Allot of leggy lads will tell ya to but the standard Re circ valve back on due to the possibility of over fueling - i personally have it on my car for past 2 years - Blitz one and all is perfect. Its your choice. Even had the car plugged in on a dyno and the fueling was perfect.Paul555RA said:As above the leggy im after getting has a blitz dump valve fitted but i have a forge one sitting here as well just wondering what the consensus would be on best one to fit