Currently I have a muffler, no cat, and single 3&quot; stack. Went from no muffler, dumped ahead of rearend, 4&quot; from where muffler was supposed to be. Egt's went from 600 to 1000 when I installed the stack. Was flat cut on top, so slash cut it-EGT,s dropped to 800. Now, would I be better off with dual 3&quot; stacks or single 4&quot; (have enuff junk layin around to do one or the other) This should drop EGT's, no?<br> thanks for any info

 

I don't think the egts will drop only with a 4&quot; down pipe will you see a difference. With my stacks I did not see a difference<br>DM01

 

[glow=blue, 4, 400]I WANT STACKS![/glow]<br><br>Can't wait till I get my 5&quot; Bull Hauler Stacks! But performance BOMB's come first! :'( ;D<br><br>Wish I knew where to find this one piece Y-pipe! Posted but the guy hasn't answered me yet!<br>

 

Mark that Ypiece is nice but I priced them and they were around 120-150 bucks. I said the heck with that and made my own by welding a piece of pipe onto the side of the pipe that lays across the bed. Then I cut the hole in the bed and ran it down to the downpipe.<br>works great but you already know that. <br>DM01

 

[quote author=dodgeman01 link=board=16;threadid=8824;start=0#85357 date=1041029376]<br>Mark that Ypiece is nice but I priced them and they were around 120-150 bucks. I said the heck with that and made my own by welding a piece of pipe onto the side of the pipe that lays across the bed. Then I cut the hole in the bed and ran it down to the downpipe.<br>works great but you already know that. <br>DM01<br>[/quote]<br><br>Yeah unless I can get the parts SUPER cheap I'm gonna try the Rob Thomas method Aaron. 4&quot; Square tubing in the bed with reducers welded in to go from the 5&quot; stacks to the 4&quot; tubing. Providing I can get the tubing fairly cheap it should work. I do however have a friend in KY right now watching the big rig junkyards because he says he comes across the stuff I need often. ;D

 

[quote author=dodgeman01 link=board=16;threadid=8824;start=0#85357 date=1041029376]<br>Mark that Ypiece is nice but I priced them and they were around 120-150 bucks. I said the heck with that and made my own by welding a piece of pipe onto the side of the pipe that lays across the bed. Then I cut the hole in the bed and ran it down to the downpipe.<br>works great but you already know that. <br>DM01<br>[/quote]<br><br>Oh yeah Aaron that T-pipe one of the guys on TDR dida custom job on it. Tig welded the T pipe, excess pipe, and 90* elbows, then ground the welds and painted it. Looks sweet! He said he could make more, but shipping would probably be a PITA! I'm gonna try and get a line on some 4&quot; square tubing.<br>