Ok. Today I installed the RRM intake...installation was a breeze and fast. I disconnected the battery and within 15 minutes I was done. Throttle response was instant! The intake made a huge difference in performance. I drove 50+ miles playing around trying out the intake. Driving the Fiat now is like driving a whole new car. Keep in mind, it was 96 humid degrees in Georgia today. Very hot! The intake performed great even with all the heat. The hp gain is very linear all the way to redline. The intake sound is amazing. Not too loud, but just right. It doesn't sound like a Honda intake, I really can't explain it, but sounds good. I was skeptical about the intake sucking hot air and losing performance. I parked and lifted the hood and was surprise the intake wasn't very hot. I closed the hood and sat there idling for a few minutes to let the engine compartment to get hot and see how the intake did when hot. Mind you the ambient heat index was 102F. I took off for another test drive. I'm not a dyno, but the performance felt the same. Great response, great increase over stock. I'm 100% happy with the intake. I suggest you guys get one. You won't be disappointed.