WR1 Owners Club

So the questions is.. Would a change of backbox improve performance?.I hear mixed views on this.

It wouldn't make any noticeable difference to performance but something like a Firestorm, Afterburner or Blitz Nur Spec would make a difference to the sound

WR Blue WR1 with 333 BHP wrote:It wouldn't make any noticeable difference to performance but something like a Firestorm, Afterburner or Blitz Nur Spec would make a difference to the sound

And your insurance premium...

I've got an Afterburner Vortex, Scoobyworld advised would increase BHP 3/5 so no real gain, but after 3500 miles the sound has taken over, IMHO, there are 3 other WR1 in my town all runing standard back boxes, so I have cars to compare when we are passing each other