I'm giving serious consideration to purchasing a new AC 400 4X4. Haven't decided yet whether to go auto or manual, though.

I've been looking on the web and in the atv mags for exhaust and wheel upgrades but I haven't been able to find anything for the AC's. Does anybody know if there are any aftermarket exhausts and alloy's available? (I'm not even sure what the wheel bolt pattern is at this point).

 

I am not sure for exaust upgrades, but my dad just got his 04 400 4x4 with an ITP Bigfoot kit with the aluminum wheels. I will try and get some pics sometime this week.

 

supertrapp makes an IDS2 pipe for a 98-2001 500 but it will fit any 500 or 400 cat (unless the 400 has the nnew motor (went to this in 2003)).

 

my buddy just got a ac 400 auto and he loves it exspeshally the 12 inch clearance but it is a bit harder on gas than my ac 300 hope that helps you out

 

Thats the only downside to cat. There are not very many upgrades for it. For pipes its the supertrapp or the white bros "E" Series. The bolt pattern is still 4X115. I think ITP still makes some wheels.