Warranty suggestions or advice.?.?.?.?

Dixnot

little over a year ago i bought an 09 sport at carmax with 12k miles on it. Got the xtended warranty on it. After getting intake, test pipes with full catback exhaust and then an uprev tune... I was told by the tuner and carmax service guys that because of the tune it would void the warranty for the motor. So I cancelled the warranty and about $1,300 went toward the pay off. I owe far less than the cars worth but that's not really important. The car now has 38k on it and every time i go WOT, a little voice in my head says "hey bro what if you blow your motor" (ya the d-bag voice in my head says bro....but i do drive a z).

Here's my question.... Any suggestions for a warranty that would give me peace of mind. Or should i just cross my fingers for another 2 years till i trade up? I'm not hard on the motor at all WOT maybe 3-5 times a week.