Front Decatalyzer / Exhaust Pipe + Gasket – BSA Goldstar 650

Front Decatalyzer / Exhaust Pipe + Gasket – BSA Goldstar 650

Euro 5 compatibility:
Suitable for Euro 5 models of the BSA Goldstar 650.
Not compatible with Euro 5+ models (from late 2025) equipped with an additional O2 sensor before the catalyst.

This product corresponds only to the front pipe intended to be used exclusively with the original silencer. A complete exhaust system is also available separately.

Specifications:
• Front pipe made of 304 stainless steel
• Shape designed to follow the engine lines and fill the space left by the catalyst
• Direct connection to the original silencer
• Stainless steel joint covers included

Contents:
• 1 decatalyzed stainless steel front pipe
• 1 cylinder head gasket → front pipe
• 1 stainless steel exhaust clamp
• 1 stainless steel joint cover + clamp

Silencer compatibility:
• Usable only with the original BSA silencer

Sound:
• Slight increase in sound volume, as the flow no longer passes through the catalyst
• Removing the baffle: significantly increases volume (not recommended)
• Compatible with a hi-flow baffle for a more balanced sound

Advantages:
• Reduced weight compared to the original pipe
• Cooler operation thanks to the removal of the catalyst located under the engine
• Simple installation, no need to reprogram the ECU