B8 Audi A4 Avant Gets S4 Powertrain Swap for Max Performance

This Audi A4 Avant S4 clone mimics something that wasn't sold in the U.S., and the results are quite impressive.

B7 Audi A4 LS4 AWD swap - LS1TECH - Camaro and Firebird Forum

Worlds ONLY Tesla Swapped Audi! How Did He do it?

Audi A4 with a Supercharged S4 Powertrain – Engine Swap Depot

Thoughts on this APR Stage 2 B8.5 S4 : r/Audi

Performance sport exhaust for Audi S4 B8, AUDI S4 QUATTRO (Sedan +

Audi's new 4.0 TFSI engine - QuattroWorld

World's most expensive Audi All Road - The BallRoad - RS5 Motor

Front-Wheel-Drive Audi A4 2.0 TDI Turned Into V8 Quattro Machine

Top 8 Upgrades for your B8/B8.5 Audi S4

Audi S4 - Wikipedia

Transmission Rebuilt - 0B4 MT - LATE NAA (JHM Performance-OEM

Audi RS 4, Need for Speed Wiki