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I would just like to take a little time and thank Spartan Diesel for the tunes I received yesterday. I didn't get them until I came into work today but when I did I immediately put the aggressive race tune in my truck and all I can say is wow. This tune outperforms any level on my six gun hands down. I am extremely pleased with the way it performs and how amazing the service was at Spartan. These guys rock! Now I know where my truck is going when funds permit
