Ultimate PSI

13/07/2026

Another dream build brought to life. 🔥

This BMW F20 M135i N55 came to us with one goal: build it right.

Every part on this build was supplied through Ultimate PSI. The customer chose our complete Ultimate PSI bolt-on package, including our Crank Bolt Capture for added protection and ACL Rod Bearings for maximum reliability. Any additional components outside our product line were sourced by us from the USA, giving the customer everything needed to complete his dream build.

To complete the package, we tuned the engine with bootmod3 , optimized the transmission with xAutomotive , and verified the results on the dyno to ensure everything performed exactly as expected.

The result? A compact xDrive monster that delivers incredible power, lightning-fast shifts, and unbelievable traction. This little beast is a perfect example of what the N55 platform is capable of when built and calibrated the right way. 💙

06/07/2026

06/07/2026

19/06/2026

ULTIMATE PSI S55/N55 Crank bolt capture

Protect your N55 or S55 engine with the Ultimate PSI Billet Aluminum Crank Bolt Capture Kit.

CNC-machined from high-quality billet aluminum and finished with a durable anodized coating, this plug-and-play upgrade helps prevent crank bolt loosening caused by vibration, providing an extra layer of protection against potential crank hub failure.

✅ Fits BMW N55 & S55 engines
✅ CNC-machined billet aluminum construction
✅ Durable anodized finish
✅ Helps prevent crank bolt loosening
✅ Added protection against crank hub failure
✅ Complete plug-and-play kit
✅ Includes all hardware required for installation
✅ Ideal for stock and high-performance builds

A simple upgrade that adds peace of mind and helps protect your engine investment.

19/06/2026

ULTIMATE PSI B58 COLD AIR INTAKE For BMW f series M140i, 240i, 440i 2015-2018.

Unleash the full potential of your B58-powered BMW with the Ultimate PSI High Flow Cold Air Intake.

Designed to maximize airflow and turbo efficiency, this intake delivers improved throttle response, faster turbo spool, and an aggressive induction sound that transforms the driving experience.

✅ Increased airflow over OEM
✅ Improved throttle response
✅ Enhanced turbo and intake sound
✅ Aluminum construction with powder-coated heat shield
✅ Closed-box or open-box configuration
✅ Reduced heat soak
✅ Plug and Play

Performance, sound, and style—all in one package.

19/06/2026

Ultimate PSI Upgraded heat exchanger For BMW F80/F82/F87

Keep your S55 running cooler and performing at its best with the Ultimate PSI Performance Heat Exchanger for BMW M2 Competition, M3, and M4.

Featuring a larger, high-efficiency core and increased coolant capacity, it helps reduce intake air temperatures (IATs), minimize heat soak, and maintain consistent power during hard driving, track sessions, and hot weather.

✅ Larger core than OEM
✅ Increased cooling efficiency
✅ Lower IATs and reduced heat soak
✅ More consistent horsepower and torque
✅ Plug and Play

Built for enthusiasts who demand reliable performance on the street, drag strip, and race track.

24/04/2026

BMW 240i B58 equipped with our performance package 🔥

Upgraded with our high-flow cold air intake for maximum airflow and aggressive engine sound, aluminum charge pipe for improved reliability, and a catless downpipe for optimal exhaust flow.

Finished with tune to unlock the full potential of the B58 💪

20/04/2026

BMW 440i B58 running our Ultimate PSI Stage 2 package 🔥

This setup includes:
• High-flow downpipe for maximum exhaust flow
• Upgraded charge pipe for reliability and performance
• Stage 2 tune

The result?
Over +100HP gain from stock 🚀

A completely transformed driving experience with aggressive power delivery and strong top-end pull 💨