Active Autowerke E46 328 Supercharger Kit Level 1 x4m The stock S55 midpipe is

The stock S55 midpipe is a dual pipe system from each turbo that leads to the rear muffler

Whenever you alter the crankshaft main pulley size

E9x 135/335/535 N54

These premium V-ribbed belts are designed with aramid fiber loaded stock to provide the longest possible service life with the lowest possibel noise characteristics

Active Autowerke E46 328 Supercharger Kit Level 1 x4m The stock S55 midpipe is***Before your order ships you MUST sign and return the Off Road Use Only Waiver available HERE. Please email, fax or take a photo of the completed form. You can email it to your sales rep or to info@activeautowerke. com and you can fax it to us at (305) 253 8921*** Active Autowerke's 328i supercharger kit provides a much needed boost in horsepower to your E46 328. Specifically designed to run with 91 93 octane pump fuel and your factory ECU, this