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dual exhaust

Discussion in 'The Garage' started by BeaterBurb90, Aug 29, 2006.

  1. BeaterBurb90

    BeaterBurb90 Newbie

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    does anyone know where to get a good dual exhaust kit, preferably direct fit. i have an '87 blazer with flowtech headers and i am having trouble getting something to fit.
     
  2. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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    Just let the local Meineke bend one up... Our local guy rocks... cheap too...
     
  3. Metrodps

    Metrodps Strange but nice guy GMOTM Winner Author

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    Well for stock duals I would go with LMC they are for a long bed but easy to trim. If you have the header flange to regular just use them $169.95 and no worries about any missing parts ;)
    http://www.lmctruck.com/icatalog/bzc/0093.html

    Been on my truck almost a year and still great I drive it almost every day.
     
  4. Chevy305

    Chevy305 6 Lug 14bsf Status Premium Member GMOTM Winner

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    X2 on LMC exhaust
     
  5. tiger9297

    tiger9297 1/2 ton status

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    I had looked at the LMC exhaust for my '90 K5. It doesn't say it will fit a '90 but seems like it should. Am I correct in assuming it will? Also, I'm in the process of putting in a MPFI 468. Would this exhaust work w/ a BBC?
     
  6. tiger9297

    tiger9297 1/2 ton status

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    When most of the "local" shops bend the pipes don't they have a crimp in them that reduces the size of the pipe unless they are mandrel bent? Can Meineke do this?
     
  7. Metrodps

    Metrodps Strange but nice guy GMOTM Winner Author

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    They should fit.... Go to an auto parts store and look at the exhaust pipe book for a 1973 - 1978 Blazer with a big block and compare the pipes in the pictures. In most cases where the body hasn't changed I believe you can use earlier pipes on vehicles.
    I say this based on the fact that I put dual system on a 1980 Camaro Z28 using 1974 pipes just had to modify the doughnut flange and shorten the pipes before muffler. The basic V design of motors should be the same and exhaust manifolds haven't changed that much. Check the exhaust manifold styles to compare.
     
  8. SkysTheLimit

    SkysTheLimit 1/2 ton status

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    I called around and none of the meineke / midas / etc shops did mandrels much less the 3" pipe i want. I found a guy around the corner from my house who's going to do mine but he's a independant shop not tied to a big chain.

    I looked at the LMC pipes too but they're too small. Like 2.25 i think. Maybe 2.5.
     
  9. tiger9297

    tiger9297 1/2 ton status

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    Yea I'm being told I need 3" pipe for the BBC. You would think that in all of these off-road magazines there would be a place that sells complete exhaust kits for out trucks. Anyone, know of one? I definitely want to buy a mandrel bent kit. No need in going w/ 3" pipes if they are going to be shrunk down to 2" in the bends.
     
  10. Chevy305

    Chevy305 6 Lug 14bsf Status Premium Member GMOTM Winner

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    Ya the LMC exhaust wouldn't compliment a healthy big block.

    I think Flow Master makes at least cat back systems for our trucks :dunno:
     
  11. tiger9297

    tiger9297 1/2 ton status

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    Flowmaster is very proud of their products too. $$$$$$$$$$$$$$$$$$ I want to run two pipes w/ two mufflers from the engine back. I definitely don't want to have to pay for two flowmasters.
     
  12. Col_Sanders

    Col_Sanders 3/4 ton status

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    I think Summit Racing has a couple full kits with mandrel bends. I think they are 2.5" though. I had a local shop do mine recently.
     
  13. Metrodps

    Metrodps Strange but nice guy GMOTM Winner Author

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    I got your Jeep thing and now it burns when I pee!

    At the risk of being an old fart. I feel that if the BB needed bigger pipes then back in the 70's they would of come from the factory that way. The 1979 C20 I had with a 454 in it only had 2.5" pipes. Unless you have so radically changed your motor most engines need some back presure.

    Before you start pulling out flow test remember I said "most", not all engines. If you want the bang just run headers and straight pipes :rolleyes: or while your at it go with stainless steel pipes for it. All I am saying is it is your truck you decide what you want and do it. The key here was a good dual exhaust kit, preferably direct fit.
     
  14. tiger9297

    tiger9297 1/2 ton status

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    2.5" may be fine, if I can get a kit w/ a good fit then that works for me. I don't want LOUD I just want a good low rumble.
     
  15. TeK

    TeK 1/2 ton status

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    when I swap in the 572 I'm building I'll be running some drag style headers w/ 4" collectors into 3" pipe into a pair of spintech XL mufflers into 3.5" pipe after that.
     
  16. Metrodps

    Metrodps Strange but nice guy GMOTM Winner Author

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    I don't have digital video recorder or I would go out and record what mine sounds like. As best as I can describe the LMC system it has a lower level sound as far a db than stock Harley for the throaty level. I get looks when I get into mine with a hard foot.

    I have paid more for exhaust and not been as happy. I priced the parts from Murray's Auto parts and was shocked! If you want a good sound that won't get you a ticket or draw attention to you then yes go with LMCs. By the way I have had a Harley *loud pipes save lives*, true race cars 1/4 mile use only and street toys with headers and all the jazz of the 70's *including Nitrous Oxide and I love my exhaust on my Blazer.
     
  17. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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    Well.... I'm spoiled.... Our local Meineke guy is amazing.... 10 time bender of the year awards and all that... and yes, he does mandrel bends... Very, very reasonable prices too...

    I just sent a kid from work over there for exhaust on his Dakota.... He loved it, and the price.... Bought me lunch for turning him on to the place...
     
  18. gmc4cw

    gmc4cw 1/2 ton status GMOTM Winner

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    I have a complete setup from Dynomax on my truck. it's 2.5" and mandrel bent. the kit only comes with pipe you need to buy the mufflers seperate. was about $150 couple years back.
     

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