Will LPG negatively effect the exhaust notes?

[v8vroom]

Hi all,

If I buy an XJ8 3.2 V8, I plan on doing an exhaust mod to let the V8 noise out.

1. Will LPG have a negative effect on the exhaust notes?
2. Would I need to recalibrate the system if I proceed with the exhaust mod?

[Gilbertd]

1. No
2. No as it slaves off the petrol system so if you had to remap the petrol system, then the LPG system would follow it.