Thats no Moon, Thats a space station!
Yup the 3 prong pipe is about £35 from the stealers as i had to replace mine when i bought the car last year. I also found a few other hoses were very soft and old so have replaced them too to help the system work effeciently.
I replaced my TIP with a cheap ebay jobby as it was really soft too so found a few other bits to replace then too.
As your not a million miles away (i`m in Southampton) can always show you on my car if your around one evening
Audi S3 8L BAM 225 2002 - Ming Blue : Silver Heated Leather, Armrest, RNS-E & Bose, Alloy Mirrors, Gunmetal 18" RSTT`s, Sunroof, Cruise, AutoDim Mirror & usual S3 extras.
Mods : Revo Stg 2 & Select+, FMIC, 3" DP & 200 Cell Cat, 007P (New Piston), Jetex Filter & 80mm TIP & Heatshield, LED Sides & Fogs, Gen VW Aero Wipers, Full Powerflex Kit, Lowered on AP Shocks & Springs, 15mm Front & 20mm Rear Spacers, N249 Delete & Catch Can, AP TVR 4Pot Brakes & DS2500`s, Sachs DMF & Carbon/Kevlar Clutch