My Girlfriends DAD use to order alot of chips and programmers from Hypertech and he could always get better prices on them than say like JEG'S or somebody would sell them for, and plus it has been about 2 1/2 years ago since I bought it so they have probably gone up in price. I mean you can pay 50 and get the housing and 160 Thermo from Hypertech, or you can order just the 160 thermo from SLP for 25 and use your stock and you should have no problems.