OTR-Performance Webshop - Enduro, Travel- and Rally-Equipment for Yamaha and other motorbikes.
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Complete Racing Power kit , preadjusted set special made for the XT-660 R/X.
The stage 2 kit has more power, but also the intake sound will become more agressive. In combination with a good exhaust system, you will have up to 8 hp plus
We offer two different stages:
Es sind zwei Stufen verfügbar:
Stufe I
- OTR Racing air box cover
- Power Commander USBIII
- K&N Racing air filter


Stufe II
- DNA Racing air box cover
- Power Commander USBIII
- K&N Racing air filter


For street and every day use (also in bad weather!) we recommend the Stage II set, if you do a lot of off-road riding, we recommend Stage I.
OTR-Performance Webshop - Enduro, Travel- and Rally-Equipment for Yamaha and other motorbikes.