Sports Series High Flow Catted Downpipe for 2024+ X5M/X6M LCI S68 Engine

Upgrade your ride with the ultimate high-flow catted downpipe from Evolution Racewerks. Designed specifically for the twin-turbo S68 engine (Fits 2024+ X5M/X6M LCI (F95/F96). This Sports Series downpipe replaces restrictive factory primary catalytic converters with premium 200-cell metallic high-flow units while deleting the secondary cats for maximum exhaust flow, faster turbo spool, and significant power gains.

At Kies Motorsports, we're BMW performance specialists serving enthusiasts nationwide from our New Jersey base. 

Key Features & Benefits

• High-Flow 200-Cell Metallic Catalytic Converter – Larger cells for superior exhaust flow compared to stock ceramic honeycomb design, reducing backpressure and turbulence.
• Replaces Primary Cats + Deletes Secondaries – Features 4 catalytic converters total; this setup optimizes flow while maintaining a high-flow catted configuration.
• Enhanced Performance – Higher max horsepower curve, quicker initial torque delivery, faster turbo spool-up, and sharper throttle response on your twin-turbo S68 engine.
• Premium Construction – 100% 304 stainless steel, mandrel-bent 3" piping for smooth transitions, precision CNC-machined V-band flanges, TIG-welded in the USA.
• Direct Bolt-On Fitment – Retains factory slip-on connection; compatible with stock or aftermarket exhaust systems – no modifications required.
• Durable & Track-Tested – Metallic cats handle higher temps, last longer, and weigh less than ceramic; includes laser-cut brackets and O2 sensor bungs at factory locations.
• Finish Options – Default brushed stainless; available in mirror polish or high-temp black thermal ceramic coating (up to 2000°F resistance, reduces underhood heat, adds corrosion protection).
• Made in the USA – Hand-fabricated in-house by Evolution Racewerks for unmatched quality and fit.
• Limited Lifetime Warranty – Backed by Evolution Racewerks for peace of mind.

Why Choose This Downpipe for Your Ride?

Factory exhaust restrictions – especially the dense catalytic converters – limit the S68's twin-turbo potential. This high-flow catted downpipe unleashes more power by minimizing turbulence and maximizing exhaust velocity. Expect noticeable improvements in turbo response, mid-range torque, and overall drivability.

Specifications

• Compatibility: Fits 2024+ X5M/X6M LCI (F95/F96). with S68 twin-turbo engine
• Pipe Diameter: 3" mandrel-bent
• Material: T304 stainless steel throughout
• Catalytic Converter: 200-cell high-flow metallic core
• Installation: 100% bolt-on, includes all necessary hardware
• O2 Sensors: Factory locations retained

Important Emissions & Legal Notice

This product is intended for off-road, competition, or track use only. It is not legal for installation or use on pollution-controlled vehicles on public roads/highways in certain states (including California). Not compliant with CARB regulations. Purchaser assumes all liability and must sign a vehicle compliance waiver where required. For sale in 49 states (excluding CA) and internationally without restriction.

What's Included

• Evolution Racewerks Sports Series High Flow Catted Downpipe (primary replacement + secondary delete)
• All installation hardware and gaskets

Shop with confidence at Kies Motorsports – your source for BMW M5 G90 performance parts, tuning, and exhaust upgrades. Add this Evolution Racewerks downpipe and experience the S68 engine like never before!

Product is made to order, please allow 4-8 weeks for delivery.