Thats because you don't see the inch an half lowering Arc for drag racing he put's in them from his Jig on the Uppers. If you Dump your Turbo out the side, No problemo..Other wise, Good Luck...I grant him-TRZ-Brian was it? He has the best G-body "" drag racing"" a-arms out,it's when you get into turbo car an the routing you get issues.Plus there not durable enough for daylie on the street car. He had to set another customers car (a GN) whole front clip straight once,since then he'll never work on another GN. (I asked,i tried, no dice,he refunded my bars) this was 2 years ago.