LMC bolt on dual exhaust - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72WiscSub · 07-07-2009, 09:52 PM

Has anyone used the dual exhaust kit from LMC? 2 1/4" system.

I have a 72 Suburban I am looking to put duals on. 350, stock manifolds. Seems like a good price.

Do the exhaust hangers attach to factory holes, or do I have to drill or weld hangers on to the frame?

Local places what 400-450.00 to do dual exhaust. This system would save me a lot of money.

Thanks

71meangreenc10 · 07-08-2009, 01:11 AM

I have it, like it, had to get one pipe adjusted at midas, besides that it works fine, has all the hangers and gasket with it. Midas here in SV AZ wanted 600+ to do my longbed. I hope they are still waiting....its rediculous.

Smitty

JimKshortstep4x4 · 07-08-2009, 05:04 AM

I have installed several sets and they hold up well. You will end up adapting the hangers to the frame. I use heavy duty clamps for clamping the pipes together as the light duty ones furnished will not squeeze the pipes down enough to seal the joints.

Jim

mrein3 · 07-08-2009, 06:55 AM

The exhaust 'kit' I bought for my 4x4 went right on with no problems. Everything was in the box except far a hanger for the side of the truck that didn't have one from the factory. That is the only thing I had to fab.

The kits are drop shipped from http://www.heartthrobexhaust.com/. Quality stuff. I've had my system on there so long I already had to replace the mufflers once.

72WiscSub · 07-08-2009, 07:42 AM

Sounds like a good system. Thanks.

capev86 · 07-08-2009, 08:46 PM

i want to run that lmc truck stainless exhaust w/ x pipe on my 72 burb 3/4 ton 2wd. i will keeping the stock ram horn manifolds for big money savings, durability and better low end performance than headers provide. that will let my 406sbc breathe like it should!

72WiscSub · 07-08-2009, 09:28 PM

Yep the stainless x-pipe system looks nice, but a bit too pricey for me right now. Plus I have a stock 350 so I think the 2 1/4" system will be good. Even when I replace/rebuild the engine I am not going to go too high horsepower. I would like to get 280-300HP out of a rebuild. That's another day!

capev86 · 07-09-2009, 05:57 PM

sounds good...

i just hate to invest money and time into a vehicle and then have to do it over again a couple years down the road. i have been replacing fasteners on my 72 burb left and right with stainless so it will look nice for a long time. i can't remember how many times my dad was out in garage all night long with the air chisel seperating exhaust pipes on our aries wagon (now another project of mine) so he could put in a new section. his next car (now my 198k mile daily driver) was/is a 97 merc sable wagon and it was sooooo nice that it had a stainless exhaust.....only had to recently replace the cat converters (all one piece w/ a y pipe...ouch$$$) and it still has the same muffler and tailpipes that were on 11 years ago when he bought it. thank goodness lmc has stainless door sill plates...i only have to get a "vulnerable" one for the third door. o blah dee, oh blah da.....life goes on......

big mike71 · 07-09-2009, 07:46 PM

I had 2 1/4 dauls with ram horns, put headers and 2 1/2 with flow masters it sounds 10 times better.

9teen69 · 09-10-2009, 10:53 PM

How much for the heart throb exhaust?

Tkmadone · 09-10-2009, 10:58 PM

I did it and was very pleased with the kit and how it sounds. Very good value.

07-07-2009, 09:52 PM	#1
72WiscSub Registered User Join Date: Apr 2009 Location: Appleton, WI Posts: 75	LMC bolt on dual exhaust Has anyone used the dual exhaust kit from LMC? 2 1/4" system. I have a 72 Suburban I am looking to put duals on. 350, stock manifolds. Seems like a good price. Do the exhaust hangers attach to factory holes, or do I have to drill or weld hangers on to the frame? Local places what 400-450.00 to do dual exhaust. This system would save me a lot of money. Thanks

07-08-2009, 01:11 AM	#2
71meangreenc10 Its a Truck Thing...... Join Date: Dec 2004 Location: Sierra Vista, Arizona Posts: 3,159	Re: LMC bolt on dual exhaust I have it, like it, had to get one pipe adjusted at midas, besides that it works fine, has all the hangers and gasket with it. Midas here in SV AZ wanted 600+ to do my longbed. I hope they are still waiting....its rediculous. Smitty __________________ 71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time Last edited by 71meangreenc10; 07-08-2009 at 01:13 AM.

