JACK in NY
Used in all my 2 strokes kx250 yz250 ???? Great throttle response bottom- mid- top Excellent durability easy installation anything boyseen maks is a quality product
Read All ReviewsJohn in CA
I put this on my yz250 and when on the track I was blown away with the power and response. More low end and more over rev and crisp throttle response. I dropped the main jet one size to a 175 and pilot jet one size to a 48. It also has a pro circuit pipe...The bike feels like a whole new bike, jumps I had to click into 4th can be done easily in 3rd now with throttle to spair. If I could give it 10 stars I would.
Read All ReviewsRobert in IN
One of the best upgrades you can do to your bike. It will run cooler, make the clutch last longer, and give you peace of mind when riding hard on those hot days.
Read All ReviewsZack in UT
I highly recommend this product, very nice finish and black color.
Read All ReviewsFRANCIS in PR
Great performance! I bought this as a replacement for my cr250, performed very well.
Read All ReviewsJason in CA
Well made product. I'm not a good enough rider to tell if it made a real difference but I'm happy with the product.
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