Evolve Catless Turbo Downpipes Decat for BMW M5 F90 and BMW M8 F92 F93 - S63 3 inch T304 Stainless Primary Cat Delete - Off Road and Track Use Only
Not road legal. For off-road and track use only.
Maximise power and response from your S63 twin-turbo V8 with Evolve catless turbo downpipes for the BMW F90 M5 and BMW F92 F93 M8. These high-flow decat downpipes replace the restrictive primary catalytic converters with a straight-through 3 inch T304 stainless steel design that steps down to 2.5 inch to join the front pipes, freeing up exhaust flow for faster turbo spool, crisper throttle response and a deeper, more aggressive M soundtrack. Real-world gains of up to 35 bhp and 51 lb.ft torque have been achieved, even on cars retaining the stock exhaust, with no drone reported.
Nforcd customers choose these Evolve decat downpipes for their precision fit, robust construction and repeatable performance. We run them on our own cars and the results speak for themselves: sharper boost response, stronger mid-range and that authentic M car tone enthusiasts want from a primary cat delete.
Key features and benefits
- Catless primary turbo downpipes for BMW F90 M5 and BMW F92 F93 M8 S63
- Decat primary cat delete for maximum exhaust flow and performance
- T304 stainless steel for strength, durability and corrosion resistance
- 3 inch primary diameter stepping down to 2.5 inch to mate to the front pipes
- Gains up to 35 bhp and 51 lb.ft torque with quicker turbo spool and improved throttle response
- Lower EGTs and a deeper, more aggressive exhaust note without drone on stock systems
- Excellent build quality with clean welds and precise fitment
- Fits both RHD and LHD vehicles
- ECU remap or a Delete-R Module required to prevent a Check Engine Light CEL
Fitment and compatibility
- Direct fit for pre-LCI cars with sleeved exhaust connections
- Pre-LCI and LCI cars with bolted flange downpipes require new brackets and a mid-pipe change
- If you are unsure of your connection type, email your VIN to Sales@nforcd.com for confirmation
Installation and support
Professional fitting is recommended. Nforcd offers expert installation in Warwickshire. To request a fitting quote, contact Sales@nforcd.com.
Why buy from Nforcd
- Tried and tested by our team with excellent customer feedback
- Proven, repeatable gains and sharper turbo response on S63 BMW M cars
- Trusted UK supplier for BMW M exhaust upgrades and tuning parts
Important notes
- Not road legal. For off-road and track use only
- An ECU remap or a Delete-R Module is required to avoid a CEL
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