When we remapped the stock Diavel V4, we knew that more was available and we just had to realise the true potential of this bike. The system was designed from the ground up, hand in hand with our ECU Remapping to perform perfectly. The exhaust along with the supporting ECU remap released 14bhp over a stock bike and 9 bhp over a stock bike with a remap. Not only did we increase the power but the engine spool up times were drastically reduced and the power delivery is now instant with no latency in the throttle response. The power figures may be great but the sound is something else! We're thrilled with the sound which is now in keeping with the character of the bike. The bike now sounds as well as it performs!