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By far, the best BANG-FOR-THE-BUCK performance upgrade for your V10 M5 or M6. Simple bolt-on design gives you up to 30 HP and 24 FT-LBS Torque!
Features:
- Bolt-on design
- Billet aluminum
- Black anodized
- Does NOT modify factory harmonics or dampening
- Includes replacement belts and bolts
- Easily reversible
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BMW 
