INDUCTION KIT FOR BMW B46/B48 (120I, 125I, 220I, 230I, 320I, 330I, 420I, 430I) SKU: FMINDK55
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Spec |
Info |
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Name / SKU |
Forge Motorsport Induction Kit FMINDK55 |
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Fitment / Compatibility |
BMW models equipped with B46 / B48 engines (various 1-series, 2-series, 3-series & 4-series) |
|
Gains (claimed) |
Up to +8 bhp, +7 Nm torque across rev range |
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Components Included |
Induction kit + inlet hose + full instructions |
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Materials / Construction |
Carbon fibre (prepreg 2×2 twill) + multi-ply silicone hose |
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Warranty |
Lifetime warranty on hardware (filter typically excluded) |
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OEM Replacements |
Replaces OEM part numbers 13718601678, 13718605164, 13718601682 |
⚠️ Notes, Caveats & Fitment Warnings
- This kit does not fit B48 engines in 306 bhp form (i.e. more highly tuned versions).
- It only works with B46 / B48 versions that use the MAF (mass air flow) sensor design, not temperature-sensor variants.
- Some F-series BMWs (UK / EU spec) have a “blank” in the front duct that prevents ambient airflow to the inlet. Forge designed a carbon duct (FMINLD2) to replace that blank to allow more air to flow in.
- The original OE intake hose has sound resonators and accordion ribs that can cause turbulence. This kit’s hose is smooth and multi-ply to reduce turbulence.
- The kit increases the inlet diameter from 85 mm (stock) to 90 mm at the airbox end.
- Fitment time is about 1 hour with no special tools needed.
- The kit helps with reducing heat soak thanks to carbon’s low thermal conductivity.
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