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CSF Manifold #8400

$5,599.00
Shipping calculated at checkout.

The CSF #8400 Race X is CSF’s most advanced charge-air cooler manifold for Gen 2 B58 engines. Building on the success of the CSF #8200, this race-proven manifold features a 25% larger core, advanced water flow architecture, and expanded functionality for high-performance applications including drag racing, meth/nitrous injection, and competitive tuning setups.

Includes

CSF #8400 Race X Manifold
Upgraded with an oversized intercooler core, front-facing ice box port, and nitrous/meth-ready design — all precision-machined from billet aluminum.

Pre-Installed Fuel Rail
Top-feed port injection capable with pre-installed rail and injector ports.

Thermal Rejection Competition Spacer
Reduces heat transfer from the head to the manifold, improving intake air temps.

Hardware & Installation Kit
All fittings and mounting hardware included for a complete plug-and-play install.

Key Features

  • 25% larger intercooler core than the CSF #8200
  • Optimized water flow system with dual or single-pass routing
  • Ice box–ready front port (ideal for drag setups)
  • Three 1/8 NPT ports on integrated sensor pad
  • Individual 1/8 NPT ports on each cylinder runner (for direct nitrous/meth injection)
  • Dedicated 1/8 NPT breather ports for easy water bleeding
  • CNC billet aluminum construction with raw finish
  • Pressure tested to 60–70 PSI for leak-free performance
  • Plug-and-play design for simplified installation

Compatible Car Models

(For B58C Gen 2 engines — model years may vary by region)

Toyota GR Supra:

  • 2020–2023 GR Supra 3.0L (Base, Premium, A91 Edition, Launch Edition)

BMW Models with B58 Gen 2 Engine:

  • 2022+ M240iX (G42)
  • 2018+ M340i / M340iX (G20 / G21)
  • 2020+ 440i (G22 / G23 / G26)
  • 2018+ 540i / 540iX (G30 / G31)*
  • 2018+ 630iX / 640i / 640iX (G32)
  • 2018+ 740i / 740iX / 740Li / 740LiX (G11 / G12)
  • 2018+ 745e / 745eX / 745Le / 745LeX (G11 / G12)
  • 2018+ 840i / 840iX (G14 / G15 / G16)
  • 2018+ X3 M40iX (G01)*
  • 2018+ X4 M40iX (G02)*
  • 2018+ X5 45i / 45iX / 45eX (G05)
  • 2018+ X6 40i / 40iX (G06)
  • 2018+ X7 40iX (G07)
  • 2018+ Z4 M40i (G29)

Note: Applicable only to vehicles equipped with the B58C (2nd gen) motor.

Pickup available at Shop location

Usually ready in 24 hours

Product information

These commodities, technology, or software were exported from the United States in accordance with the Export Administration Regulations. Diversion contrary to U.S. law is prohibited.



"THE STANDARD"

At TMS, "The Standard" isn’t just a benchmark — it’s our obsession. We engineer and design every product to exceed expectations in quality, performance, and aesthetics. While the aftermarket industry is filled with cheaply made, mass-produced parts that cut corners, we take a different approach. Our commitment to precision engineering ensures flawless fitment, durability, and peak performance, while our design philosophy blends function with a sleek, OEM+ aesthetic. Every component we create is built for enthusiasts who demand the best — no compromises, no second-guessing, just pure, high-performance innovation. Welcome to "The Standard" — where excellence is the only option.

PLUG & PLAY

All of our products are engineered to be seamlessly installed without any extra wire cutting or soldering.

PERFORMANCE

TMS products are your gateway to higher performance. Whether it's our flex fuel, reflex harness, or all in one kit; they were engineered for maximum performance.

ENGINEERING

All TMS products are designed from an engineer's perspective: What are the standards? What materials can be used to achieve maximum performance? We research, design, & test with engineering in mind so that we know the products are the best.

DISCLAIMER

TMS ReFlex™ Harness Kits are designed for competition closed course use only and require tuning from companies such as EcuTek™, BootMod3™, and MHD™.  These kits may be used in conjunction with flex fuel; please note that exceeding the manufacturer’s recommended ratio of ethanol content without proper tuning may cause severe damage to the engine. Modifying a car for racing purposes can have legal implications and may void warranties. Additionally, it is essential to adhere to local regulations and safety guidelines when making modifications to your vehicle. Tensility Motor Sports does not accept liability for any mechanical, electrical, or other failure as a result of installation and use, or of improper tuning.

NO MODIFICATIONS

Under no circumstances should Tensility Motor Sports products be altered, modified, disassembled, or tampered with in any way. Any modifications to the products not expressly approved by Tensility Motor Sports will void the product warranty and may cause damage to the products or your vehicle, for which Tensility Motor Sports will not be responsible.