CTS Turbo BMW S63 F10 M5/M5C & F06/F12/F13 M6/M6C Downpipes

Free up the 4.4L twin-turbo S63 in your BMW M5 or M6 with CTS Turbo downpipes built to flow where the factory catalytic converters strangle. CAD-developed to drop straight into the OE location, each pipe is cast from T304 stainless and hand TIG-welded with a back-purge for long-haul durability.

Beyond the power, the sound transforms: a deeper, louder growl with a pronounced crackle on downshift and a confident punch as you row through all 8 gears. Pair them with an aftermarket exhaust and the volume climbs even higher.

What you get

• Developed and tested on a real car in the real world
• Cast T304 stainless steel, TIG-welded and back-purged
• Replaces the restrictive factory catalytic converters
• Strong power gain with no compromise in reliability
• Sporty exhaust note that stays subtle when cruising
• No drone with the factory exhaust

Fitment

• 2012-2016 F10 BMW M5
• 2012-2016 F10 BMW M5 Competition
• 2012-2016 F06/12/13 BMW M6
• 2012-2016 F06/12/13 BMW M6 Competition

Proper stage 2 tuning software must be used to clear the CEL that will otherwise appear.

Emissions disclaimer: This product is not legal for sale or use on pollution-controlled vehicles operated on public roads and is intended for off-road, race, or closed-course competition use only. You are responsible for compliance with all applicable emissions laws; use on public roads may violate the Federal Clean Air Act (42 U.S.C. § 7522) and similar state laws. Please check your local laws before purchase and installation.

Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email support@korespeed.com.