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especially when paired with a Mivv slip-on silencer
All available maps in the App have been accurately prepped on the dyno and fine-tuned on track/street using complete data logging systems
piston pin
with weight savings and optimized exhaust flow
this bundle delivers more power
Piston stock bore Kit "RACING" by GRT 660cc 81mm Yamaha especially when paired with aProduct Description This kit includes two high performance racing pistons with an 81 mm bore, manufactured from forged aluminium for enhanced strength and durability. Featuring an increased compression ratio of 14. 2: 1 (compared to the standard 13. 5: 1), these pistons require the use of at least 100 octane fuel (EU specification). Compatibility & Intended Use Designed for the Aprilia RS660 (20212026) and Tuono 660 models, this is a race oriented
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