Originally Posted by Scrambler82
What does the “Y” Pipe do for the 4.0 ?
Is the “Y” Pipe any better than an “H” Pipe ?
Sorry to turn this to a tech shout but just wondered !
"Y pipe" is the factory pipe after the two exhaust manifolds. It's what brings the two into one at the bottom of the trans.
Gives nothing as it's just a term for the stock piece. It's not anaftermarket "X" or "H" pipe.