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nicktrx400ex
02-02-2006, 03:24 PM
Has any one tried the 400ex 426 kit. is it reliable and does it make a difference.
CHEVYZ
02-02-2006, 04:02 PM
Go to the 400ex forum. ALOT of guys have it in their bikes.
underpowered
02-02-2006, 05:32 PM
Big difference in power! mine has been together for about 1 and 1/2 years now and still running strong. the only problem i had was head gasket when i first put it together. Runs great. revs faster than a 440 but still has just about as much power.