Ultimate Converters

“Ultimate” is arguably the best.
A lot of people also use Frank Lupo @ Dynamic

Quality Converters aren’t cheap. But a most worthy expenditure worth the investment. And your time (& money) to fo to the top of the game players.

I agree as I replaced an 11" TCI after many years of mediocre service. Best investment/improvement on the car since I've owned it. I will never use a shelf converter again. It truly made her a street/strip car.