Need pics of Magnaflow stainless exhaust installed. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chevydog66 · 03-31-2008, 04:44 AM

I'm currently in the midst of installing the S/S Magnaflow 2.5" exhaust kit on my 72 GMC longbed. I have already done the search and haven't found much info. Does anyone have pics of it installed that they could share real quick? I wish they would mark the pipes like Flowmaster does.

Jim_PA · 03-31-2008, 07:52 AM

The most critical parts are:

Don't trim the back of the X (only the front if absolutely necessary).

Make sure that the bends that go up behind the crossmember are as far front as possible. This gives best trailing arm clearance, and puts things at the right angle for the midpipes to stay closer to the driveshaft and allows you to make them run paralell to the driveshaft which is also critical. Getting things in line right from this point is the only way it will work, or you'll fight with the shock mounts, and you'll have problems with the mid-pipes trying to angle out in the back where the mufflers bolt on. It's impossible to make it work any other way but getting the mids paralell and as close to the driveshaft as possible, or then you'll find that the tailpipes will interfere with everything. Get those bends up behind the crossmember right, and that will let you set the mid pipes where they MUST be. Did I mention this part was very important

I'm still not done messing with mine, but I moved on to something else for now. I'm considering going to some 3 or 3.5" tailpipes because these actually look kinda small

70GMCer · 03-31-2008, 03:08 PM

Quote:

Originally Posted by chevydog66

I'm currently in the midst of installing the S/S Magnaflow 2.5" exhaust kit on my 72 GMC longbed. I have already done the search and haven't found much info. Does anyone have pics of it installed that they could share real quick? I wish they would mark the pipes like Flowmaster does.

Is this a leaf spring rear? I was thinking on getting this setup, but Magnaflow says fits coil rear. I'll be watching this thread for answers also.

**truckdude239** · 03-31-2008, 03:56 PM

thats a coil rear

haysonj · 03-31-2008, 03:57 PM

Heres mine but it has a 4 inch spring lift on it so may be of no help. I welded a lot of the pipes and had to fab pieces to connect to the headers.

70GMCer · 04-01-2008, 03:56 PM

Quote:

Originally Posted by truckdude239

thats a coil rear

No, the original post......what rear is in it

chevydog66 · 04-01-2008, 11:14 PM

Thanks guys!! It is a leaf spring rear and I finally figured it out and got it installed. The pipes between the X and the mufflers was confusing me.

70GMCer · 04-01-2008, 11:43 PM

did everything clear the leafs?

dieselarmy13 · 04-02-2008, 05:00 AM

Got any pics or opinions on this system? I'm really thinking about going this route.

68Stepbed · 04-02-2008, 04:20 PM

JimPa's post is of a coil rear. You can tell by the trailing arms and panhard bar.

70GMCer · 04-02-2008, 06:06 PM

I think we are wanting the info on chevydog66 leaf rear though. Any fitment issues around the leaf springs?

dieselarmy13 · 04-03-2008, 12:18 AM

I don't know if this came with it. It's not much help.
http://www.stylintrucks.com/images/U...s/16643MGF.pdf

StylinTrucks.com has them for $529.99. Thats less than what I paid for my last Flowmaster system that lasted two years!
http://www.stylintrucks.com/parts.as..._prod_ids=3106

03-31-2008, 04:44 AM	#1
chevydog66 GM ONLY BABY!!! Join Date: Oct 2003 Location: Fort Wayne, IN. Posts: 1,998	Need pics of Magnaflow stainless exhaust installed. I'm currently in the midst of installing the S/S Magnaflow 2.5" exhaust kit on my 72 GMC longbed. I have already done the search and haven't found much info. Does anyone have pics of it installed that they could share real quick? I wish they would mark the pipes like Flowmaster does. __________________ 2 wrongs don't make a right, but 3 lefts do. 66 Chevelle Malibu 406ci, 573hp, 10.99@121mph 96 Chevy Silverado Z71 72 GMC 1500 Super Custom LS 6.0/4L65 on airride http://www.cardomain.com/ride/707879...mc-c-k-pick-up

