APR Audi S4 - APR ECU Upgrade
Up to 70 more horsepower for the Audi S4 (B9) with ABT power upgrade - AudiWorld
Performance chips – Chip tuning by RaceChip for Audi S4 (B9) S4 3.0TFSI (260KW) | RaceChip
Top Mods and Upgrades for the Audi B9 S4 – ECS Tuning
Audi B9 RS4, S4 & A4 Tuning, Remaps, Upgrades | Audi B9 | RacingLine
Innovative Performance Chip/Power Programmer compatible with Audi A4, S4 & RS4 1.8L, 2.0L, 2.2L, 2.7L, 2.8L, 3.0L, 3.1L, 3.2L and 4.2L - Improve Your Fuel Mileage, Save Gas & Gain MPG, Increase
VR Tuned ECU Flash Tune Audi S4 4.2 V8 B7 344hp 2004-2008 | VRT-S4-B7-4.2L
Performance chips – Chip tuning by RaceChip for Audi S4 (B9) S4 3.0TFSI (260KW) | RaceChip
Audi A4/S4/RS4 Parts - APR
Chip tuning my S4 - AudiWorld Forums
Shop B8/B8.5 Audi S4 3.0 TFSI Performance Parts & Tuning
IE Audi B9 S4, S5, SQ5 Stage 3 TTE710, TTE810, & Pure750 ECU Tune -Ava
Beginners Guide to Modifying a B8 S4 – Modded Euros Blog
Top Mods and Upgrades for the Audi B9 S4 – ECS Tuning
The Best Performance Mods For The Audi B9 S4 & S5 | Progressive Parts
RaceChip Performance Chip Tuning Kit For Audi S4,S5,SQ5 354HP 3.0T CWGD
2.7T Stage 1 Tune, B5 Audi S4 & Early C5 Audi A6/Allroad (APB) Performance ECU Upgrade
Audi S4 (B8) RaceChip Tuning Installation | Audi S5 A6 A7 A8 | 3.0 TFSI - YouTube
Audi Performance Parts: Audi B8 S4 3.0T Engine Upgrades by Michael Brett - Issuu
Chip tuning box Audi A4 3.0 S4 333 hp 440 Nm - Euro 5 (B8) | P-Tronic
Performance chips – Chip tuning by RaceChip for Audi S4 (B9) S4 3.0TFSI (260KW) | RaceChip
Audi S4 Must-Have Mods (B8 & B8.5 3.0T)
Tuning the Audi S4 and best S4 performance parts.
Top Mods and Upgrades for the Audi B9 S4 – ECS Tuning
