hi there

i want to ask for the best pipe by sound and power full system exhaust

and the best air filter
( are the air filter for the yzf 450 have many size or it is one size ? )
if there is many size for air filter and i will take the big one do i must change some thing when i install bigger air filter or only install bigger air filter with out changing any thing only the big air filter.

if i want to incress my top speed what i must do
put the bigger size for the front sprocket and smaller size for the rear sprocket
or
put the bigger size for the rear sprocket and smaller size for the front sprocket

all for YAMAHA YFZ 450

thank you guys[img]i/expressions/rose.gif[/img][img]i/expressions/sun.gif[/img][img]i/expressions/face-icon-small-smile.gif[/img]

 

On the filter/intake set-up I like the Fuel Customs Intake with K&N set up for the 450's

There are lots of good pipes. Buddy has a full HMF and it gave good gains and has a good sound. It is on the loud side though.

On gearing

bigger in front more topend

smaller in back more top end.

 

thank you bberck
but some guys say the sparks is the best sound and best power other say the pules charger for more power and best sound

are you sure about the HMF ?

 

Didnt say it was the best just it was a good pipe. Ive heard the sparks is good to, there are so many pipes its hard to say whats the best but maybe some 450 guys can help more on the pipe.

 

thank you very much bberck

 

Curtis Sparks pipes do add good power gains and sound great. They are loud, so noise can't be an issue. But I still to this day have not heard a better sounding 4 stroke pipe than the Sparks.

 

thank you raptor450 very much for your tip

 

I like Barkers exhaust ( yes they make more than raptor exhaust). If you have not done the cam mod GET TO IT! That along with a rejet w/proper tuning will make a huge gain.

 

thank you but do you have any link for video or audio to lisn for the sound of this exhaust??

 

i've got rossier exhaust on mine full system and it sounds sweet.... loud though and awesome power gain. put a pro-flow intake on too simple and works great also....guys at rossier where great help they will send you the full pipe air intake and jets for a decent price and you won't be disappointed......if you search sounds of atv exhaust you'll find some thing........also do the cam change if you want more top end.......later joe