What sets Nostrum apart:

• 31% larger than stock S63TU EU5 injector <20.2 g/sec vs 15.4 g/sec>
• 59% larger than stock S63TU2 EU6 injector <20.2 g/sec vs 12.7 g/sec>
• Direct Fit, no harness or spacers required
• OEM decoupling rings pre-installed
• Ethanol Compatible
• OEM equivalent spray pattern
• Every injector is tested statically and dynamically to ensure best quality product and set batching
• Includes comprehensive installation guide
• Bootmod3 Dropdown – expertly developed and validated by Nostrum

You asked and Nostrum listened – upgraded injectors for the S63 have arrived! While most people use M5 injectors in other platforms as an upgrade, the M5 owners were left with very little option to get more fuel into their engines without having to rely on sketchy port or meth injection systems. Flowing 31% more than the stock M5 EU5 injectors and a 250bar operating pressure capability, the Nostrum S63 injectors are the answer. We estimate that these injectors will flow enough to support up to 1300 wheel horsepower – without supplemental fuelling!

Inside the box, you will find everything you need to get your new injectors installed quickly, including pre-installed decoupling rings and detailed installation instructions for a high quality install. When you are ready to tune, we have injector tuning data available for your dealer or tuner. Being that everything is installed like a factory part, there’s no need to worry about secondary injection controllers, filling meth tanks, clogged meth injectors, or any of the other complex solutions people use to squeeze more power out of these vehicles. Additionally, these injectors are operating with all the OEM ECU’s engine management system diagnostics and safety functions – resulting in a much happier and responsive system!

Every Nostrum manufactured part is backed by a limited lifetime warranty. Our products are comprehensive solutions that come complete with everything you need inside the box, including detailed installation instructions. Tuning guides are also available for your dealer or tuner. We have customer service and calibration engineers on staff to provide you with any support that you may need, from installation to tuning.

Verified vehicle application list:

2012-2017 BMW M5
2012-2018 BMW M6
2015-2019 BMW X5 M
2015-2019 BMW X6 M

Why is spray pattern important?

While increasing flow rate is critical to making more horsepower, there are other factors to consider when choosing fuel system upgrades. A bigger injector isn’t always a better injector! It can flow a large volume of fuel at WOT, but if the spray pattern is poor, you can expect poor idle quality, poor drivability, increased knock propensity, soot, NVH (noise vibration harshness,) and tuning difficulty. Additionally, the wrong spray pattern can result in liquid fuel impinging in the cylinder walls, causing oil dilution, which increases mechanical wear to internal engine components.

Nostrum has invested significant time and resources into acquiring the equipment and machinery necessary to deliver an OEM level of quality on our injectors. Our spray patternation and arc flash machines (images below) give us an unparalleled look at how an OEM injector is designed and how it operates.  Our engineers design and develop injectors to optimally interact with engine air flow inside the combustion chamber to improve fuel evaporation and create a homogenous air-fuel mixture that results in a higher combustion quality. For you, this means that you can expect our injectors to perform at their absolute best regardless of what you are asking from them, from daily driver duty to setting new ¼ mile records.

What’s in the box:

• Tested and flow matched set of eight injectors
• Installation and QuickStart guides included
• Data Card with serial numbers included
• OEM decoupling rings pre-installed