Scorpion Discreet Stainless Exhaust – Aprilia RS4 125


Not EC ApprovedAprilia’s RS4 125 is a very capable 125cc machine. Scorpion exhausts development engineers decided they could improve it and have developed this discrete style silencer. The silencer and tailpipe are available in a stainless finish only. Developed to use the bikes original fuelling settings the exhaust not only makes the bike look and sound better but also improves the power delivery and reduces the weight.

Fitting Instructions

Expected power gain vs. original exhaust:
Motorcycle ModelIncrease (BHP)Aprilia RS4 1251.6


Scorpion exhausts have been helping to win motorsport championships for over 20 years, consistently beating teams heavily supported by rival exhaust manufacturers. Those who follow motorsport, will most likely have seen the Scorpion support team in attendance at a huge range of motorcycle, and four wheel series, often without even knowing it. Their involvement in bike racing has always been strictly for development, not promotional purposes. As Scorpion moves into a new era, the intention is to adopt a higher profile with their motorsport program, providing the most relevant development environment to allow true technology transfer from track to road. In particular they intend to build on successes in the BTCC, Porsche Cup, VW Racing Cup, World Endurance, Time Attack and Superbike; plus off road sport including Rally, MX and Supermoto.


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