NO, the only time that the pats is bypassed is when the remote starter sends a ground signal to the module after YOU tell it to. Otherwise, PATS will work like normal. We sell for about $429 installed in a PATS car, but the starter itself can probably be purchased for under 80 on ebay. I recomend a 1250 model, but it must be a manual transmission model. They don't cost anymore, but you must use a manual transmission specific model. I personally have a compustar spread spectrum unit that is also an alarm with 1mile + range. If someone sets off my alarm, it will page me by beeping and vibrating. It is also a starter but sells for about $7-800 installed.