i just recently bought a 06 kawi kfx400, its bone stock and i want a kick *** exhaust slip on. ive been looking at a fmf powercore 4, but i havnt desided if its the best one

help?

 

do you want poower or noise?
power? uni or KN airfilters and a dynojet kit.. you are really just buying the needles, as that's what you run on, 85% of the time.about 1/2 the cost of a pipe and can, and at least as much power

add an inline fuel filter

 

well acctually i guess i dont have a stock bike because i bought a uni filter and havent put it on yet i didnt think it would be a power increase, i just bought it so when the current one screws up. but a dynojet kit. i have little info on what that is . i really just wanted to get a nice slip-on and make the bike sound more intimidating

 

you'll get more torque from the filter, and more throttle response and power from the dynojet kit.

the exhaust is like the kids with dinky motored import cars and "fart cans" rigged up on them ..not worth the money

 

hahaah hell yeah i hear yah american muscle all the way, and i think ill look into that dynojet kit you speak of, is it a hard instalation? am i going to have to take it to a shop?

 

Its not hard, just intimadating.. basically, its pulling the carb, doing 10 mins of work, and putting the carb back in. if you have ever rebuilt a carb, its easy.

if you haven't, i DO suggest you find a local guy, give him a 50, and ask him to TEACH you how to do this. Generally, I'll teach/show anyone how to maintain their bikes, but I aint a pro, just practiced

 

oh yeah i have no fear of taking carbs out. my father and i do it alot with these damn 2 strokes we got

 

Actually jeffeosso, the Z400/KFX/DVX has a very restricitve stock silencer, you will see a very noticeable power increase even with a 'quiet' type slip on. Yes, it will be louder than stock, but still well within legal dB limits. Kawibeatshonda, with your UNI, rejet, and a slip on , you will see a nice increase in bottom end, and a bit more top end wind out, with the easier breathing. Yoshimura makes a good slip on, FMF is always a good choice, just look for the 'trail' or 'quiet core' types, and you will not get rocks thrown at you by angry hikers.

 

95wolv
I didn't say he wouldn't see an increase in power by $$$$pending on exhaust, I said he would have more bang for the buck in changing the filter, jets, and needle (dynopack).
Lets face it, uni filter and dynopack is what, 100 bucks delivered and a FULL PIPE is closer to what, 350/400 when you take shipping into it?

a slip on? sure,it sounds better, but without rejetting and a good airfilter, it won't gain MUCH, as the pipe is still there.

 

yeah well what it i buy a fmf powercore4 slip on and i add this uni filter. am i going to NEED a jet kit? whats yalls oppinion on this slip on?loud?