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Jeli 06-15-2004, 11:10 PM I was going to simply straight pipe my truck but I have a set of 2 1/2" stainless pipes off my old truck that should fit. The area of a 3 1/2" circle is just a hair less than two 2 1/2" pipes but the circumference is more for two pipes. I don't have much to lose but my time and a few bucks. I have a feeling though it won't sound good or be a restrtiction. Comments???? Max Power 06-15-2004, 11:17 PM I don't think it would look very good. http://www.dieselplace.com/forum/smileys/Disapprove.gif Z71 Grizzly 06-15-2004, 11:23 PM Go 5" dualshttp://www.dieselplace.com/forum/smileys/Thumbs Up.gif That's what I might do when I get my Dmax. Harley99 06-16-2004, 12:39 AM <TABLE id=HB_Mail_Container height="100%" cellSpacing=0 cellPadding=0 width="100%" border=0 UNABLE="on"> <T> <TR height="100%" UNABLE="on" width="100%"> <TD id=HB_Focus_Element vAlign=top width="100%" background="" height=250 UNABLE="off">Jeli, I just installed the MBRP 4 inch T-409 system with the 5 inch polished SS tip. Easy install and a good looking and sounding system. Don't know about installing a 2 1/2 inch system on a diesel.</TD></TR> <TR UNABLE="on" hb_tag="1"> <TD style="FONT-SIZE: 1pt" height=1 UNABLE="on"> <DIV id=hotbar_promo></DIV></TD></TR></T></TABLE> grasshopper 06-16-2004, 09:44 AM Can you say egt's and a funny sounding rig???http://www.dieselplace.com/forum/smileys/Big Smile.gif GMC2500HD 06-16-2004, 09:59 AM Too much back pressure, higher egt's, funny sounding and slower spooling turbo if I assume correctly. I think that it would not look so good... Edited by: GMC2500HD Dmax Tim 06-16-2004, 10:05 AM 2 1/2" duals w/ 6" tips, would that look good Max? Max Power 06-16-2004, 10:40 AM 2 1/2" duals w/ 6" tips, would that look good Max? LOL, that would look fantastic. Especially on a civic. http://www.dieselplace.com/forum/smileys/Cool.gif grasshopper 06-16-2004, 12:32 PM http://www.dieselplace.com/forum/smileys/HiHi.gifhttp://www.dieselplace.com/forum/smileys/HiHi.gif Z71 Grizzly 06-16-2004, 12:43 PM Good onehttp://www.dieselplace.com/forum/smileys/HiHi.gif The people with the little coffee can Fast and the Furious cars just wanna be like the big boys with the big pipes. ratlover 06-16-2004, 12:59 PM Ahh the Slow and the Infuriatedhttp://www.dieselplace.com/forum/smileys/Ermm.gif Most are pretty cool though and give "props" after they get walked by a big old PU that they were snickering about a few seconds beforehttp://www.dieselplace.com/forum/smileys/Approve.gif grasshopper 06-16-2004, 01:54 PM Amen to that Ratlover!!!!http://www.dieselplace.com/forum/smileys/Big Smile.gif Z71 Grizzly 06-16-2004, 02:12 PM I know it Ratlover, I can't wait to show them once I get mine that it's not all big and heavy jesshd 06-21-2004, 10:00 PM Blechh!! Jess Z71 Grizzly 06-21-2004, 10:12 PM What's that for JessHD? jesshd 06-22-2004, 08:28 AM 2.5 inch duals on a diesel. Blech! That's what.http://www.dieselplace.com/forum/smileys/HiHi.gif Z71 Grizzly 06-22-2004, 08:43 AM I know it, why would you think of such a thing.http://www.dieselplace.com/forum/smileys/Disapprove.gif Jeli 06-22-2004, 03:13 PM FYI, I'm 3.5" straight piped as of 10PM yesterday. Z71 Grizzly 06-22-2004, 10:25 PM I'm glad you didn't go 2 1/2 inch duals, I'm sorry but you would have gotten laughed at. Nice looking truck Jeli mattymac 06-23-2004, 02:35 AM 2 2.5" pipes wont outflow a single 5 inch pipe anyway! Frank Blum 06-23-2004, 09:44 PM Sorry, but not so. There will be less back pressure with the single 3.5" in this case. There is a local Dodge here in town that has a 4" going into the muffler with what looks like two 3.5" tail pipes coming out either side behind the wheels with chrome tips. Looks good. I don't know what gain the guy got. His wife is always driving the truck so I haven't had a chance to ask about it. Later! Frank | ||