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20/02/2026

BMW M57N2 306D5 OEM+

Dual CP3
R2 Camshafts
Port & Polished Cylinder Head
Cooling Mods
D5 Block with 4mm Ductile Liners
60% Stiffer Valve Springs
100%+ GKR Injectors
K26 Hybrid GP500
ARP Mains
ARP Rod Bolts

ZF 8HP70 ⚙️

11/12/2025

2010 BMW E92 335d

⚙️ ZF8 Conversion CANformance Engineering
🐌 Pulsar Turbo
📊 GKR Performance
💡 Updated Lights
⏰ Digital Dials

Tuning & More Hardware in store for this unique build next year, watch this space…

01/12/2023

BMW M57 Head Studs - Pre Release Orders

RMJ Developments are proud to bring a much needed solution to the market, A Superior Head Stud kit that is suitable for BMW 3.0L M57N2 / TÜ2 Engines. This is a complete direct replacement kit for the OEM Bolts

Kit Contents:

- 14 x Studs
- 14 x 12 Point Nuts
- 14 x Washers
- Installation Grease (Molybdenum Disulfide EP)

The material choice is H-13 Tool Steel. Which have rolled threads, Cosworth inspired tips, are Heat Treated and finally Micro polished.Yeild tested to 280,000psi+

The 12 Point Nuts and Oversized Washers are CNC machined from 4140 chrome moly bar, then hardened to HRC 45 and then plated for a friction surface and appearance finish.

£495.99 + Postage

There will be limited quantities available so please send the page a message for Reservations & Orders now

14/10/2023

BMW 335d/535d/635d Billet CNC CCV Delete Plate

Functional with M57N/M57N2 M47N/M47N2 Engines.

CNC Aluminium Plate, Plated & with M18x1.5 threaded hole for an array of fittings, AN12 screw in adapter included. AN fitting take off for plumbing suitable pipework to catch-can or replacement/upgraded CCV system. Fitment screws included

£89.99 Delivered 🇬🇧

04/10/2023

BMW 3.5” 335d | 535d | 635d Downpipes

🔧 Compatibility

BMW 335d E90/E91/E92/E93 (2006-2011)
BMW 535d LCI E60/E61 (2007-2009)
BMW 635d E63/E64 (2006-2010)

£364.99 Delivered 🇬🇧

03/10/2023

https://www.instagram.com/rmjdevelopments/?hl=en

Follow, Share & Like for regular online updates 😎

19/08/2023

2004 BMW E46 330cd - ⚙️ 6 Speed

Supplied & Fitted

Complete E90 Hybrid Turbo Conversion
3” Stainless Intake | Velocity Stack
3” Stainless Downpipe
2.5” Intercooler Harpipes
Upgraded Intercooler Core
535d (219) Injectors
CCV Delete Plate & Catchcan
EGR Delete Pipe
GKR Performance Bespoke ECU Calibration

Great results reported today, the owner visited a reputable independent dyno for measurement.

392.4BHP | 860NM

🎥 Video in comments

05/04/2023

A project in progress that’s been with us recently

2004 BMW E46 330cd - ⚙️ 6 Speed

Supplied & Fitted

Complete E90 Hybrid Turbo Conversion
3” Stainless Intake | Velocity Stack
3” Stainless Downpipe
2.5” Intercooler Harpipes
Upgraded Intercooler Core
535d (219) Injectors
CCV Delete Plate & Catchcan
EGR Delete Pipe
Bespoke ECU Calibration

This build is coming along strong with current data logs, aiming for software completion over the next few days. We will then get an independent measurement for the owner. Stay Tuned… 😎

09/03/2023

Performance Package - BMW E90 335d -

Supplied & Fitted

K26 GTX3576R Hybrid turbo
Upgraded Hybrid small turbo
Dual CP3 HPFP Kit
3.5” Intake / Filter
M50d RPS
DRV30
Bespoke ECU Calibration

Please feel free to contact the page should you wish for a similar package or details on services currently offered.

27/02/2023

Another one of our Dual CP3 HPFP Kits being installed on a E90 335d ✅

Once completed, the car will next feature our Hybrid Turbos and suitable Software calibration and Tuning.

Feel free to get in touch should you have any questions or queries regarding our products & services 😎

Address

Reading

Website

http://www.rmjdevelopments.co.uk/

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