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Fuel-It S55 M2/M3/M4 STAGE 4 FUEL SYSTEM UPGRADE FOR 600+ WHP
Please Note: Fuel-It products may have a wait time due to availability.
Are you running more E85 or making more power than your stock fuel system can support?
We have developed a port injection kit and LPFP upgrade (Low Pressure Fuel Pump) for your S55 that will provide you with the additional fueling capacity that you need to be able to run up to 100% E85 on stock or upgraded turbos.
What is port injection?
Port injection is a kit that is installed between your intake manifold and the cylinder head that runs off the low pressure fuel supply to provide you with more fueling than your stock system is capable of. It's a relatively easy system to install and does not require any permanent modification to your car.
What is the Stage 4 LPFP upgrade?
This upgrade is an E85 compatible dual pump system that doubles the factory capacity and is required when looking to make more than 600whp on E85.
Stage 4 kit includes:
- Port Injection kit
- Fuel-It! custom black anodized spacer for the intake manifold
- Fuel-It! custom black anodized fuel rail
- Black anodized aluminum and stainless steel hardware
- Six of the following:
- Flow matched Bosch injectors (750cc)
- BMW OEM gaskets
- Stage 4 LPFP Upgrade
- OEM Flex Fuel pump
- Secondary pump (Walbro 450)
- Dual -6an E85 compatible feed lines
- Dual input E85 compatible fuel filter
- Return kit
- Fuel Pressure Regulator (1:1 boost referenced)
- Return line
- Silicone boost reference line and fittings
- 950cc injector upgrade
- Ethanol Sensor and Bluetooth Analyzer upgrade
Compatible with the following:
- 3' F80 M3 (04/2012 — 06/2015)
- 3' F80 M3 LCI (01/2015 — current)
- 4' F82 M4 (02/2013 — current)
- 4' F82 M4 LCI ? (05/2016 — current)
- 4' F83 M4 (06/2013 — current)
- 4' F83 M4 LCI (05/2016 — current)
- 2' F87 M2C (2019-current)
*Port Injection Controller install guides can be found here...
*These kits are available for off-road use only
*All port injection kits are built to order so please allow 5-7 business days for shipping.
*Ethanol Sensors don't actually read the ethanol content, the readings are based on the absence of gasoline, so if your fuel is contaminated, your ethanol readings may be artificially elevated.
DISCLAIMER: Cancelled orders on Fuel-It products have a 20% restocking fee whether the product has been shipped or not. This is a policy direct from Fuel-It.
We are typically very quick and have a 24-48 hour turnaround time. Transit time depends on your order and which warehouse we are shipping from, but typical transit times are between 5-7 business days from one side of the US to the other.
Majority of the items we offer do ship free to the lower contiguous 48 states. States that require plane or boat to reach (such as Hawaii, Alaska, Puerto Rico, etc) do NOT qualify for free shipping. Please contact us to inquire about international shipping costs. During checkout, you will know which items ship free and which have shipping costs associated with them. In general, larger/heavier items will have additional shipping costs (body kits, wheels/rims, etc)
Even though everything can be shipped internationally, sometimes the cost is simply just too high and doesn't make sense to do so. We're here to make sure you have a great shopping experience, so if you have a product(s) you want to inquire about, please contact us at email@example.com
Yes, we do price match reputable competitors in the marketplace. If you find a product cheaper elsewhere, please email us the (1) link of the product from our website and (2) the link to the competitor site. We will make an assessment on our end if we are able to price match or not and respond to you via email.
Typically you have 14 days to return a product you purchase when you change your mind. Damaged and improperly installed products are NOT eligible for returns. Shipping fees may be assessed and not refunded based on criteria as well as restocking fees. Please see our FAQ page for more details.
Unfortunate Kies Motorsports no longer does customer installs (with the exception of crank hubs - we still do thos inhouse). Our HQ is solely reserved for filming, office space, and shipping/receiving.