bit of a random question....

i have a magnex exhaust and it sits really low down off the back bumper, was just wondering what exhaust rubbers people use as everyone elses seem to sit nicely under the bumper.

at the moment i got a £1.00 jobbie from Halfords.

heres a picture, apolgies for the size...



also are there any tips for removing oversprspray from the backbox?