ie: Start up, hear sound. Engage tranny still hear sound and sluggish performance.
Initally is the symptoms are of the secondary air injection pump. Most of us have the sound and ignore it.

allroad FAQ SITE.
2003 Allroad 6 speed manual:
DRIVETRAIN:
• APR 5.0 93 Octane
• Stratmosphere Hyperboost Diverter Valves
• Toy Guy Short Shifter
• AWE-Drive Train Stabilizer.
• HP-2 Caliper Reverse Mod
• ECS Slotted F & R Rotors
• PBR Metal Master Pads F&R
SUSPENSION:
• Hotchkiss H-sport stabilizer bars F & R
• S4 Heavy Duty Tie Rod Ends Inner and Outer
• Falken Ziex 912 UHP-A/S
• Borbet FS 17 x 8 Wheels
• HR 12MM Spacers F&R
• 402 mod down 20MM
INFOTAINMENT
• Kuda Cell Phone Mount w/hardwired DC plug.
• Parrot Blue Tooth Cell Phone/GPS Module
• Palm Treo 700 with Tom-Tom Navigation
• Ice+link Plus w/Mini Ipod
• Sirius Replay Satellite Radio
• Hardwired V-1
MISC:
• Audi Trailer Hitch