Darton MID Sleeves Kit Honda Civic SI 2017+ L15B7/ L15CA Bore from 73mm - 74.5mm 400-115 Thermostats

Darton MID Sleeves Kit Honda Civic SI 2017+ L15B7/ L15CA Bore from 73mm - 74.5mm 400-115 ThermostatsFITS: L15b engines and L15ca Many production cast iron and aluminum blocks suffer from a design weakness of cylinder stability by nature of poor support at the upper deck area. The manufacturing process of "cast in sleeves" provides for economy of scale in low horsepower engines, but does not accommodate high horsepower, high boost, or larger bore sizes. Darton has engineered a superior solution by using a unique designed cylinder sleeve which when

Features the Silver’s North America logo

Customizable: If desired

Has been partially tested with no problems found to date

All Koni Shocks are sold 'per shock' a complete set requires four shocks

Replacing the flimsy plastic OEM unit not only removes the possibility of the plastic bursting under high boost

Complete hardware kit includes bushings

Combine with Plus-1 or Plus-2 wheels and tires

factory-fit installation

- Further increasing the spring rate to enhance overall performance

10th Gen Civic

4mm tubular 'sport' option

2010 - 2016 Honda CR-Z