CTS Turbo High-flow Intake (6″ Velocity Stack) B9 Audi A4, A5, S4, S5, RS4, RS5
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When a high-flow catalytic converter or test pipe is used on a late model car it’s guaranteed that CEL (Check Engine Light) will come on. This CEL is caused by a fault code that indicates an inefficient catalytic converter.
Our O2 Sensor Spacer is CNC machined in-house from high quality cold roll steel for a long-lasting effective performance.
Install this spacer on your REAR (downstream, post-cat) oxygen sensor to effectively remove the code for catalyst efficiency.This is recommended for vehicles that do NOT have “stage 2” software.
This product is not intended to and will not provide emissions compliance.
Emissions laws vary by Region and by Province.
Check local laws before modifying your exhaust system.
Emissions compliance is the sole responsibility of the vehicles owner.
This is a universal product that works on variety of vehicles, however it is not effective on some cars.
This product is not intended to and will not provide emissions compliance.
Emissions laws vary by state. Check local and federal laws before modifying your exhaust system.
Emissions compliance is the sole responsibility of the owner.
NOTES
- This part does not guarantee that the CEL will turn off!
- For Off Road Use Only!
- The use of de-cats, sports cats are for off road/motorsport use only.
- Using these parts on the road is at your own risk and in many cases would inhibit your vehicle from passing a MOT test and mean that the vehicle is no longer road legal.
Really nicely made and finished. Has solved the cel issue.
Paired with 034 HFC. Solved CEL and puts O2 sensor in much better position to install. Simple but effective.