mm or 75mm Throttle body?
70mm is the largest I’d suggest on a relatively stock car. With a 70mm throttle body, there will be a slight gain in throttle response and maybe some horsepower. Many will argue that it costs horsepower, but I felt a gain on my personal car. A 70mm throttle body and our ported upper plenum are a great combination and you’ll definitely notice a difference. The 75mm throttle body works very well with the AED kits. This is not suggested for a naturally aspirated car.
