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Air and Fuel› Fuel Injection Systems and Components - Electronic

Nostrum

Stage 2 DI Injectors for BMW S55/N55 3.0L

$1,799.00 $1,750.00 Save $49.00

SKU: H703-1257

In Stock
In Stock
Ships by Jul 31
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30 Days Return
INSTALL DIFFICULTY
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Moderate — 2–4 hours

Description

The Nostrum Stage 2 DI Injectors are a high-performance fuel upgrade for BMW 3.0L S55 and N55 engines. These injectors are engineered to flow 55% more fuel than stock S55 units, supporting high-horsepower builds without the need for secondary port or methanol injection systems.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandNostrum
Part NumberH703-1257
CategoryAir and Fuel

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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