- MOUNTAIN TIME
- ¡Hablamos español!
dirt bike fuel and air intake systems
Displaying parts for your 2001 KTM 520 SX 4 Stroke
Dirt Bike Fuel and Air Intake Systems
Increase your horsepower and open your motorcycle up to a higher performance level. We have intake parts to increase your machines throttle response and overall performance.
Latest Fuel and Air Intake Systems Reviews – You could win up to $500 for reviewing products!
Boyesen Rad Valve
John in CA
The best upgrade
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 Reviews
Helix Racing Products Fuel Line
Bradley in TN
Great fuel line
Bought just to have some replacement. have used some and it works great no complaints.
Read All Reviews
V-Force 3 Reed Valve
Cole in AB
Cr 85
Bikes actually rideable in the low end now, this and other mods helped a ton.
Read All Reviews
V-Force 3 Replacement Reeds
Bradley in TN
Great reeds
Great reeds. fit great. just a great overall product I will order over and over again
Read All Reviews
Tusk Carburetor Vent Line
Matthew in MD
Good Option
Worked well to replace vent lines on carburetor rebuild for 2006 KX450F. The red color is truly red - not the clearish pink you might see on some bikes.
Read All Reviews
JD Jetting Jet Kit
John in IL
Improved throttle
Easy to install, great instructions with recommended jetting for mods. Adds a nice pep and better throttle response. Drz400.
Read All Reviews
