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Send PMChampaign, IL - USA
Joined: 9/25/2010
Posts: 13
Vette(s): 1977 USA VETT... I am a Navy Vet and bought this car from a guy that's in the Army. He started the USA theme on this previously yellow yard decoration that he found. Now it is my turn to add to this tribute to Country and those that defend her.
I want side pipes!!! When I look for side exhaust, I always find that side exhaust for 1977 is for "off road use only". What is that all about? Can I put side pipes on my 77 or not? If yes... can you send info on where to get these?
Thanks in advance,
David
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Im pretty sure the "off road use" thing is basically stating you cant use em if you have any emissions testing. That having been said I just installed some hooker header and side pipes on my 77. They rock!
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Im pretty sure the "off road use" thing is basically stating you cant use em if you have any emissions testing. That having been said I just installed some hooker header and side pipes on my 77. They rock!
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Lifetime Member
Send PMHOWELL, NJ - USA
Joined: 5/18/2004
Posts: 6812
Vette(s): 1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.
If it's for performance use on a limited usage car that doesn't need a catalytic converter to pass inspection, you should be fine.
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Veteran of Operation Iraqi Freedom
101st Airborne(AirAssault!)
God Bless America
Support Our Troops 
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In my area of Western NY we are subjected to a visual inspection, no sniffer test. That left me with a dilemma to solve. I've always want "N11" '69 side pipes on the '81. Problem was if there was a catalytic converter installed, there better be one installed. Yes there are repair shops around that will look the other way and slap a inspection sticker on. But I don't want to put anyone in jeopardy of losing their inspection license and being fined on top of that.
Sooooo......I went do to the local muffler shop and searched through their assortment of "OBD I" compliant catalytic converters. After selecting a set of cats I commenced to cutting, grinding, tack welding. After many hours I fitting them into the head pipes with plenty of clearance between the frame and the ground. Everything came out even and symmetrical.
I was going to finish smoothing out the welds and have them ceramic coated but I'm going to wait until after I do the "Baby LS1" install next year. I know I will be cutting and refitting the head pipes again. I also want to fit a crossover or "balance" pipe between the head pipes to hopefully enhance the sound a bit.
If you click on my cardomain link below there should be some pics of my cat install.
Sooooo......I went do to the local muffler shop and searched through their assortment of "OBD I" compliant catalytic converters. After selecting a set of cats I commenced to cutting, grinding, tack welding. After many hours I fitting them into the head pipes with plenty of clearance between the frame and the ground. Everything came out even and symmetrical.
I was going to finish smoothing out the welds and have them ceramic coated but I'm going to wait until after I do the "Baby LS1" install next year. I know I will be cutting and refitting the head pipes again. I also want to fit a crossover or "balance" pipe between the head pipes to hopefully enhance the sound a bit.
If you click on my cardomain link below there should be some pics of my cat install.
GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975
Click here to see more pics of my Vette on CarDomain.
Lifetime Member #26
Borgeson Steering Box
Born 8/1981
Sequence #3975
Click here to see more pics of my Vette on CarDomain.
Lifetime Member #26
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Purrrfection.....as usual! can't wait to see it!
ebo
eboBe the first to like this post
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I had them on my 75,however they don't weather well if you don't have a garage.I just had mine taken off this past weekend.That said the do look cool
on a C3.
Rick
on a C3.
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Send PMChampaign, IL - USA
Joined: 9/25/2010
Posts: 13
Vette(s): 1977 USA VETT... I am a Navy Vet and bought this car from a guy that's in the Army. He started the USA theme on this previously yellow yard decoration that he found. Now it is my turn to add to this tribute to Country and those that defend her.
I appreciate all the comments!
I suspected the emission thing... no big deal here in the midwest! Hope to get some soon... Time to go shopping :-)
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Send PMChampaign, IL - USA
Joined: 9/25/2010
Posts: 13
Vette(s): 1977 USA VETT... I am a Navy Vet and bought this car from a guy that's in the Army. He started the USA theme on this previously yellow yard decoration that he found. Now it is my turn to add to this tribute to Country and those that defend her.
Thanks for the link!
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in Forum: C3 HVAC, Fuel, Emissions, and Exhaust
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