97I30touring

Thinking of lowering my I30 about an inch and a half or so. I know how to do it and what I need and all that good stuff, done it several times before. But will I need to camber the car. I drive roughly 20,000 miles a year, most highway, and I need my tires to last, if i have to camber, i probably wont lower. if anyone can tell me how their tires did when lowered, that'd be great. Prec..