- Manufactured from aerospace-grade 6082 aluminium
- Does not trigger the engine warning light (EML)
- Compatible with the GME engine
FMSP3 is a Forge Motorsport blow-off valve adaptor for the Alfa Romeo Giulia/Stelvio and Jeep Wrangler 2.0T. The spacer functions as a pressure-release system developed by Forge Motorsport’s CAD team. It is based on a proven and tested design.
It is used together with the original diverter valve, releasing excess charge air into the atmosphere instead of returning it to the engine’s intake hoses. This may help extend the turbocharger’s service life.
The product was developed specifically so that it does not trigger engine warning lights, and it works on both standard and modified vehicles. FMSP3 is manufactured at Forge Motorsport’s headquarters in Gloucester, United Kingdom, from aerospace-grade 6082 aluminium, then polished to a high-gloss finish. In addition to its attractive appearance, it provides the distinctive, pronounced sound of a blow-off valve.
Suitable for: Alfa Romeo Giulia I (952), Alfa Romeo Stelvio I (949), Jeep Wrangler IV.
Compatible vehicles (manufacturer data)
| Vehicle | Chassis | Years | Engine |
|---|---|---|---|
| Jeep Wrangler (JL) | — | 2018–2026 | 2.0T Onwards) |
Before ordering, check that the product matches your vehicle (model, year and engine). If in doubt, write to us — we will check for you.

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