![]() This retains the use of the stock belt tensioner assembly so there is no need to manually tension the belt or run into belt slipping issues. The VF 325 kit has been designed to run from the stock serpentine belt layout but with a longer OEM-style belt. The goal was better-than-factory drivability and smoothness with more power in the mid-high RPM range. Boost is set at 6psi but thanks to VF software tuning the expected gains are the same, or more, than kits running greater boost. VF disassembled the stock ECU software, re-wrote it using their own maps and algorithms, and tuned the 325i specifically for their Vortech supercharger. The software calibrations have been carried out on multiple test cars in a variety of weather and atmospheric conditions. VF Hex Tuning software (mail-in flash or optional tuning cable).Emissions-friendly crankcase vent system.Hard anodized aluminum and Chromoly bracket.A VF supercharger kit for the E46 325 adds 100hp and over 50ft-lbs of torque in a bolt-on package that can be installed over a weekend! The VF kit is an all-inclusive kit that comes ready to install: Supercharging your E46 325i/325ci/325xi is the best and easiest way to make more power. ![]()
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