exhaust restrictor plate for -101 OCTANE- Aprilia, Beta, Derbi, Rieju speciale

Throttle plate for exhaust manifold. After performance optimizations have been carried out, it may be necessary to return the exhaust system to its factory condition. With this throttle plate, the original performance condition can be restored and the exhaust system receives its road approval again, provided that no other additional performance modifying measures have been carried out.
Only suitable for original manifolds with 52mm hole spacing. Suitable for Aprilia, Beta, Derbi and Rieju vehicles.AI-translation