Well to be honest, I have no experience with the Indy stuff. I'm sure alot will depend on what your use of the car is. I do however have a limited experience with tunnel rams. I'm a trial and error guy, and sometimes that's cost me $$. But i also learn more that way. My car is all street, with the occasional romp. It's reliable and and can drive it anywhere. Don't see myself ever going back, unless I want to put the stock hood back on. I say if you can afford it, do it!