Originally posted by Terry Haines:
The stock Y pipe is insulated for that reason,early tests on CDW showed high oil temps but as most pople wont fit an oill temp gage or fit it in the wrong place, they never know,50% of this engines cooling is via the oil.The Modine style cooler is not enough when you mod the motor,in the worse case an oil/air extra cooler is needed with an oilstat..... 
and I always thought it was insulated to get the cat up to temp quicker
Terry, What's your feeling on the stock Y pipe, it sounds like you change it at your peril?
