Hitliss is a must for the YZ! second year I have had plenty of hours to get a feel. 2006 YZ with X trans and GYTR flywheel. The wood version is great for trail and track. The lugability of the motor is unmatched! you can ride a gear high and always has power and traction. It is almost diesel like in power down load and mid range to top end is still stock YZ. Really transforms the motor and makes it a much needed updated to the YZ motor. If you are in doubt, just purchase! Thanks for a great product!

Really lets the bike stay low in the RPM and use the torque rather than jumping to 10k at half throttle. Tight woods with rocks and short steep hill climbs we're much more manageable than before. I don't feel like she's going to jump out from underneith me. Same goes for at the track.

Did exactly what i hoped it would! I am using it strictly for motocross (51yr old vet)..still has crisp two stroke respone, with a nice linear pull with no surprises! I have it set at .9 woods setting and will probably leave it right there..excellent product!

Great Product, makes riding theYZ much easier.
Thank you Tim.

I’ve ridden a lot more sleds than bikes, so my comparison after adding the HITLIS system to my 250X is reminiscent of going from an old 800 on to a new 850… you giggle every time you get on the throttle until it becomes normal. It also means the difference between thinking I can make a climb and knowing I can… hope that makes sense, but you can feel the harder pull through the power band in your legs and upper torso with the HITLIS and when Im carrying momentum into a climb I know it’s going to go, not try and hope… Tim was involved in the process from the time I ordered it through now… even down to the hand signed note with his phone number offering help if I need it at any step in the process… there’s not many businesses that I’ve purchased from that offer customer support on this level… huge comfort for me… very detailed video(s) outlining the installation and verification that the HITLIS functions appropriately before I fired up my bike… now I can only hope Tim decides to re-engineer the YZ125 powervalve so I can buy one… or he brews up another must have for the 250X… either way… well engineered product that should be on every 250X

Hunter McC
Anchorage AK