Best B5 Mods (A4 And S4) Which Are Really Worth Your Money?

Audizine Forums

This Rare Tuned 2001 B5 Audi S4 Ups the Panache of a Classic

List of cheap or free mods

DT: 2002 Audi S4 Quattro 6-Speed

Just picked up my first B5 S4, what's some good mods and tips for these cars? : r/Audi

Audi A4/S4 B5 The Good, The Bad, And The Ugly…

My S4 Widebody (Warning long post and lots of pics inside!!!)

Audi A4 tuning tips and A4 performance parts

Audi S4 (B5) Sedan 2000 : r/assettocorsa

02' Audi S4 Avant - Tasteful mods $29,000

Anyone have experience with a B5 S4? - ClubLexus - Lexus Forum Discussion

THE FULL MOD/BUILD LIST ON MY STAGE 3 B5 AUDI S4!!

Audizine Forums

What is the best year of Audi A4 to buy second-hand? - Quora