This is a basic mod that helps throttle response significantly! In addition to Dave's Mod many other people also buy a UNI air filter, install a new exhaust, and desnorkel their bike. In total this cost me $14 rather than the dynojet kits which are significantly more $$$. In my case, I have a UNI air filter and bought an XR's Only Header & Exhaust following this mod I did. If you have any questions- put them in the comments below, and I'll be glad to answer them! Thank you again for all your support.

Written Guide Link:
https://www.jetsrus.com/FAQs/FAQ_jett...

Where to buy Jets:
https://www.jetsrus.com/a_jet_kit_dir...

Needle Shim:
#4 Washer from Home Depot is what I used