exhausting questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

724wdcopper · 05-27-2004, 05:24 AM

anyone out there have any experience with hedeman xstream headers? are they full length or shorties? guys at parts store can only look at the pictures, and that is a car header.

also, flowmaster, dynomax, ultraflow - which has the most mellow tone? was thinking flowmaster bigblock 70 series or similar. with a stock 1995 350, my truck is no race machine, and i don't want it to sound that way. have true duals now, but just the other day the drivers pipe rotted off just behind the muffler. not all the way, just a giant, spiral hole. sounds like a horrific exhaust leak ( i guess it is, really), but i cant stand it. because i work at night - 14 hour shifts - i havent cut it off yet, will do this weekend.

thinking of going with a 3" single instead of the 2.25 duals. i guess i just like to be different. i dont like the uneven exhaust pulse of the true duals, and a crossover looks like a pain in the butt with the t-case in the way. any opinions out there?

as for bolt on kits, i cant seem to find much in the way of 1972, but lots for late model stuff. my dad thinks that would be the way to go, a late model bolt on instead of exhaust shop. he owns a body shop, so welders, torches, lift, and other tools are at hand. anyone tackled a project like that?

thanks for your help!

Cethern · 05-27-2004, 09:22 AM

Have you looked at Doug Thorley? They have a pipe that bolts on for the cross over, And from what I have seen they offer headers for lifted trucks, I looked at their site and didn't see much for the 67/72 stuff but I could of missed it. Doug Thorley
I have been told and heard that a single 3" will out flow two 2.5" and before I sold my 83K5 I had planned to do pretty much what you have in the works.

Ceth

724wdcopper · 05-28-2004, 03:07 PM

thanks, i'll look into it! i was interested in the hedeman xtreme because of the 3/8" flanges and 16 gauge pipes, along with jet hot coating. all for $255 or so. i'll look into the thorleys. i have heard about tri ys making big power down low. this is where i need it, seeing as how this is my daily driver and never sees 5000rpm. my 4wd could always use a little bottom end.

05-27-2004, 05:24 AM	#1
724wdcopper graphic designer Join Date: May 2004 Location: Spokane, Washington Posts: 841	exhausting questions anyone out there have any experience with hedeman xstream headers? are they full length or shorties? guys at parts store can only look at the pictures, and that is a car header. also, flowmaster, dynomax, ultraflow - which has the most mellow tone? was thinking flowmaster bigblock 70 series or similar. with a stock 1995 350, my truck is no race machine, and i don't want it to sound that way. have true duals now, but just the other day the drivers pipe rotted off just behind the muffler. not all the way, just a giant, spiral hole. sounds like a horrific exhaust leak ( i guess it is, really), but i cant stand it. because i work at night - 14 hour shifts - i havent cut it off yet, will do this weekend. thinking of going with a 3" single instead of the 2.25 duals. i guess i just like to be different. i dont like the uneven exhaust pulse of the true duals, and a crossover looks like a pain in the butt with the t-case in the way. any opinions out there? as for bolt on kits, i cant seem to find much in the way of 1972, but lots for late model stuff. my dad thinks that would be the way to go, a late model bolt on instead of exhaust shop. he owns a body shop, so welders, torches, lift, and other tools are at hand. anyone tackled a project like that? thanks for your help!

05-27-2004, 09:22 AM	#2
Cethern What was I thinking?? Join Date: Dec 2003 Location: Commerce City Co Posts: 636	Tri Y Have you looked at Doug Thorley? They have a pipe that bolts on for the cross over, And from what I have seen they offer headers for lifted trucks, I looked at their site and didn't see much for the 67/72 stuff but I could of missed it. Doug Thorley I have been told and heard that a single 3" will out flow two 2.5" and before I sold my 83K5 I had planned to do pretty much what you have in the works. Ceth __________________ 72 K5 that needs lots of parts.. 71 GMC 3/4 4x4 That doesn't need much which is a good thing I don't think I could aford another money pit...

05-28-2004, 03:07 PM	#3
724wdcopper graphic designer Join Date: May 2004 Location: Spokane, Washington Posts: 841	thanks, i'll look into it! i was interested in the hedeman xtreme because of the 3/8" flanges and 16 gauge pipes, along with jet hot coating. all for $255 or so. i'll look into the thorleys. i have heard about tri ys making big power down low. this is where i need it, seeing as how this is my daily driver and never sees 5000rpm. my 4wd could always use a little bottom end.



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