I've just been speaking to the "BFO Factory" about the sports cat and downpipe we're developing for the Astra G Turbo.
The parts should hopefully only be a few weeks, it's taken a while to manufacture the flange to fit the manifold properly, other ones we've seen don't tend to seal right.
The "full" turbo back BFO system should be £899.95 - this is £600 over the standard cat back system, and we've hoping for great performance figures.
As usual we'll offer 10% off these for Astra Sport members, making it £809.95 inc VAT (£689ish+VAT).
Shortly we should also have BFO systems for the non-Turbo, along with systems for the Coupe, N/A and Turbo.