RMJ Developments

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

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 🇬🇧

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 🇬🇧

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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

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… 😎

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.

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 😎

G35-K26 - M57 Hybrid Turbos

Now here available in the UK! 🇬🇧

For those who really want genuine power that others fail to supply, please contact the page for further details 👍

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Instagram -

Post your acc below so I can give you a follow back! 😎

RMJ Developments is very proud to announce a new service

With thanks to CANformance Engineering we are now offering ZF8 & DCT conversions here in the UK 🇬🇧 for a variety of platforms

CANTCU is a CAN-based gateway controller that enables support and communication between BMW F-series transmissions and basically any modern car ECU/electronics.

Please contact the page if you have any questions or queries

2008 BMW 535d LCI

First in 🇬🇧 with ZF8HP70 ⚙️

Stay tuned for Dyno measurements and of course Dragy data ✅

This conversion is now a service RMJ Developments can offer for a variety of BMW Platforms - please pm the page for further details

📣Update - Thanks to the great responses, we have now got a suitable vehicle made available to us! Thank you again to everyone 😎📣

⚙️Research & Development Post ⚙️

We’re currently looking for a 35d E9* car with Standard exhaust system (downpipe doesn’t matter) for studies and development of products.

We would need the car for approximately 1 working day on site in St Albans (AL1)

If anyone is comfortable to support us with this, I offer some heavily discounted hardware and some free goodies!

Please message 🆎/email 📧/text📱/call 📞

07780444587

[email protected]

BMW 335d | 535d | 635d | X35d | X535d | X635d

3.5” Downpipes - Utilising original fittings for OEM fitment. (RHD & LHD)

£345 Delivered 🇬🇧

Coming soon…

BMW M57 Performance Valvesprings

Performance Valve Spring Kit for BMW 6 Cylinder Diesel Engines

35% more valve seat pressure than stock BMW springs. Fitting stiffer performance valvesprings prevents valve float on applications using higher than stock boost pressures.

Available now for £265 with next day delivery 🇬🇧

BMW 335d | 535d | 635d LCI Dual CP3 Pump Kit

Supplied & Fitted

Billet CP3 Bracket Mount
Billet Pulleys
Tensioner
Poly V Drive Belt
High Pressure Fuel Hardline
Bosch CNC Fuel Fitting
Coolant hose extension
Fixtures and Fittings (Brass fuel splits) (jubilee clips)
Dual Pump Controller (plug & play harness)

Available now for next day delivery 🇬🇧

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

Functional with M57N/M57N2 M47N/M47N2 Engines.

CNC Aluminium Plate with 25mm take off for plumbing suitable pipework to catch-can or replacement/upgraded CCV system. Fitment screws included

£55 Delivered 🇬🇧

PROMO OFFER - £1200 -

BMW 335d/535d/635d LCI Dual CP3 Kits

The next 10 kits to be purchased are on offer and available for immediate dispatch.

Get in touch should you have any questions

BMW 335d | 535d LCI Dual CP3 Pump Kit

Billet CP3 Bracket Mount
Billet Pulleys
Tensioner
Poly V Drive Belt
High Pressure Fuel Hardline
Bosch CNC Fuel Fitting
Coolant hose extension
Fixtures and Fittings (Brass fuel splits) (jubilee clips)
Dual Pump Controller (plug & play harness)

£1450

Available now for next day delivery 🇬🇧

BMW 335d/535d K26 Turbo GTX3576R Upgrades now available.

Please get in touch for further details

Dual CP3 HPFP - Kits soon to be available

335d / 535d LCI Fitment