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Exhaust› Exhaust Pipes, Systems and Components
CTS Turbo
3-Inch Performance Downpipe w/ High-Flow Cat
SKU: CTS-EXH-DP-0033-CAT
Moderate — 2–4 hours
Overview
Show original supplier description
Vehicle Symptoms
- Sluggish acceleration after tune
- Check engine light on (catalyst efficiency)
- Exhaust smell stronger than normal
- Turbo lag or delayed boost response
- Failed emissions test due to cat efficiency
Diagnostic Codes
- P0420 – Cat Sys Efficiency Below Threshold (B1)
Relevant Conversations
- P0420 fix for EA211 engine
- CTS Turbo 3-inch downpipe review
- High-flow cat downpipe vs stock
- Downpipe install time EA211 Golf GTI
- Best downpipe for APR stage 2 EA211
- Will downpipe cause check engine light?
- CTS Turbo vs AWE downpipe comparison
- EA211 downpipe without tune safe?
- Downpipe installation tips and tricks
- Emissions test with high-flow cat downpipe
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | CTS Turbo |
| Part Number | CTS-EXH-DP-0033-CAT |
| Category | Exhaust |
Videos
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