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CharlieSheen · 09-21-2014, 07:17 AM

I tried to order a set of these online through one of the online GM parts suppliers,and after the order was processed,was told that the left hand manifold #12600526 was not available,with no date for availability.Following up,they tell me it is most likely that the left TBSS manifold has been discontinued.Being that these manifolds was used on a fairly limited amount of vehicles it is likely that GM will just sell what is left,and that will be it.The right hand and heat shields are currently available.

Dorman has an aftermarket manifold,appears to be the same,but is more than double the cost.

09-21-2014, 07:17 AM	#31
CharlieSheen Registered User Join Date: Aug 2013 Location: NY,NY Posts: 107	Re: Stock Manifold Options for LS Swaps I tried to order a set of these online through one of the online GM parts suppliers,and after the order was processed,was told that the left hand manifold #12600526 was not available,with no date for availability.Following up,they tell me it is most likely that the left TBSS manifold has been discontinued.Being that these manifolds was used on a fairly limited amount of vehicles it is likely that GM will just sell what is left,and that will be it.The right hand and heat shields are currently available. Dorman has an aftermarket manifold,appears to be the same,but is more than double the cost.