Exhaust muffler Royal Enfield Bullet 500 i.e. Trials E4 Mass Classic

Mass Classic exhaust muffler with bottle shape: designed with specific shapes and sizes for each motorcycle model. These slip-on exhaust ends can be installed without modification: compatible with both original exhaust manifolds and aftermarket Mass or other brand manifolds designed for original mufflers. Each Mass exhaust end cap is dyno tested on the model of motorcycle for which it is manufactured: increased power and torque, improved acceleration, and reduced weight and gasoline consumption. Installation of this exhaust system does not require remapping the original ECU or even the use of additional ECUs such as Dynojet or the Rapid Bike. Classic bottle shape, typical of British motorcycles, with a soundproofing system inside consisting of perforated reeds wrapped in soundproofing material: handcrafted in stainless steel with special attention to the quality of materials and details in the welds to ensure maximum reliability and durability! Quick and easy assembly without modification: complete kit with all components for assembly and Homologation certificate for road circulation.

Final features of Mass exhaust:

• model: Classic bottle-shaped
• material: stainless steel
• finish of your choice
• removable db-killer
• European homologation

NOTE: Installation of these exhaust ends does not require remapping the ECU.