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INR Fabrication

F9X "Timepiece" Full Exhaust

F9X "Timepiece" Full Exhaust

$6,550.00 USD
$6,550.00 USD
Sale Sold out
Taxes included.
X-Pipe
Axel Dumps

The Timepiece Exhaust is a work of art, fashioned from polished stainless steel with swirling tubes and an intricate flow path. Developed by INR in the USA specifically for the S63 engine found in the F90 M5, F91 M8, F92 M8, and F93 M8 chassis, this third iteration underwent hands-on testing by Isaiah, the brand’s founder. Unsatisfied with earlier prototypes, he revised and refined the design through real-world evaluations, improving both performance and aesthetics with each iteration. The result is a stunning piece of engineering—equal parts form, function, and sound.

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Engineered for Performance

  • 304 Stainless Construction

    Durable, corrosion-resistant material ensures high strength, longevity, and superior performance in harsh environments.

  • Back-Purdge Tig Welded

    Welds are protected from the inside out with inert gas, creating ultra-clean, durable, corrosion-resistant joints.

  • Precision Fitment

    Designed for a seamless, direct bolt-on install using factory mounting points for hassle-free setup.

  • 3 Inch Mandrel Tubing

    Mandrel-bent 3” tubing ensures unrestricted flow, boosting power and torque while reducing turbulence.

Optional

High-Flow Axle Dumps

Remotely controlled axle dumps bypass restrictive piping for near straight-pipe flow, delivering immediate, noticeable power gains with the press of a button. You’ll also enjoy an amplified turbo whistle, highlighting the performance under the hood.

Future-Proof Performance

Built to accommodate further modifications, providing ample headroom for significant power gains.

Modular V-Band Connections

V-Band flanges allow quick, hassle-free part swaps and upgrades, streamlining maintenance and future modifications.

Optional X-Pipe (comes as standard)

Performance Mid-Section

Full 3-inch mid-section with a built-in X-pipe, balancing exhaust pulses for smoother power and refined tone. Not recommended if our X-Integrated Downpipe is installed or planned.