Which exhaust system is ideal???

[Yellowb1rd]

Fellow Pelicans,

I'm trying to figure out which system will produce the most output for my 32V motor, and could use your input. I have both of these systems, and am trying to determine which of the two would be the best setup for "performance". This is not a daily driver, and the vehicle is emissions exempt anyway, so that is not an issue.

System one - currently installed and shown in the diagram on the left

System two - stored away, but ready to be installed. Shown in the diagram on the right. Has desireable $$$ true 2.5" aluminum'ized' x-pipe. The installer essentially hacked out a foot or so to weld the cat in (as shown in the picture), then welded the remaining approx 2' of 2.5" pipes after the cat. After those re-attached pipes, it's the stock unit.

Obviously, the installed system (system one) is going to be lighter, but it's essentially a stock system with no cat and two mufflers.

From looking at the numbers on the cat (on system two) it appears to be a high-flow Magnaflow unit of recent manufacture - stamped CA/CE 99000 94000 10/08 (I assume 10/8 is the manufacture date). I would like to use that x-pipe, but I'm not sure I would be gaining anything but additional weight, if I installed this system.

What do you all think?


`

[Fixer]

Calling Landseer...

[Yellowb1rd]

my original pic didn't include the "Bischoff" muffler for system one in the diagram... here's the updated diagram

[Danglerb]

Depends on the quality of the Y, if its in the correct location and geometry of the merge is correct is should make about as much torque and HP gain as the X, which looks like the good one from motorsports.

Exhaust swaps are trivial, try each one and see which you like, stock mufflers likely much quieter than a Magnaflow, so make a timed repeatable run with stopwatch etc.

[XLR8928]

Had you considered a performance "single exhaust" i.e.- 2.25" headpipes, into a Y pipe into a 3" main pipe thru a magnaflow 3 into two 2.5 inch exits? My system sounds,
and functions awesome. All of these materials available thru Summit racing.
-Kerry

[Yellowb1rd]

Thanks for the responses, guys. Yeah, I believe it is a motorsports x pipe. I am hoping that someone else has run similar tests, because it would save some time. I'd rather not test, take off one, mount another, retest, and possibly have to re-install the original system again because it turned out to be a better performer. XLR, the your system sounds great. I'm just looking to use what I already have, though. Don't want to re-engineer anything at this point.