mparker3853

Ok has anyone dynoed their car and see the how much difference there is if I was going to go true duals or use a Y-pipe. I have looked and people are saying they have used a Y-pipe with a 4" pipe and they have gotten good results and I have heard people have used a X or H pipe and have gotten more power has anyone compared the two??

The reason why I am asking is because I lowered the car and I dont have much clearence space for true duals and I was thinking of removing the brace that runs right beside the driveshaft that connects the transmission and rearend together but Idk if that brace has any major benefits so idk

KevinR

Never have compared the two, but I have 3 inch true duals and my car is lowered. Just gotta take it easy going over speed bumps.

Shenlon

iTrader: (4)

I'll try to find the post, but there is someone who has a car w/ a 408 or 402 that changed just the exhaust setup and found that the difference between a properly setup Y-pipe and 3" true-duals was negligible. I'm still on the fence myself and have been trying to figure out which way to go. I think I may go with the Y-pipe first since it is what our cars were designed to accommodate and then if I'm not happy I'll try the TD over the axle.

**EDIT**
Here's the post I was referring to, although they are focused on the decibel rating, they do say that the track times and trap times were comparable.
https://ls1tech.com/forums/12860556-post11.html

1998Z28LOADED

Torque Arm? I'm no Sam Strano but I dont think you want to remove that.

mparker3853

KevinR do you have any pictures on how you ran your pipes and mufflers??

KevinR

Oh... I think that's what he's talking about.. Yeah OP, don't take that off. You need that.

KevinR

No, not on my computer at work. when I get home tonight I will try to get some posted up for ya.

mparker3853

ok thats the main problem is where to put the mufflers the pipes i think i can get around but flowmaster mufflers are pretty big so i have heard alot of people going for the magnaflow which mufflers do you have on yours?/

KevinR

Yeah, don't go with Flowmaster. I have Twister's on mine.

mparker3853

did u put them on right before the rearend and then dumping the pipes pver the axles?? thats where it seems most people are putting them on at. I just dont wanna be straping my mufflers i bought so Hooker competion long tube headers and i dont think they are going to be a factor

KevinR

Mine don't go over the axle. They're dumped before it.

mparker3853

ok thanks yea i would still like to see how you have your pipes ran I just wanna see because my local muffler shop thinks im crazy so i just wanna tell them this is what i want and show them exactly where the pipes are going

KevinR

Alright, I'll try to get some up tonight.

KevinR

Sorry man, I'm not good at this uploading pictures bullshit, but hope it helps.