Audi A4 Quattro B5 1.8T - Weistec Cypher Handheld Programmer Tuner: This Device Flashes The Tune Onto Your Vehicle Thru The OBD2 Port. Includes ...

Burger Motorsports JB4 Tuner: Plug & Play Tune With Gains Up To 120Hp/130Lb-Ft. For Audi

Unitronic Performance Software - Flashed @ ECS: Choose The Stage That Meets Your Power Goals! For VW, Audi

Audi A4 Quattro B5 1.8T - Tunezilla Stage 1.5: Average Gain Of 51 Horsepower And 65 Lb-Ft Of Torque On 93 Octane @ 18 PSI

Audi A4 Quattro B8 2.0T - Integrated Engineering Stage 1 IE Performance Tune: Average Gain Of 59 Horsepower And 56 Lb-Ft Of Torque On 91 Octane

Integrated Engineering Stage 1 IE Performance Tune - Includes DSG Tune: Average Gain Of 68 Horsepower And 111 Lb-Ft Of Torque For VW, Audi

Audi A4 Quattro B5 1.8T - Eurodyne Maestro Tuning Suite - With Powertap Air Flash Tool: Ideal For Shops And Enthusiasts Looking To Recalibrate ...

APR Stage I Performance Chip - 1 Program - Direct Port: DIRECT PORT ONLY - Vehicle Must Be Brought To ECS For Audi, VW

APR EFR7163 Turbocharger Kit : Complete Bolt-On Turbocharger System. For Audi, VW

Audi B5 S4 - Solo-Werks Audi B5 A4/S4 Solo-Werks S1 Coilovers : Set Your Vehicle Low And Tight For Optimal Performance

Unitronic Performance Software - Stage 2: Gain Up To 87 Horsepower And 106 Lb-Ft Of Torque On 93 Octane For Audi, VW

APR Stage 1 Performance Chip - Fully Loaded: The APR Stage 1 ECU Upgrade Is The First Step Towards Making More Power! This Simple Upgrade Requires ...

APR Stage 1 Performance Software Upgrade: Gains Up To 74HP & 98TQ On 93 Octane For Audi

Fits 1996-2024 Audi A4 - Performance Tuner Chip Power Tuning Programmer

APR Stage I Performance Chip - 1 Program : Gains Up To 15HP & 14TQ On 93 Octane For Audi

Burger Motorsports JB4 Tuner: Features CAN-Bus Connectivity For More Advanced Tuning - Gain Up To 45Hp/45Lb-Ft On A Stock Car, 100Hp/70Lb-Ft ...

Audi A4 Quattro B5 1.8T - Schwaben VW/Audi Essential Tool Kit: Get All Of The Special Tools You Need To Take On Your DIY Projects

Audi Performance Chip +30 Horsepower Stage 3 OBD Chip ECU Programmer Module X4 Racing Engine Race Power Tune Tuner Plug Play Viper