www.highlifter.com
Click on PRODUCTS - SHOP NOW - Scroll down and click on PERFORMANCE - CLUTCH KITS - OUTLAW CLUTCH KITS click on MORE INFO - HONDA OUTLAW CLUTCH KIT click on MORE INFO - Scroll down to Outlaw Super-Duty Clutch Kit - Honda Foreman 400 (97-03), Foreman 450 (98-04) and Click on MORE INFO
This is the best Clutch Kit on the market. I wish I had gotten it but the EPI I have is fine. The Highlifter Outlaw CLutch Kit was designed by EPI and Highlifter together. The would be a good site to get other upgrades too. Their Performance Kits are awesome and priced well too.
You can call 1-800-699-0947 or (318) 524-2270 to talk to some one direct for advice on upgrades and details on the parts. I always talk to Damon Blue, he is very knowledgale on Hondas.
If you need any other help or advice, feel free to pm me.