I am biased on which kit to buy. This info is generic. Make sure the person/shop who builds the cage is familiar with SCCA/NASA rules. I have seen several really expensive cages that would not pass tech, due to improper design. Circle track guys do things one way. Drag racers another way. And neither may be legal for road racing. Preferably they will be familiar with building cages for very small cars. Every 1/4" counts in these cars. Every 1* of bend counts. If/when you go to sell the car, having a known cage in the car is plus that may exceed the initial expense
Doing the cage right the first time may be a little more expensive. Doing it wrong the first time is really expensive.
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