Chevycummins
Bad case of Tinkeritis!
- Joined
- Jul 15, 2008
- Messages
- 3,488
well i will try my luck in this section now. i have one of these turbos that has 12-4 casted into the exhaust housing at the turbo flange. i am guessing its a 12 cm housing but curious as to why it says 12-4 instead of just 12 or 14
