performance Y pipe or true duals?

[Moparmat2000]

Anybody make a performance Y pipe or true duals for these trucks. I was thinking about some bolt in shorty headers, and i know the Y pipe is restrictive. Exhaust places out here wont touch anything fwd of the cat.

Currently out of the cat, i had a straight thru bullet muffler attached, and had it Y out behind tge cat with dual 2.5" pipes exiting under the back bumper.

It would be nice to have a true dual setup with dual cats. If not a less restrictive Y pipe with a larger diameter

 

[michael hurd]

If you can weld, you can certainly cut and weld up a box of bends to make your own Y pipe, with something like this:

http://www.ebay.com/itm/Flowmaster-...ash=item51dbcf7346:g:sSoAAOSwll1W0LRx&vxp=mtr

Or:

http://www.ebay.com/itm/VIBRANT-103...ash=item419fbb4c6d:g:I3AAAOSwB4NW05hh&vxp=mtr

Choose your pipe size based on your intended operating range and expected power output, if sticking with TBI heads and flat tappet cam, then 1 7/8 to 2" per bank should be adequate.

 

[michael hurd]

I would suggest a Y pipe, and a single larger converter, but you can also run dual pipes with an H or X pipe, so that both banks scavenge properly.

 

[90halfton]

I would suggest a Y pipe, and a single larger converter, but you can also run dual pipes with an H or X pipe, so that both banks scavenge properly.

Do one of those things. Ran true dual system years ago when I was a kid and didn't know any better, the power loss sucks, though they do sound cool.

 

[SkyHighColorado]

true duals is a bad set up as others said. needs some kind of equalization.

 

[21Actual]

I seem to recall the 3/4 ton trucks with the 350 use a larger pipe diameter for the Y-pipe. Worth looking into.

 

[Moparmat2000]

I seem to recall the 3/4 ton trucks with the 350 use a larger pipe diameter for the Y-pipe. Worth looking into.

Theres some of these 3/4 ton trucks in my junkyard. I may have to take a caliper with me and check em out. Did the exhaust manifolds change any between 88 and 94? I believe the plumbing on my 94 is 2" tube, so if the 3/4 tons used larger diameter tube, wouldent the exhaust manifolds have larger outlets?? Maybe 2.50" ??

I know the manifolds are a restriction too, but for now it would be easier as a bolt on that can be modded later. Unless the 3/4 ton mannys are larger, then the only restriction would be at the Y as Michael pointed out.

 

[95Escahoe]

I run the Flowmaster catted y-pipe its 3" and has nice bends so its not like the factory one

 

[df2x4]

I run the Flowmaster catted y-pipe its 3" and has nice bends so its not like the factory one

Same here on my red truck, except it's the 4.3/5.3 setup and mine's a Magnaflow.