I have a 91, 5.9 Dodge Cummins. It has the large exhaust housing and no wastegate, Can i put the exhaust housing from an HX35 on this?

 

After the 2nd Gens were released, a group of trucker did quite a bit of research on which exhaust housings were the best. They came up with the 16cm housing. The 12cm housing, even on a stock truck makes to much drive pressure, which isn't a good thing.

To answer your question though, yes, I believe you should be able to put the 12cm housing on your H1C. You may need to move the exhaust back an inch or so.

 

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