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2011 BMW 520I 2
The restrictive factory air filter and air intake housing are replaced by the K&N Typhoon air intake which is designed to dramatically reduce air flow restriction as it smoothes and straightens air flow
Using Soft Start Technology
K&N Red Round Precharger Filter WrapFits 14 x 4" Filter X-Stream Assembly
Universal 4 & 6 Cyl. EFI Dry Nitrous Kit NOS05122 Product:40-75 Horsepower. Suits any 4 & 6 Cyl. EFI Engine 2011 BMW 520I 2Universal 4 & 6 Cyl. EFI Dry Nitrous Kit40 75 Horsepower. Suits any 4 & 6 Cyl. EFI Engine NOS05122 S05122 Owners of sport compacts can benefit from nitrous power, as NOS has developed safe, reliable and highly effective kits that produce from 40 to 60 HP for a large number of applications. Most of these employ "dry" injection technology, where the OEM fuel injection provides the required additional fuel to the motor only when the nitrous system is
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