[brandonpeake]

im going to open my airbox up some like in the pic below

and i want to get the full benefit, so which kit do you guys run the one from sparks and the dynojet are the only 2 i know about besides the hrc kit and i dont want that cam , i like the benefit of the keihin jets being avaible everywhere and the adjustibility factor of them coming in just about any size over the few dynojet send you
just wanted some other input

 

[TRX450rlude]

I have sparks jet kit and air filter....I like them very much. The filter seems to be very durable...I have washed it several times and it still looks brand new.....

 

[lukester720]

I too have the sparks and like it very much. the needle that comes with it is the hrc needle, and I'm sure sparks went with it because its probablt the best for this application. Back when i just had my pipe i noticed an increase in power just by installing the jet kit.