Milltek Tuning Downpipe - SSXBM1037
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Demon TweeksMilltek 3" HJS Tuning Downpipe With 300 CPSI 103R Sports Cat. EC-Approved
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Product Information
Full details
The Milltek Large Bore Downpipe with Hi-Flow Sports Cat is designed for automotive enthusiasts looking to unlock significant power and responsiveness from their engine through improved exhaust flow. This component is an essential upgrade for those aiming for a Stage 2 remap, offering a robust balance between performance gains and emissions compliance; however, it is important to note that upgrading from the stock catalytic converter will typically require an ECU remap to ensure the engine runs correctly with the new sensor readings.
All features
| Model Part Number | SSXBM1037 |
|---|---|
| Brand | Milltek |
Extended Product Information
FAQs
Do I need to remap my car after installing this?
Yes, a remap is typically required as the ECU will receive different readings from the Lambda sensors compared to the stock configuration.
Is this road-legal?
If your vehicle was manufactured after March 1st, 2001, the sports cat must be ECE 103R approved to remain road-legal.
How much power will I gain?
Power gains depend on your specific vehicle and tuning stage, but this downpipe is specifically designed to support the requirements of a Stage 2 remap.
What is the warranty coverage?
This product is covered by a 2-year or 80,000Km guarantee, whichever comes first.
Does this replace the entire exhaust system?
No, this is a downpipe and hi-flow sports cat upgrade that replaces the section immediately following the turbo/exhaust manifold.
Troubleshooting
Check Engine Light (CEL) appears after installation
The ECU likely needs a remap to adjust for the high-flow catalyst readings; consult your tuner immediately.
Exhaust rattling or vibration
Check all mounting points and bolts to ensure they are torqued to manufacturer specifications and not touching the vehicle chassis.
Poor fuel economy after installation
Ensure the ECU map is correctly configured for the new hardware; an incorrect map can cause the engine to run too rich or too lean.
Pros and Cons
Pros
- Noticeable increase in horsepower and torque
- Improved throttle response and engine responsiveness
- High-quality construction ensures long-term durability
- Effective bridge to achieving Stage 2 tuning performance
- Backed by a 2-year / 80,000Km guarantee
Cons
- Requires an ECU remap to calibrate for new Lambda sensor readings
- Installation may require professional automotive expertise
- Subject to ECE 103R approval requirements for vehicles post-March 2001
Setup, Compatibility & Care
Installation of the SSXBM1037 requires lifting the vehicle and accessing the underside of the engine bay. Given the sensitivity of the exhaust system and Lambda sensors, professional installation is strongly recommended to ensure proper alignment and seal. After installation, an ECU remap is mandatory to prevent check-engine lights and to ensure the air-fuel ratio remains within safe parameters. For care, periodically inspect the connections and the catalyst substrate for any signs of soot buildup or physical damage. Always verify that your specific vehicle model is compatible with the ECE 103R approval status if your car was manufactured after March 1st, 2001.