hey guys i currently have a 98 formula A4 with Mac midlength headers, ORY pipe,3" cutout, SLP lid, Bellow, K&N filter, Frost Tune, 315 dr's, MSD ignition,

NOW..... im looking to get a 3600 stall and tranny cooler, a little worried cause of the stock rearend with the stock 273 gears, the car currently has 43,000 miles on it and rearend is in great condition lol dont wanna ruin that.

i was wondering what you guys think as far as doing that and also which brand and where to get the stall and cooler from ?

any suggestions, or things you guys have done would be awsome please chime in! thanks