aFe Silver Bullet Throttle Body Spacer (46-31008) improves airflow and throttle response for 2001–2006 BMW 325i E46 2.5L with billet aluminum construction. This precision-machined spacer is crafted from durable 6061-T6 billet aluminum and features a unique serrated/helix combination design that enhances turbulence without creating the whistling noise typical of helix-only spacers. By increasing intake air speed and improving fuel atomization, it helps optimize combustion for improved horsepower, torque, and throttle response.
Key Features :
Designed for 2001–2006 BMW 325i E46 2.5L L6 engines
Serrated/helix design improves air turbulence and combustion efficiency
Reduces intake whistle compared to helix-only spacers
Increases horsepower, torque, and throttle response
Constructed from 6061-T6 billet aluminum for strength and light weight
Extends the intake track to enhance air velocity
Direct bolt-on installation with no modifications required
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