Make: www.mijperformance.com

Specification: 2" Pipe work, Custom MIJ back box

Difference: The main reason for changing from the Powerflow to the MIJ back box was mainly down to noise. The Powerflow box was too droony at around 3000rpm, so I couldn't drive the car like I'd like, and was unable to push the car higher up the rev range comfortably.

Before

After

MIJ Custom Middle Box

Custom mid box

Make: www.mijperformance.com

Specification: 2.25" Pipe, 10" Box

Difference: With the new pipe work and mid box in place I quickly noticed the exhaust droning noise reduce. This could be down to two things, either  the slightly larger box, or  the diameter of the pipe work having the same circumference throughout, as the old pipe work did not have this.

Before

After