Does anyone on here use one of the Range Technology Range V8 AFM disable modules for GM vehicles? You plug it into your OBD2 plug and it keeps the engine from switching between V8 and V4 mode. Supposedly doesn't leave a trace on the vehicle like a programmer. I found this when looking at the oil usage problem with the GM AFM engines. I'm considering getting one over a programmer so that I don't void my warranty. Any thoughts?
http://www.rangetechnology.com/pages/v8
http://www.rangetechnology.com/pages/v8