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Exhaust› Exhaust Pipes, Systems and Components

Polini

Evolution Racing Exhaust System

Name: Evolution Racing Exhaust System
Brand: Polini
SKU: 200.0405

$434.73

SKU: 200.0405

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Non-Returnable Item

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Moderate — 2–4 hours

Overview

The Polini Evolution exhaust is a racing exhaust system designed for motorcycles with Derbi, Beta, and Rieju engines, specifically those with Derbi or AM6 transmissions. This exhaust is optimized for use with racing cylinder kits up to 80cc, providing enhanced performance for competition.

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The Polini Evolution exhaust is a high-performance exhaust system designed for motorcycles equipped with Derbi or AM6 engines. This under-pipe exhaust, model 200.0405, is part of Polini's Evolution line and is crafted to maximize the expansion cone's dimensions for optimal performance. It is intended for use with original 50cc engines as well as modified engines up to 80cc, making it exclusively suitable for competition use. The exhaust system includes all necessary mounting hardware, such as a motor support, clamp, silencer, nozzle, and screws. The silencer features a black anodized aluminum construction and a round shape, secured by three screws. It is important to note that this exhaust is not homologated for road use. Compatibility is extensive, including various Aprilia RS 50 (2006-), RS4 50, SX 50, and RX 50 models with DERBI D50B engines. It also fits Beta RR 50 Enduro, Motard, and SM models with AM6 engines, as well as Derbi GPR 50 Racing (2006-), Senda 50 DRD/SM (2006-) with DERBI D50B engines. Gilera RCR 50 and SMT (2006-) with DERBI D50B, Malaguti XSM 50 and XTM 50 with Minarelli AM6, Rieju MRT, MRX, MRT Supermotard, SMX, and Tango with AM6 engines, Yamaha DT 50 R and DT 50 SM with AM6 engines, and Vent Derapage 50 with Minarelli AM6 Euro4/5 engines are also compatible.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

Brand	Polini
Part Number	200.0405
Category	Exhaust

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

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