I like the Roush performance philosophy for parts that work as advertised with no overstated claims. The parts are of a high quality and are easily installed with clear directions. I've found additional performance at about 4500 - 5500 RPM along with more intake sound and as a bonus greater gas mileage of 27 -28 MPG on highway trips and 19 -22 MPG on local trips if I can keep from goosing the gas every few miles!
The Roush Cold Air Kit has a simple yet effective design and doesn't require a tune. You can't beat the price and ease of installation. It only took 25 minutes to install on our 2012 GT/CS. The Air Filter Box could have used a fastener for the sound tube like the factory box. However, a simple plastic wire tie did the job just fine. Roush products are first rate and this Cold Air Kit is no exception.
I looked at many CAIs for my 2011 GT. What I like a lot about the Roush is price and ease of install. It's about $100 less than most other CAIs. Roush is an excellent Ford supplier. And this unit utilizes the stock air inlet tube to the throttle body - making installation very fast and easy. I'm hoping for 8-10 HP gain, and 1-2 MPG gain, we'll see. It looks great, and I'll feel and hear the differenct the next time I'm on the track.
The Roush CAI is a good add on. It's easy to install. You're Mustang will breathe easier. The CAI will give you a bit more HP. The only drawback is there's no place to reconnect your OEM MAF wire clips.
2010 4.6 was definitively out of breath with the Diablo Tune. I expected some improvement, but this CAI put it over the edge. Mash the pedal now, hold on and get ready to steer both the front and the rear.
Fast shipping! High quality product! Car seems to run and responed better! Shifting is smoother....sound wise. Exhaust tone is cleaner and quieter :( didnt expect that one. Drone is pretty much gone (x pipe, no resonators, flowmaster outlaw axle backs). Very easy and quick install took about 15 minutes (I watched the roush install video until my eyes bleed while waiting for the intake to arrive and didnt even have to read instructions). No extra intake noise that I can tell but the outlaws are pretty loud and may be covering it.