Know your exact ethanol content in real-time via the Fuel-It! or JB4 mobile app on your smartphone or tablet. For stock HPFP/no port injection configurations.
- Brand:
-
- ES#:
- 4715476
- Mfg#:
- FFK-S55-STO
Ships on Aug 7, 2026
$549.99 USD
Free Shipping
Lifetime Replacement