Mivv Str-1 Steel Approved Slip On Crf 450 2021

NOTE: The test bench values refer to the silencer + racing manifold configuration. Noise: 114 db

Built with the best possible layout to adapt to the spaces available on the motorcycle, the Mivv STR-1 exhaust has been designed to guarantee the best performance, reliability and weight reduction.

The exhaust is made of AISI 304 stainless steel and features a 3k twill carbon end cap and is equipped with a special DB-Killer optimized to reduce noise without penalizing performance.

The STR-1 exhaust has been designed so that the engine can express its best throughout the entire engine rpm range. The bench tests and then also confirmed by the track tests highlight excellent performance at both low and high rpm.

The STR-1 exhaust is equipped with latest generation sound-absorbing materials, developed by our R&D department, and allows compliance with the increasingly stringent noise limits imposed by national and international regulations for off-road competitions. The sound-absorbing material is easily replaceable thanks to the presence of screws located in the front part of the exhaust which facilitate this operation.

The Mivv STR-1 exhaust does not require remapping. The development was done without making any changes to the electronics. It is interchangeable with the stock silencer.

This product can only be used for track use and closed courses. It was designed to adapt to a standard equipped motorcycle, as delivered by the parent company.