HTT Promax "McRat" exhaust housing size.

Ben46a

Wannabe puller
Sep 4, 2006
275
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40
Waverley, NS, Canada
I know the charger is a 66/73, but is the exhaust housing an 13cm or 16 cm? im assuming 16 CM due to the duramaxs displacement and operating range. Im going to move the charger to a different make engine and was wondering what im going to have to tune for.