part of it is the feel of the user interface. You hear it being loud so you expect it to be faster. You don't gain much from an over/under the axle.

 

you're right, that could be true DTN, however i drove it with the silencer off and it was still slower than the under axle!

also with this overaxle, they installed it correctly. the edge of it hits the bottom of the car. muffler also sticks out too much. great tig welds, great quality on this OBX thing. what's this really good quality and craftsmanship for if it just not perfect?