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carbon-fiber "slash-cut" end cap
ECU racing re-mapping tool (including 4 maps) by XECU for Yamaha R1 (16/19)
Stainless steel TIG welded collector pipes' diameters and lengths have been designed to optimize and improve torque output without any additional ECU or need to remap
Extreme sound
To compensate for the lower internal volume
ARROW 71755MI+71929AK Aprilia Tuono 660 (2021+) Aluminum Full Exhaust System "Competition Evo Indy Race" (racing) Fluid Tanks Caps carbon-fiber "slash-cut" end capFull exhaust system "Competition Evo Indy Race" for APRILIA TUONO 660 by ARROW. Indi Race is the line developed by Arrow for more particular applications such as under saddles where the installation of a standard exhaust is complex. Its new shape recalls the curves of some tracks of the Indy formula championships, hence the inspiration for the name of this very exclusive line. The squashing and maintenance of a good internal volume in the exhaust
