+1 for the Speedtech. I have recently installed their 2.5" cross-flow system on my 996TT. Sounds amazing and as quattrosteph mentioned the system is modular so you can switch out sections of the exhaust any time you want to change the sound.
I ordered mine directly from Speedtech in the States. Not aware of any UK distributor.
I ordered mine directly from Speedtech in the States. Not aware of any UK distributor.