Today I took my Dinan off and installed an Alta and I am surprised at what the "butt dyno" feels. It feels like the Dinan winds up much faster and the Alta makes more on top. The engine seems to have more torque down low with the Dinan and I'm not sure if the Alta performs better on top or not but it might be a tad smoother on top. Considering the sound I am thinking of going back to the Dinan so I can hear my exhaust again.

Have any of you run numbers on these two?

 

What???? You don't like that added whine? I love the little sucktion noises it makes at partial throttle settings. Guess it's everyone has there thing.

If you want exhaust noise take a ride in my car. . You can ask Eric at Helix about that. Deffinately had the loudest MINI at the Dragon.