A different kind of performance question

[03ddie]

So I was thinking of doing a cat back 3" exhaust system until I looked at the stock system. Has anyone else noticed that the part where the left and right pipes meet are EXTREMELY restrictive. I mean the pipe is more than crimped in half. It looks like a cresent. Has anyone had this joint replaced with a better engineered piece? In my opinion this would help more that going from a 2.75" tube to a 3" tube. Of course I would still go with a new muffler, like a flowmaster or something.

 

[pronstar]

The stock y-pipe is very restricitve. Cut it open and you'll see how it chokes-down even more inside.

Replace it with an aftermarket one. When I had a single-exhaust setup, I had a Magnaflow y-pipe on there. It cost about $30, and is really simple/cheap for a shop to install.

IMHO if you put a cat-back on your truck, a new y-pipe should be mandatory.

 

[green03]

or you can make an equal length one like this one and make it sound cool since the exhaust pulses reach the junction at the same time......

 

[green03]

another angle

I built this with some old mandrel bends I had laying around the garage......