i'm looking for a good slip on silencer for a 2000 400ex. i was checking out some on ebay and i noticed there was a used pro circuit t4 and the piece that clamps to the pipe was a little rusted like it was not aluminum, or stainless like the rest of the silencer. i'd like to have one thats all stainless or aluminum so it doesn't rust thru from condensation laying in that spot after the bike cools just like the stocker did. also what jet should i use. the bike has no other mods other than a k&n air filter.

 

i have the yoshimura R3 comp on my 2001 400ex and i love it i got big gains from it and ive had it for about 3 months now and no rust at all

 

i put a DMC afterburner on mine, i noticed a big increase in power. I didnt have to re-jet either (i have a 2006 honda 400ex)

 

i have a DG race exhaust on mine and havent had any problems and love it.

 

I have a White Bros. slip-on on mine right now and it makes alot better power then stock (as long as it's jetted properly). I'm trying to sell it to get a full system. PM me if you're interested!