I have a halfway complete turbo kit thats been sittin my garage for years. Unfortunately I lost the adaptor plate I bought for my hf manifold. I need another one and on http://www.bmcrace.com/index.php?cPath=60_62_71 it has a T3 hf adaptor and a T3 hf 1/2 inch adaptor. Whats the difference between the two and which one do I need?

 

the thickness, correct me if im wrong, but the other one is 3/4 of an inch thick. It says in the description that its an economic design, cheaper because its thinner steel. I am sure both will work the same. depends if u want to add the bling factor or not.....

 

Oh ok so it has nothing to do with retaining a/c or p/s

 

no.....i had ditch my ac with the HF PS. was not a problem.