Gori GP exhaust with conical section manifold, guarantees more revs, it is recommended for mid/high revs power.
This box is available with manifold for the following engines: SS200, SS225, SS250, TS1 200, TS1 225, Monza
ATTENTION!!! IN SOME S1 AND S2 MODELS the exhasut can touch the splash plate of the stand, in this case have to be removed.