We highly recommend scanning the engine ECU of your S4 before starting this procedure. If you have fault codes stored in the ECU, be sure to address their causes first. Pre-existing problems will result in poor operation after installing the RSK04 fueling kit. See our troubleshooting guide on Page 7 for help on fixing common problems found both before and after install of our fueling kit. AWE Tuning 2000-2002 Audi S4 RS4 K04 Fueling Kit The AWE Tuning RSK04 Fueling Kit picks up where the Audi RS4 leaves off!

The AWE Tuning RSK04 Fueling Kit picks up where the Audi RS4 leaves off! AWE Tuning worked very closely with GIAC to establish the proper mechanical parameters which would overcome limitations in the RS4 that GIAC documented during chip development. The RS4 Mass Air Flow (MAF) sensor and fuel injectors are inappropriate for use on an S4, and we also had our sights set even higher than chipped RS4 territory with the RSK04 kit. Important System Requirements: Please note that we do not recommend using an open air filter element (cone filter) with the RSK04 Fueling kit. We have not documented any power gains with an open air filter element, and use of one requires modification to the MAF housing to ensure proper air/fuel delivery. Use of cone filter without modification to the MAF housing can cause engine damage. Please contact us for more information. The AWE Tuning RSK04 Fueling Kit is designed to work only with the RS4 K04 turbos installed. The requested boost pressure from the GIAC chip is beyond the safety level of the S4 K03 turbos. The AWE Tuning RSK04 Fueling Kit is also designed to work only with high flow downpipes installed (no pre-cat), as well as a cat back exhaust system. The AWE Tuning/GIAC chip program is designed only to work with the secondary O2 sensors located behind the main catalysts. If your downpipes do not have the secondary O2 sensors located behind the main catalysts, the fuel injection ECU will log a catalyst efficiency code and illuminate the check engine light after 50 miles of driving. Copyright 2007 Secor Ltd awe-tuning.com Page 1 of 8 Parts list: 6 Balanced Bosch fuel injector 4 Aluminum spacer 4 M6×20x1 socket head bolt 4 M6 washer 2 40-60mm hose clamp 1 AWE Tuning MAF housing with sensor adaptor 1 MAF laminar flow screen (for stock airbox use only) 2 3mm socket head bolt 1 Engine coolant temp sensor 1 Silicone 3-way MAF hose 1 Aluminum plug 1 16-25mm hose clamp 1 80-100mm hose clamp 1 90-110mm hose clamp 1 AWE Tuning/GIAC engine chip order form 6 NGK PFR6Q spark plug 1 Intake system Pressure Tester kit Required specialty tools: 1 Torx T20 Security tool 1 5mm Allen head tool 1 3mm Allen head tool 1 Brake Cleaner Spray 1 Blue Loctite 1 Superglue 1 Scan tool Install time: Approximately 2.5 hrs We highly recommend scanning the engine ECU of your S4 before starting this procedure. If you have fault codes stored in the ECU, be sure to address their causes first. Pre-existing problems will result in poor operation after installing the RSK04 fueling kit. See our troubleshooting guide on Page 7 for help on fixing common problems found both before and after install of our fueling kit.

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