I must say I am very impressed. I would consider it a large difference in performance. I need to adjust the waste gate because I actually over-boost at times, otherwise no problems at all. IPD's service is really as good as everyone says and yes that is worth the extra money to me. They are very knowledgeable, friendly and have an excellent product and all that does justify a high ticket. Exhaust is on it's way and will arrive 7/2. I will inform as to how that went. I hope this post will help someone make up their mind like I needed help with.