Off-the-shelf stainless exhaust systems? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

StoningtonQB · 06-17-2016, 12:00 PM

Hey guys. Been looking to replace my exhaust that the PO installed (LMC Truck cheap-o) with a quality system. I've only seen 3 exhaust systems for our trucks:

Magnaflow 16643 - $678.97
Flowmaster 817654 - $653.97
Pypes Performance SGT79S - $459.97

I'm leaning towards the Pypes system because of price (and uses X-pipe), but catalog claims it's for "67-82" pickups. No reviews I've seen are from 67-72 owners. Who has experiences with any of these exhausts? I expect a bolt-on experience but don't mind if the downpipes need some modification.

**Joesjunk** · 06-17-2016, 01:58 PM

I put a flow master kit on my friends truck and it fit really good. Very simple to install to.

hdff · 06-17-2016, 03:37 PM

Have you checked a muffler shop? I had custom duals custom installed for $400 with me bringing the dynomax mufflers I bought off amazon for $80( I think)

StoningtonQB · 06-17-2016, 03:51 PM

Not really interested in custom work. Although I will probably have to go to a muffler shop anyways to modify the downpipe, I am only interested in stainless steel as I have zero confidence in non-stainless exhausts these days lasting more than one year.

Z10 · 06-17-2016, 04:56 PM

I used Magnaflow and used their cats. I like the sound. I would look around, on the price. I found a system/kit in Houston for around $550 about 18months ago. If I can find the receipt I'll let you know who the company was.

You can find several photos on my build thread link below.

Steve Cole · 06-18-2016, 01:34 AM

I am running the Magnaflow system. My truck is lowered with a fuel cell in the back. The "custom fit" exhaust didn't fit at all. Left side was decent, right side no way. I went to two different muffler shops trying to make it work. The part that goes over the axle had to be cut, sectioned, and welded five times to make it fit right. I agree with your preference for stainless but you can order it in raw stock and take it to your local shop to have them install it, or have them order it for you. Next time around, this is what I will do. In the long run, I ended up paying much more ordering a custom kit then having to pay a shop to make it fit right. BTW..a magnet sticks to my "stainless" exhaust. It is not a very good quality stainless. Good luck!

StoningtonQB · 08-05-2016, 10:18 AM

If any of you were interested in how the Pypes system looks and sounds, I finally got around to making a video after installation:

https://www.youtube.com/watch?v=jqJ91Cm01kQ

BigMike56-72 · 08-05-2016, 10:40 AM

Quote:

Originally Posted by StoningtonQB

If any of you were interested in how the Pypes system looks and sounds, I finally got around to making a video after installation:

https://www.youtube.com/watch?v=jqJ91Cm01kQ

Sounds good! Nice video as well.

6T7 C10 · 08-05-2016, 09:08 PM

My brother very recently installed the stainless Flowmaster system in his original 1970 LWB. It is a well thought out quality system. Installation went good with no problems or modifications. Looks good too. Sounds good but at a certain rpm point has that Flowmaster drone or resonance that is the only slight drawback to me.

StoningtonQB · 08-06-2016, 08:02 PM

Quote:

Originally Posted by 6T7 C10

My brother very recently installed the stainless Flowmaster system in his original 1970 LWB. It is a well thought out quality system. Installation went good with no problems or modifications. Looks good too. Sounds good but at a certain rpm point has that Flowmaster drone or resonance that is the only slight drawback to me.

Tell him to post a video

**special-K** · 08-08-2016, 10:25 AM

Too bad you don't want custm, because that is best...if you have a good shop. I have an exhaust I had run just the way I wanted done in '04 in galvaneel that is still going strong long after many factory stainless systems have fallen off. The exhaust I had done on my '71 Custom Camper in '89 was still on it in '04 when I got ride of it. If that's not a good exhaust I don't think there is a such a thing. Oh, and I spent less than half of those production systems they knock out by the dozens at a time. But, I've always been that picky about my exhaust systems. I have other more current examples with more current prices still way cheaper, but couldn't tell a story of long lasting with those...yet

06-17-2016, 12:00 PM	#1
StoningtonQB Registered User Join Date: Dec 2013 Location: CT Posts: 109	Off-the-shelf stainless exhaust systems? Hey guys. Been looking to replace my exhaust that the PO installed (LMC Truck cheap-o) with a quality system. I've only seen 3 exhaust systems for our trucks: Magnaflow 16643 - $678.97 Flowmaster 817654 - $653.97 Pypes Performance SGT79S - $459.97 I'm leaning towards the Pypes system because of price (and uses X-pipe), but catalog claims it's for "67-82" pickups. No reviews I've seen are from 67-72 owners. Who has experiences with any of these exhausts? I expect a bolt-on experience but don't mind if the downpipes need some modification.

