The cage in my car will cert to 8.50, but the combo I'm putting together will be capable of going a bit quicker. Currently it is mild steel, and I can add bars to meet the 25.5 spec. Since I'm going to be in there anyway, I'm wondering if its worth it to just go 4130 and build to 25.3, or too much of a headache. Anyone here who has made the change? Pros? Cons? Any feedback is appreciated. I plan on keeping this car for a while.