Review on 77 2578KS Performance Intake 09 10 Ford by Dan Dickey

Installation took about an hour and was fairly easy overall. With normal throttle the sound is normal, but when you press the gas pedal this 3.5 liter engine sounds like a beast and under hard acceleration it also makes a pleasant whistle. I also have an exhaust system on my flex and it made it a bit louder. It's amazing to see people's faces as you walk past them and there's a nice sound coming out of the exhaust pipe. Will it turn your flex into a race car? Wouldn't that absolutely put a big smile on your face as you press on your foot? Of course it will! This is an amazing product and I recommend it.