what mod is best for more hp?

[jason43050]

what mod would give more horsepower for the cheapest amount of money? i already got a jet kit. i want a litle more hp. 2005 400 ex is my quad. its stock. except for the jet kit.

[WheelieMan4]

umm a pipe would help out alot...

[ride_red666]

an air filter, take off the airbox lid is free, exhaust pipe, rev box and a sparks timing key. a good set of tires will make it feel like it has more hp.

[04'400ex'er]

Full exhaust without a doubt.

[jason43050]

is this a good exhaust to get :LRD PRO4 SERIES FULL EXHAUST PIPE HMF HONDA 400EX ?

[400exstud]

LRD Pro4 and HMF are two different ones. They are both good but also loud.

[04'400ex'er]

I read a thread a week or so ago that changed my mind about LRD. people were welding brackets back on them and everything else. HMF is a good pipe though. Lots of people have them. Ill sell you one too!:D Also look into sparks and white bros.

[tar]

get a pipe air filter and a pipe/Sparks, LRD, HMF/ would be my choice

[prnstr4life]

i got a 170 jet with twin air filter, hmf slip on and no lid on airbox

[put-put]

hey get the pro circuit ti-4 slip on!!

[450Rchaser]

Check my signature. It's the way 2 go.

[xx3003xrdrxx]

suspension is going to make you faster than any motor mod ever will .:o