P1 BMW X5M F85, X6M F86 Down Pipes

P1 Race Downpipes for BMW F85 X5 M & F86 X6 M (2014–2019)

Unlock the full potential of your BMW F85 X5 M or F86 X6 M with the P1 Race Downpipe Set, engineered specifically for the S63 4.4L Twin-Turbo V8. By replacing the restrictive factory catalytic converters, these high-flow race downpipes dramatically improve exhaust flow, reduce backpressure, and deliver significant gains in power, throttle response, and turbo efficiency.

Designed using advanced CAD modeling for an OEM-quality fit, each downpipe is precision-manufactured from premium T304 stainless steel and hand TIG-welded with back-purged welds for exceptional strength, durability, and corrosion resistance.

Performance & Sound

The P1 Race Downpipes allow the S63 engine to breathe freely, producing quicker turbo spool, improved horsepower, and a more responsive driving experience.

Paired with the factory exhaust, expect:

• A deeper, more aggressive exhaust note

• Sharper throttle response

• Enhanced turbo sound

• More pronounced crackles and burbles during deceleration

• Crisp, aggressive gear-change sounds under acceleration

When combined with an aftermarket cat-back exhaust, the exhaust note becomes even more aggressive, delivering an unmistakable motorsport-inspired soundtrack.

Premium Construction

• Precision CNC and CAD engineered for an OEM-style fit

• High-quality T304 stainless steel construction

• Hand TIG-welded with back-purged welds

• Mandrel-bent 3-inch tubing for maximum exhaust flow

• Slip-fit design for straightforward installation

• Designed to reduce exhaust restriction and maximize performance

Features

• 3-inch high-flow race downpipes

• Significant reduction in exhaust backpressure

• Increased horsepower and torque potential

• Faster turbo spool and improved engine response

• Lightweight, durable stainless-steel construction

• Compatible with both left-hand-drive (LHD) and right-hand-drive (RHD) vehicles

• Designed for vehicles equipped with the factory slip-fit exhaust system

• Not compatible with OPF/GPF-equipped ROW vehicles

Vehicle Fitment

• 2014–2019 BMW F85 X5 M (S63 4.4L Twin-Turbo V8, slip-fit exhaust)

• 2014–2019 BMW F86 X6 M (S63 4.4L Twin-Turbo V8, slip-fit exhaust)

Important Information

The installation of catless race downpipes will trigger a Check Engine Light (CEL) on most vehicles. A compatible Stage 2 ECU calibration is required to eliminate catalyst efficiency fault codes and optimize engine performance.

For off-road, racing, and competition use only. Please verify your local emissions regulations before purchasing or installing this product.