hey, i need any information on an exhaust that will take me up to 1800ft in altitude in utah and down at almost sea level at the dunes and in the desert! the only prob is that i dont want to have to rejet it all of the time so if someone could give a any suggestions and maybe a link to a page where i can see the exhaust and its specs. that would be phenomonal! i am riding a 400ex so i need any GOOD suggestions! thx

 

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HEY MAN THERES NOT REALLY A WEB SITE THAT YOU CAN GO TO FOR YOUR ANSWER IF SO THEN WRITE TO ME BACK BUT ANY PIPE THAT YOU GET AND YOU GO PLACE TO PLACE YOUR GOING TO JET IT UP BUT I KNOW ITS A BITCH TO DO THAT CUZ I LIVE OUT HERE IN SO-CAL CAN MY 400 RUN PERFECT THEN WHEN I GOT TO GLAMIS MY 400 BOGGS LIKE CRAZY THE LAST 2 GEARS BUT I DUNNO THERE NOT A PASIFIC PIPE THAT I RECALL OK
PEACR

 

An 1,800 ft altitude change is nothing..........you won't even notice a change!

Our Sierra rides normally start down in the desert valley, then from there go up to over 10,000 ft. I use a TPI valve (http://www.thunderproducts.com/tpi_valve.htm) in the airbox lid and open it to let in more air as I ascend. A kind of crude rejet, just instead of decreasing the fuel I am increasing the air. Works pretty well. But frankly, for a mere 1,800 ft I wouldn't even bother with that.

 

hey thx man i really need to get a new exhaust or a ghettorig way to make an exhaust work at dumont and at utah but thx for the advice guys!