It depends on how much efficency but if it wasn't too bad I'd do it honestly ....from research I was under the belief the pre ignition was put on to quieten the engine down by 3db and to make it more emmisions friendly.
The injectors I got had only 90k on them and being the 076's I thought I'd have been OK as people are reporting 180k on those with no Rattle.
Although just been for a 30 mile drive and once the engine is to full operating temp the Rattle is quieter but still quite noticeable under light acceleration and low rpm.
The injectors I got had only 90k on them and being the 076's I thought I'd have been OK as people are reporting 180k on those with no Rattle.
Although just been for a 30 mile drive and once the engine is to full operating temp the Rattle is quieter but still quite noticeable under light acceleration and low rpm.