Ordering was very easy online and customer service was amazing and beyond extremely helpful, it was so nice to have a company do a follow up. The hitlis kit was easy to install and works amazing, so happy with our purchase and was a pleasure to deal with. Thank you!

​I bought the Hitlis Kit about a month ago, installed it recentlly, and just took it out for a ride. The difference is amazing! The power curve is so much smoother and more manageable now, which is perfect for desert riding. I still have that punch of power when I need it in loose sand, but it's much easier to control.
​A huge thanks to Tim for all the support and quick responses. He even gave me advice on carburetor jettings and the head replacement. Looking forward to those upgrades! Highly recommended.

After installing the hitlis my yz250 has never felt so good. Huge shout out to Tim for all his help and recommendations along the way. It has truly transformed my yz. Thanks again!!

I wish I found the HITLIS sooner! I've loved the yz250 for as far back as I can remember and I've tried about every modification/upgrade available for these machines. This system knocks the rough edges off of the antiquated power delivery of the yz250. It remains the absolute animal the yz is known to be but more predictable, more versatile and overall more rideable in tighter trails. Trust me your bike needs the HITLIS! Also worth noting my order showed up with a hand written note thanking me for my purchase along with Tim's number offering answers for any question I may have about the system or install support. Tim offered suggestions on my build for the best results as well as tailored jetting for my build that was spot on from the first kick start! My bike is dialed and I couldn't be happier!

J’ai monté le kit désert taré à 0.8 sur une Fantic xx 250 accouplée à une ligne d’échappement DOMA racing , le résultat répond à mes attentes . Moto facile, puissance linéaire. Merci pour la conception de ce kit et les conseils. Au top ! Salutations de Suisse