Anyone ever used them for Custom made Exhaust's??

They have just given me a quote of £274.99 for a Cat back System, which seems pretty good to me....

Dear Mr Mitchell
'AWARD WINNERS OF CUSTOMER CARE 2005'


This is Jay from MIJ Performance Walsall

Thank you for your enquiry.

The cat-back stainless steel exhaust system you've requested for your Vectra 2.2dti will cost only £274.99 this is fully inclusive of fuel discount (£25), vat & fitting.
I've included a round chrome polished tailpipe in the quotation, you can choose an alternative or upgrade from our extensive range of 40 tailpipes if you wish.
One question though, whats a "Fuel Allowance"??