on the cylinders without any structural changes. 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 or the tutorials visible on www.gpr.it and on youtube. For on-line purchases it is necessary to activate the warranty by sending the special coupon stamped by the installation workshop via our email, for purchases at physical stores the shop stamp is sufficient. The exhaust has a removable db killer (noise restrictor) for racing use, remove the db killer 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. 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 catalyst. 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.