Reviewed By Thomas H (SANTEE, CA) Reviewed for a 2007 Saab 9-7X —10/27/2016 8:16 PM
I bought one of these off Amazon, from an unauthorized seller - no warranty, and probably outdated stock. Returned it and bought one from AA - fresh updates, manufacturer warranty, and it was $30 cheaper than the Amazon one. The device works great, 4 cyl mode has never kicked in, the engine is a Jasper reman and hopefully will never have the oil burning, failing internals , etc that AFM causes in the 5.3l engine