07-08-2009, 05:04 AM	#3
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Re: LMC bolt on dual exhaust I have installed several sets and they hold up well. You will end up adapting the hangers to the frame. I use heavy duty clamps for clamping the pipes together as the light duty ones furnished will not squeeze the pipes down enough to seal the joints. Jim __________________ 1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC

07-08-2009, 06:55 AM	#4
mrein3 Registered User Join Date: Feb 2000 Location: Center City, MN, USA Posts: 3,253	Re: LMC bolt on dual exhaust The exhaust 'kit' I bought for my 4x4 went right on with no problems. Everything was in the box except far a hanger for the side of the truck that didn't have one from the factory. That is the only thing I had to fab. The kits are drop shipped from http://www.heartthrobexhaust.com/. Quality stuff. I've had my system on there so long I already had to replace the mufflers once. __________________ '70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN

07-08-2009, 07:42 AM	#5
72WiscSub Registered User Join Date: Apr 2009 Location: Appleton, WI Posts: 75	Re: LMC bolt on dual exhaust Sounds like a good system. Thanks.

07-08-2009, 08:46 PM	#6
capev86 Registered User Join Date: May 2009 Location: Eliot, Maine Posts: 1,314	Re: LMC bolt on dual exhaust i want to run that lmc truck stainless exhaust w/ x pipe on my 72 burb 3/4 ton 2wd. i will keeping the stock ram horn manifolds for big money savings, durability and better low end performance than headers provide. that will let my 406sbc breathe like it should!

07-08-2009, 09:28 PM	#7
72WiscSub Registered User Join Date: Apr 2009 Location: Appleton, WI Posts: 75	Re: LMC bolt on dual exhaust Yep the stainless x-pipe system looks nice, but a bit too pricey for me right now. Plus I have a stock 350 so I think the 2 1/4" system will be good. Even when I replace/rebuild the engine I am not going to go too high horsepower. I would like to get 280-300HP out of a rebuild. That's another day!

07-09-2009, 05:57 PM	#8
capev86 Registered User Join Date: May 2009 Location: Eliot, Maine Posts: 1,314	Re: LMC bolt on dual exhaust sounds good... i just hate to invest money and time into a vehicle and then have to do it over again a couple years down the road. i have been replacing fasteners on my 72 burb left and right with stainless so it will look nice for a long time. i can't remember how many times my dad was out in garage all night long with the air chisel seperating exhaust pipes on our aries wagon (now another project of mine) so he could put in a new section. his next car (now my 198k mile daily driver) was/is a 97 merc sable wagon and it was sooooo nice that it had a stainless exhaust.....only had to recently replace the cat converters (all one piece w/ a y pipe...ouch$$$) and it still has the same muffler and tailpipes that were on 11 years ago when he bought it. thank goodness lmc has stainless door sill plates...i only have to get a "vulnerable" one for the third door. o blah dee, oh blah da.....life goes on......

07-09-2009, 07:46 PM	#9
big mike71 Registered User Join Date: Mar 2009 Location: independence mo Posts: 2,111	Re: LMC bolt on dual exhaust I had 2 1/4 dauls with ram horns, put headers and 2 1/2 with flow masters it sounds 10 times better.

09-10-2009, 10:53 PM	#10
9teen69 Registered User Join Date: Sep 2002 Location: Austin, Texas Posts: 1,048	Re: LMC bolt on dual exhaust How much for the heart throb exhaust? __________________ 72 Cheyenne SWB C10 (daily driver) (Super fake cause I just love the glovebox emblem) 70 Camaro RS (frame-off in pieces) 70 Camaro RS (daily driver backup) 69 Custom LWB C10 (son now drives)

09-10-2009, 10:58 PM	#11
Tkmadone Registered User Join Date: Aug 2009 Location: Simi Valley, CA Posts: 193	Re: LMC bolt on dual exhaust I did it and was very pleased with the kit and how it sounds. Very good value.



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