Active Autowerke Sport Cat Downpipes for BMW S63 and N63 V8 - E70 E71 F85 F86 - X5 50i X6 50i X5 M X6 M
Unlock power, response and sound with the Active Autowerke BMW S63 N63 Sport Cat Downpipes. Built for the twin-turbo V8 BMW X5 50i, X6 50i, X5 M and X6 M platforms, these high flow GESI-equipped downpipes slash back pressure, speed up turbo spool and deliver a sharper, more engaging drive. Hand made from 304 stainless steel with full 3 inch tubing and precise cast stainless V-band inlets, they are the proven upgrade for serious performance and reliability.
Featuring ultra high flow 4.5 inch GESI G-Sport UHO catalytic converters, these sport cats are EPA registered, fully OBD2 compliant and designed not to trigger a check engine light. Expect faster turbo response, stronger mid-range torque and a deeper, more purposeful exhaust note without the drone. We have fitted and used these downpipes at Nforcd and customer feedback has been excellent for quality, fitment and results.
Why choose Active Autowerke Sport Cat Downpipes
- Reduce exhaust back pressure for quicker spool and improved throttle response
- Full 3 inch mandrel-bent piping for maximum flow and power potential
- Ultra high flow GESI UHO catalytic converters - no CEL in our experience
- Durable TIG-welded 304 stainless steel construction for long-term reliability
- Direct bolt-on fitment with stainless V-band connections - no cutting or welding
- Designed for BMW S63 and N63 twin-turbo V8 applications
Key features and specs
- No CEL when using this downpipe
- GESI G-Sport UHO high flow catalytic converters - EPA registered and fully OBD2 compliant
- Casted upper stainless steel V-band for precise OEM-like fitment
- Full 3 inch diameter piping for maximum power output and flow
- Quicker turbo spool and stronger mid-range performance
- Rated for 500 to 850 hp applications
- Withstands up to 1500 F and reaches operational efficiency within 9 seconds of start-up
- TIG-welded 304 stainless steel with 304 stainless substrate furnace brazed to the mantle
- Ultra high flow 400 CPSI catalyst - reduced back pressure, high durability
- Bolts on to factory locations - no cutting or welding required
- Made in Miami, Florida
- Catalytic converter warranty - 5 Year or 50,000 Miles
Fitment - BMW S63 and N63 twin-turbo V8
- BMW X5 E70 LCI 50i - N63 V8 - 2010 to 2012
- BMW X6 E71 LCI 50i - N63 V8 - 2010 to 2012
- BMW X6 E71 LCI M - S63 V8 - 2010 to 2012
- BMW X5 F15 50i - N63 V8 - 2014 onwards
- BMW X6 F16 50i - N63 V8 - 2014 onwards
- BMW X5 M F85 - S63 V8 - 2014 onwards
- BMW X6 M F86 - S63 V8 - 2014 onwards
What you will notice
- Faster turbo response and stronger pull through the revs
- Deeper, sportier exhaust tone while retaining refinement
- Smoother power delivery and reduced heat build-up thanks to lower back pressure
Installation and fitting
Direct bolt-on installation using factory locations and V-band connections. No cutting or welding required. For the best fitment and outcome, we recommend professional installation.
Nforcd offers expert fitting in Warwickshire. Request a quote: Sales@nforcd.com
Emissions and compliance
GESI UHO catalytic converters are EPA registered and fully OBD2 compliant for 49 states and designed to minimise the chance of a check engine light. Not legal for use on vehicles registered in California. Federal law prohibits tampering with emissions control devices. These sport cats are intended to maintain emissions within EPA requirements but are not CARB approved.
Part number
11-041
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