03-31-2008, 07:52 AM	#2
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	Re: Need pics of Magnaflow stainless exhaust installed. The most critical parts are: Don't trim the back of the X (only the front if absolutely necessary). Make sure that the bends that go up behind the crossmember are as far front as possible. This gives best trailing arm clearance, and puts things at the right angle for the midpipes to stay closer to the driveshaft and allows you to make them run paralell to the driveshaft which is also critical. Getting things in line right from this point is the only way it will work, or you'll fight with the shock mounts, and you'll have problems with the mid-pipes trying to angle out in the back where the mufflers bolt on. It's impossible to make it work any other way but getting the mids paralell and as close to the driveshaft as possible, or then you'll find that the tailpipes will interfere with everything. Get those bends up behind the crossmember right, and that will let you set the mid pipes where they MUST be. Did I mention this part was very important I'm still not done messing with mine, but I moved on to something else for now. I'm considering going to some 3 or 3.5" tailpipes because these actually look kinda small

03-31-2008, 03:56 PM	#4
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,233	Re: Need pics of Magnaflow stainless exhaust installed. thats a coil rear __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

03-31-2008, 03:57 PM	#5
haysonj Registered User Join Date: Dec 2007 Location: Santa Maria, Ca. Posts: 1,423	Re: Need pics of Magnaflow stainless exhaust installed. Heres mine but it has a 4 inch spring lift on it so may be of no help. I welded a lot of the pipes and had to fab pieces to connect to the headers. Attached Images __________________ 69 Chevy 4x4 383 Power

04-01-2008, 11:14 PM	#7
chevydog66 GM ONLY BABY!!! Join Date: Oct 2003 Location: Fort Wayne, IN. Posts: 1,998	Re: Need pics of Magnaflow stainless exhaust installed. Thanks guys!! It is a leaf spring rear and I finally figured it out and got it installed. The pipes between the X and the mufflers was confusing me. __________________ 2 wrongs don't make a right, but 3 lefts do. 66 Chevelle Malibu 406ci, 573hp, 10.99@121mph 96 Chevy Silverado Z71 72 GMC 1500 Super Custom LS 6.0/4L65 on airride http://www.cardomain.com/ride/707879...mc-c-k-pick-up

04-01-2008, 11:43 PM	#8
70GMCer Senior Member Join Date: Apr 2005 Location: Joppa, Maryland Posts: 4,408	Re: Need pics of Magnaflow stainless exhaust installed. did everything clear the leafs? __________________ 1997 GMC Sierra Ext 1965 Mustang

04-02-2008, 05:00 AM	#9
dieselarmy13 Phone's ringin Dude. Join Date: Mar 2007 Location: Colorado Springs Posts: 1,426	Re: Need pics of Magnaflow stainless exhaust installed. Got any pics or opinions on this system? I'm really thinking about going this route. __________________ I pitty the fool with only two headlights!! 2003 SILVERADO SS--THE NEW GIRL 1972 GMC--THE OLD GIRL

04-02-2008, 04:20 PM	#10
68Stepbed Registered User Join Date: Mar 2005 Location: 10-Uh-See Posts: 5,609	Re: Need pics of Magnaflow stainless exhaust installed. JimPa's post is of a coil rear. You can tell by the trailing arms and panhard bar. __________________ Matt 68 C10 stepside, LS1/700R4, TCI Engineering suspension system

04-02-2008, 06:06 PM	#11
70GMCer Senior Member Join Date: Apr 2005 Location: Joppa, Maryland Posts: 4,408	Re: Need pics of Magnaflow stainless exhaust installed. I think we are wanting the info on chevydog66 leaf rear though. Any fitment issues around the leaf springs? __________________ 1997 GMC Sierra Ext 1965 Mustang Last edited by 70GMCer; 04-03-2008 at 12:28 AM.

04-03-2008, 12:18 AM	#12
dieselarmy13 Phone's ringin Dude. Join Date: Mar 2007 Location: Colorado Springs Posts: 1,426	Re: Need pics of Magnaflow stainless exhaust installed. I don't know if this came with it. It's not much help. http://www.stylintrucks.com/images/U...s/16643MGF.pdf StylinTrucks.com has them for $529.99. Thats less than what I paid for my last Flowmaster system that lasted two years! http://www.stylintrucks.com/parts.as..._prod_ids=3106 __________________ I pitty the fool with only two headlights!! 2003 SILVERADO SS--THE NEW GIRL 1972 GMC--THE OLD GIRL



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