NGK 94201 Spark Plug for BMW Gen 1 B48 & B58 engines Z4 (E89) Gain up to 17+whp along

Gain up to 17+whp along with terrific sound

High-Quality Carbon Fiber: Lightweight and premium carbon fiber for a sleek

• 2006-2011 E91 Touring - All Models

the tuning complexity increases—Doc Vu’s approach reportedly improved boost consistency and drove down overshoot and timing corrections across revisions

As a leading BMW tuner

NGK 94201 Spark Plug for BMW Gen 1 B48 & B58 engines Z4 (E89) Gain up to 17+whp alongThese NGK 94201 Laser Iridium replacement plugs are specifically designed for the Gen1 BMW B48 B58 engine. Suggested for all factory and tuned applications, including those running E85, WMI, and or larger upgraded turbochargers. We suggest setting the gap down to 0. 022" using a BMS gapping tool. Beware of counterfeit NGK plugs being sold for $5 10 each on eBay and Amazon. They do not offer the same performance, lifespan, and knock resistance. NGK