Exhaust question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Recian · 08-30-2013, 07:11 AM

Are the exhaust systems for all 73-87 sbc's the same? I've got an 81 and I'm looking to add a dual system to eliminate the cat and pick up some power. I'm looking at this set

http://www.lmctruck.com/icatalog/cc/full.aspx?Page=159

Muffler shops in my state won't remove cats. They can only add new ones in. That being said it's cheaper to buy this set and have it shipped (about $330) than have a local shop build a system and pay for 2 new mufflers and 2 high flow cats. The only thing is LMC lists them up to 78 since after that they went to cat. converters and legally LMC can't sell them as a removal of cats. Manifolds on the SBC should be the same regardless of year correct?

08-30-2013, 07:11 AM	#1
Recian Registered User Join Date: Jul 2013 Location: New Bern Posts: 81	Exhaust question Are the exhaust systems for all 73-87 sbc's the same? I've got an 81 and I'm looking to add a dual system to eliminate the cat and pick up some power. I'm looking at this set http://www.lmctruck.com/icatalog/cc/full.aspx?Page=159 Muffler shops in my state won't remove cats. They can only add new ones in. That being said it's cheaper to buy this set and have it shipped (about $330) than have a local shop build a system and pay for 2 new mufflers and 2 high flow cats. The only thing is LMC lists them up to 78 since after that they went to cat. converters and legally LMC can't sell them as a removal of cats. Manifolds on the SBC should be the same regardless of year correct?



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