good converter and cooler???

are these's good and will they work on a 94 z28


this converter

http://store.summitracing.com/partdetail.asp?autofilter=1&part=TCI%2D243105&N=115&autoview=sku

and this cooler

http://www.lmperformance.com/2307/1.html

that doesnt eve have an antibalooning plate for nitrous...go to fuddleracing.com....give john a call, talk to him about ur car and your goals...he will set you up and their converters are reliable well made and cheap
i cut 1.65 60 on one in a full weight car all day

i already bought it new for $250 shipped and i will never put nitrous on my car i dont want to take the risk