4 Horsemen Racing

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 CEL eliminator 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. FOR OFF-ROAD USE ONLY!
Emissions laws vary by state and by province. Check local and federal 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.

NOTE: This part does not guarantee that the CEL will turn off.

INCLUDED WARRANTY

12 Months
All CTS Turbo products are warrantied against manufacturing defects for a period of 12 months from the date of invoice. Warranty does not cover abuse, misuse, consequential damages, normal wear and tear, improper installation, or damages resulting from racing. Warranties only apply to the original owner. If a product is found defective the customer will receive, at the discretion of CTS Turbo, free repair or replacement. Warranty on other manufacturers will be processed under their terms.

DESCRIPTION

The CTS Turbo B8/B8.5 Audi A4/A5/AllRoad/Q5 1.8T/2.0T Test Pipe is the premier test pipe for your Audi.  Our test pipe is designed to seamlessly fit in place of your restrictive stock catalytic converter, which is situated immediately after the turbocharger.  Our test pipe features 3″ stainless steel piping, smooth mandrel bends, two 02 sensor bungs with an option for a third.  Substantial power gains, improved exhaust flow and a more throaty sound are the main benefits of installing our test pipe.  Upon inspection you will notice a flare which is nearly 4″, this flare then tapers to 3″ and is designed to allow for optimal flow as the exhaust gas transitions from the turbocharger to the test pipe.  In addition to being one of the best bang for the buck performance upgrades for A4/A5/AllRoad and Q5 owners, our test pipe is also a very attractive piece.  Each 3″ test pipe is mandrel-bent, hand tig welded.  Do you need an additional 02 bung for data logging?  Well, that’s no problem!  Extra O2 bung is now included at no extra charge!

Product Details:
– T304 stainless steel construction
– Mandrel-bent stainless steel
– Fully tig welded design
– Extra O2 bung for wide-band sensor
– Install hardware included
– Throaty sound
– Great power upgrade

To remove the CEL that will occur, proper tuning software must be used. CTS Turbo recommends choosing a High Flow Cat for the sake of our environment!

Use of stage 2 software upgrade is strongly recommended.
FITMENT

Fitment for factory turbo and CTS-TR-1070

• B8 and B8.5 Audi A4/A5/Q5/Allroad
• 1.8TFSI EA888 Gen 1 and 2.0TFSI EA888 Gen 2 ONLY! For late ROW cars with EA888 Gen 3 engine, see CTS-EXH-TP-0006 (B9 2.0T fitment)
• Only fits LHD vehicles. Fits manual and automatic transmissions, does not fit CVT.

DESCRIPTION

The CTS Turbo Catless Downpipe BMW B58 is made to maximize exhaust flow for highest power gains. Do not compromise performance and sound with factory parts – unleash your BMW’s potential!

Designed using the latest in CAD technology; this part is made to fit perfectly in place of your factory downpipe. Manufactured from T304 stainless steel, hand TIG welded and back-purged to ensure years of reliable performance.

Product Details:

• Precisely designed and tested on a real car in the real world
• T304 stainless steel, TIG welded back-purged construction
• Replaces restrictive factory downpipe
• Great power upgrade with uncompromising performance
• Incredible sporty exhaust sound, subtle when cruising
• No drone with factory exhaust

Use of Bootmod3 stage 2 software upgrade is strongly recommended to avoid the CEL from coming on.

• 2016+ F20 BMW M140i
• 2016+ F22 BMW M240i & M240i xDrive
• 2016+ F30/F31/G20 BMW 340i & 340i xDrive
• 2016+ F32/F33/F36/G22/G23/G26 BMW 440i & 440i xDrive
• 2016+ G30/G31 BMW 540i & 540i xDrive
• 2016+ G11/G12 BMW 740i & 740i xDrive

INSTALLATION GUIDE