Turbosmart's Boost Reference Adapters (BRAs) allow access to a reliable boost reference

Perfect fit under OE E46 fender with 18x8

you can set your boost anywhere from zero up to ‘All of it’ – All from your laptop or tuning interface

Adjustment Nuts

it will struggle to keep up

Clutch Kit - Xtreme Performance Heavy Duty Organic KHN22532-1A JRX9 Turbosmart's Boost Reference Adapters (BRAs)The Stage 1 clutch kit uses an upgraded pressure plate with increased clamping pressure, combined with an organic friction disc. Stage 1 delivers substantial increases in performance and power holding capability whilst retaining near factory type driveability, and is designed primarily for high performance road going vehicles. These kits feature a high quality cover with increased clamping force compared with standard, between 20 40% depending on the