Jakk
ermm.. I dont think its recommended. if your original bumper is roundish like wira OEM i doubt it will fit. it needs a base to hold onto it.
what car is it that yuu are planning to fit?
recently only i find out that the boost that i had set on my HKS EVC1, which was at 1.4bar..was actually not achievable on my 1st and 2nd gear..... on 3rd ,4th and 5th yess i could achieve that...