The Mishimoto silicone intake boot for BMW E90/E92 N52 engines replaces the OE resonated boot with a five-layer silicone hose reinforced by steel rings to resist collapse under boost. Removing the resonator increases engine and intake tone while retaining compatibility with the stock airbox and single- or 3-stage intake manifolds. Mishimoto backs the boot with its Lifetime Warranty for leak protection.
Mishimoto BMW E90/E92 w/ N52 Engine Black Silicone Intake Boot