Originally Posted by NicholasP
But why just the manual 5.0's with no cats? I have a 2011 v6 automatic with cats haha
Bama only produces Bama Cam tunes for 5.0's with catless mid-pipes because of the nature of the tune. The "Cam" lope sound is caused from additional intake and exhaust valve overlap. When you increase the overlap at idle, you must increase the fueling to prevent stalling or surging. With the increased fueling and extra valve overlap, lots of unburnt fuel gets pushed into the exhaust. From there, the unburnt fuel will build up and eventually clog the catalytic converters, even if they're high-flow aftermarket cats!
Also, during Bama's R&D testing, we found a Cam tune will work perfectly on one v6 and not another. Having 2 less cylinder's, the engine is very prone to surging with additional valve overlap, compared to the 5.0 v8. This inconsistency is why Bama does not offer a Bama Cam tune for the 3.7 v6.
Lastly, the factory automatic torque converters have too low of a stall for a cam tune or even radical aftermarket cams. With such a low stall, surging and stalling is inevitable.
Hope this clears everything up. Let me know if you have any other questions!