My cousin gave me a Y pipe and said I could replace my muffer with that and have pipes welded on or just dump it... Right now I have a Flow 50 SI/DO. What is that going to do if I put that on? I really don't want to waste 300 bucks paying the muffler shop to weld that on and run the smaller pipes for it if its gonna kill the backpressure and sound like crap. I want performance (which is sorta why Im leaning away from flowmaster now after having it for a year). Any thoughts? Im trying to get my pipes raised anyways and maybe even rerun a little differently now that the BL is on there, but again, I don't want this Y pipe on there if its gonna sound bad and kill performance.

 

Using the Y pipe as a muffler delete will work well as long as its not smaller than 2.5"

 

Im gonna go measure it... it came off his silverado, so i dunno what it is... oddly enough, his silverado had one pipe running all the back unlike all the other chevys ive seen with two all the way to muffler just as stock

 

okay so the inlet is 3"... Im pretty sure the muffler shop could fix that... when I say inlet, its a weird looking inlet:

Sorry for the bad photo, just took it about 5 minutes ago in the dark, but you can see its like they added a huge inlet to go onto the inlet... The actual end of the pipe on the inlet end measured 3". Where the pipe gets smaller, closer to the Y, it measured ~ 2.5"



And the pipes coming off the Y are 2" in diameter:

 

would this be feasable... I have 4" tips right now, and I don't really care for the tips to big as big as they are... at the same time, I don't want really small tips either... maybe I could run the small pipes and do a turn-down exhaust on both sides? Any ideas?

 

http://www.youtube.com/watch?v=WXqE-KU0AN4

this is what im about to do

 

holy crap ford man that does sound good...idk if ive heard that one before

 

wow! Did not expect that from straights! Idle and rev are eh... but taking off sounds awesome!

 

that sounds awsome! i hate this site! it makes me want to spend all kinds of money

 

I was trying to pull my friend out of about 2 and half feet of water last night in the green swamp... well i was in about 2 and half ft of water, he was about 3 and half... and man my truck sounded like it was gonna knock off. sounded a lot like when you clean your throttle body out and it putters... I think water got up in my pipes... way up in my pipes. I was having to back out when I was pulling him, and my pipes are at a 45deg angle. I know there was a lot of mud in there when we cleaned the trucks off.... Would dumping my pipes help with water getting in there? kinda like fordman's setup? Also, will those 2" pipes work like I showed in the photo? or do I need 2.5"?

 

Just to give you an idea of what happened, and the kidna stuff I drive through... Here's my friend's truck I went and pulled him out. lol... I was so glad I heard that thing crank back up!



And here's me coming in... I parked and walked half way out to and took this one, so I could find a good spot to come into... I was at the time standing in about 2 feet of water, at some points it was about up to 2.5'... and as you can tell, my friend's truck was in way deeper than that, lol..

 

wingman4, did you mention that your friend was driving a 2wd in 3.5 feet of water, na jk, tell him hi for me

 

haha turn downs in water from my experience = bad. mine died. twice lol. its annoying how you can here it like gurgling the water

 

oh... lol... well thanks for the input! I guess I won't be going that exact route... maybe I should just raise the pipes and then have a Y pipe built with the proper size pipes in it... Im just thinking that if I put the y in there and theres no muffler I would almost need the 2" instead of 2.5" for more backpressure. but maybe more backpressure is bad at that point?

 

That is not a GM Y pipe, that is a shop fabbed one judging by those welds. If that was factory it would either be surface rusted, or golden t-304. What year did this come out of?

All half ton GM trucks in GMT-800 generation ( '99 - '06 ) are single intermediate pipe systems. Some of the 90s trucks had dual midpipes leading to the muffler, 01 - 06 2500HD series trucks kept doing that with 3" with a dual 3" to single 3.5" tailpipe adaption.

I helped him chose the cats last year And you have heard it before apparently to the comments,

f150man55 ( 11 months ago)
wow sounds good check out my straights and hi flows


Dont chop your muffler until January, I wanna hear it in person!


Go on the highway and top out the speedo, the engine will clean the exhaust out of anything that shouldn't be there, and your tires will lose the loose mud