06-17-2016, 01:58 PM	#2
Joesjunk Senior Member Join Date: May 2001 Location: Independence MO. Posts: 7,691	Re: Off-the-shelf stainless exhaust systems? I put a flow master kit on my friends truck and it fit really good. Very simple to install to. Attached Images __________________ 72 3/4t Custom Deluxe 402/auto 66k Original paint 71 3/4t 4x4 Custom Deluxe 10k original miles Original paint 71 3/4t Cheyenne 402 70k original paint 72 3/4t 4x4 Custom deluxe 72 3/4t 4x4 Custom deluxe 91k original paint 72 Cheyenne/30 Dually 69 Camaro SS396 4-speed 13 GMC 2500HD Duramax I bought new 05 Jeep Wrangler "Willys Edition" 12k miles (I bought new) 85 3/4 ton 4x4 Scottsdale 33k miles original paint 86 1 ton 4x4 SRW Silverado 454 restored 80 1 ton 4x4 SRW Silverado 9,434 original miles!! original paint 95 GMC 1 ton dually 4x4 my dad bought new 95 GMC 3/4 ton 4x4, regular cab 454, 31k original miles 2002 2500HD 4x4 regular cab 6.0L 67k miles 2002 2500HD 4x4 regular cab 8.1L 28k miles 2003 GMC 2500HD 4x4 regular cab Diesel 93k miles 67-72 Parts for sale

06-17-2016, 03:37 PM	#3
hdff Registered User Join Date: Apr 2007 Location: pasadena,TEXAS Posts: 880	Re: Off-the-shelf stainless exhaust systems? Have you checked a muffler shop? I had custom duals custom installed for $400 with me bringing the dynomax mufflers I bought off amazon for $80( I think) __________________ 1971 Cheyenne SWB 402BB, 700R4, 3.73 posi, PS, PB, A/C, Tilt, Tach "Wanda" Don't argue with idiots, People watching may not be able to tell the difference... There's someone in my head........But it's not me...... cheap tricks thread great info here!! http://67-72chevytrucks.com/vboard/s...d.php?t=489394

06-17-2016, 03:51 PM	#4
StoningtonQB Registered User Join Date: Dec 2013 Location: CT Posts: 109	Re: Off-the-shelf stainless exhaust systems? Not really interested in custom work. Although I will probably have to go to a muffler shop anyways to modify the downpipe, I am only interested in stainless steel as I have zero confidence in non-stainless exhausts these days lasting more than one year.

06-17-2016, 04:56 PM	#5
Z10 Registered User Join Date: Aug 2012 Location: Midland, TX Posts: 1,267	Re: Off-the-shelf stainless exhaust systems? I used Magnaflow and used their cats. I like the sound. I would look around, on the price. I found a system/kit in Houston for around $550 about 18months ago. If I can find the receipt I'll let you know who the company was. You can find several photos on my build thread link below. __________________ 1969 RS/SS Z10 Camaro Pace coupe 1972 GMC Short Step buildhttp://67-72chevytrucks.com/vboard/s...=1#post6356218 1979 Mazda RX7 1979 Pontiac Trans Am WS6 & 1979 Pontiac Trans Am 10th Anniversary 1999 Honda Valkyrie 2006 Corvette Z06 2010 BMW 650i

06-18-2016, 01:34 AM	#6
Steve Cole Registered User Join Date: May 2012 Location: Faith,NC Posts: 1,626	Re: Off-the-shelf stainless exhaust systems? I am running the Magnaflow system. My truck is lowered with a fuel cell in the back. The "custom fit" exhaust didn't fit at all. Left side was decent, right side no way. I went to two different muffler shops trying to make it work. The part that goes over the axle had to be cut, sectioned, and welded five times to make it fit right. I agree with your preference for stainless but you can order it in raw stock and take it to your local shop to have them install it, or have them order it for you. Next time around, this is what I will do. In the long run, I ended up paying much more ordering a custom kit then having to pay a shop to make it fit right. BTW..a magnet sticks to my "stainless" exhaust. It is not a very good quality stainless. Good luck!

08-05-2016, 10:18 AM	#7
StoningtonQB Registered User Join Date: Dec 2013 Location: CT Posts: 109	Re: Off-the-shelf stainless exhaust systems? If any of you were interested in how the Pypes system looks and sounds, I finally got around to making a video after installation: https://www.youtube.com/watch?v=jqJ91Cm01kQ

08-05-2016, 09:08 PM	#9
6T7 C10 Registered User Join Date: Feb 2015 Location: TX Hill Country Posts: 150	Re: Off-the-shelf stainless exhaust systems? My brother very recently installed the stainless Flowmaster system in his original 1970 LWB. It is a well thought out quality system. Installation went good with no problems or modifications. Looks good too. Sounds good but at a certain rpm point has that Flowmaster drone or resonance that is the only slight drawback to me.

08-08-2016, 10:25 AM	#11
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,861	Re: Off-the-shelf stainless exhaust systems? Too bad you don't want custm, because that is best...if you have a good shop. I have an exhaust I had run just the way I wanted done in '04 in galvaneel that is still going strong long after many factory stainless systems have fallen off. The exhaust I had done on my '71 Custom Camper in '89 was still on it in '04 when I got ride of it. If that's not a good exhaust I don't think there is a such a thing. Oh, and I spent less than half of those production systems they knock out by the dozens at a time. But, I've always been that picky about my exhaust systems. I have other more current examples with more current prices still way cheaper, but couldn't tell a story of long lasting with those...yet __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~



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