Description
Enhanced Performance Downpipe. The Milltek Catted Downpipe for OE Exhaust Systems is designed to improve both efficiency and sound by increasing exhaust gas flow with a larger bore than standard components. It is intended for enthusiasts seeking a significant performance upgrade while retaining compatibility with the original cat-back exhaust system. The product requires a Stage 2 ECU remap to maximize benefits.
Construction and Appearance. This downpipe features a large 70 mm diameter pipe engineered to improve exhaust flow. Manufactured in the UK, the unit includes a high-flow sports catalyst but is a race product and not E-marked.
Installation. Installation replaces the original downpipe while retaining the OE cat-back exhaust system. No drilling is required; professional ECU remapping is necessary to fully leverage the performance gains.
Application. Specifically designed to fit the 2015 to 2018 S550 Mustang EcoBoost Fastback and 2024+ S650 Mustang EcoBoost Fastback models with the factory cat-back exhaust system. It is not compatible with aftermarket cat-back systems without modifications or different downpipe options.
Milltek SSXFD170
CA Residents: WARNING: Cancer and Reproductive Harm
- Large Bore Downpipe With Hi-Flow Sports Catalyst For OE Cat-Back
- Significantly Larger Diameter Than Standard OEM Parts
- Increases Exhaust Gas Flow Efficiency
- Provides Noticeable Performance And Sound Improvement
- Requires Stage 2 ECU Remap
- Designed For Fitment With OE Cat-Back System Only
- Pipe Diameter 70.00 Mm
- Race Product
- Not EMarked
- Fits 2015-2018 S550 Mustang EcoBoost and 2024+ S650 Mustang EcoBoost Fastback Models
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