I love that Reiger kit; makes me wish I hadn't gotten the VW kit. Overall, that's a solid setup for a moderate street GTI. The kit and GHL exhaust are a nice touch visually (likely the best way to go for quad tips), but keep in mind that the 3" setup won't play nice with all ECM upgrade choices (if you think you'll want this in the end.) The jury's still out on whether it will affect your top-end power on a stock program. If I'm thinking right, GIAC and Revo chips are optimized for a 2.5" or 2.75" exhaust. APR doesn't say anything about tuning for exhaust airflow, but they do make a 3" exhaust, which they naturally recommend.