Active Autowerke Rotrex C38 Kit - E46 1999-2005 328 / 330
SKU: 82795550189

Active Autowerke Rotrex C38 Kit - E46 1999-2005 328 / 330

Sale price$3581.68 Regular price$3979.65
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Active Autowerke Rotrex C38 Kit - E46 1999-2005 328 / 330Active Autowerke Level 2 Supercharger Kit BMW E46 328i Active Autowerkes 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 system uses our dyno tuned software adjustments to manage ignition, fuel, vanos, rev limits, etc all programmed into the same onboard computer your 328i was born with. So the performance mutation from normal to

Active Autowerke Level 2 Supercharger Kit

BMW E46 328i

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 system uses our dyno-tuned software adjustments to manage ignition, fuel, vanos, rev limits, etc – all programmed into the same onboard computer your 328i was born with. So the performance mutation from normal to "extra-assertive’ is smooth and dependable, and totally reversible to stock. Even our oil cooling upgrade is self contained and non-intrusive of the factory oil system. Nothing beats a complete bolt on supercharger system. Bottom line: you get to experience M3 performance in a 328i at an incredibly affordable price. This is a must for the true E46 enthusiast.

The stage 2 system raises the boost levels of this incredible supercharger system and includes a Active Autowerke air to air front mount intercooler. The intercooler helps prevent heat soak and delivers superior performance. With the matching software at the heart of the system the stage 2 system proves to be the ultimate kit for the enthusiast looking to maximize their 328's potential.


Key Features:

  • Rotrex C38-81 trim supercharger
  • Front Mount Air to Air Intercooler
  • Mounting bracket, pulleys and belt
  • 6 larger high-flow fuel injectors
  • Active Autowerke Air Filter (Some models may use K&N)
  • Self-contained oil system with front-mount oil cooler
  • Active Autowerke/Bosch bypass valve
  • Active Autowerke Dyno-Tuned Software
  • All mounting hardware, plumbing, hoses and clamps
  • Illustrated instruction manual & installation guide
  • 2 Year Warranty with free tech support


Performance Specs:

  • Power: 365 BHP @ 7000 RPM
  • Torque: 285 ft-lbs @ 5400 RPM
  • Boost Level: 10.5-11 psi


Note: All supercharger kits may take up to 2 weeks to ship.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 82795550189

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Verified Purchase
JR Landreau
Natrona Heights, US
★★★★★ 5
Engine abd
Good quality, sturdy, and easy to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 7, 2025
K
Verified Purchase
K. Anderson
Alexandria, US
★★★★★ 4
Working great
Both filters fit just right and are doing a great job.
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Reviewed in the United States on October 9, 2025
T
The Southwest Grasshopper
Lowell, US
★★★★★ 5
Good replacement parts and affordable
I acquired this filter set to replace the OEM filters in my wife's Honda Accord. The filters fit perfect and were easy to install. Normally when I replace filters I have to purchase both the air filter and the cabin filter separately. In this case, it was very nice to have them sold as a combo set. While I don't know what materials are used to manufacture these filters, I will say that the air filter looks just like the OEM part in terms of it's production. The cabin filter does have carbon built in to help control orders, which is something the OEM part did  not have, so it looks different in terms of filter color. I normally replace filters every 10K to 15K miles, and this fits in line with that this manufacturer suggests (every 12K miles).  In all, a decent combo set of filters helps keep costs down and both filters can be replaced at the same time. 
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Reviewed in the United States on July 6, 2025
K
K Alex
Phoenix, US
★★★★★ 5
Perfect!!!
This is exactly what I needed. Fits perfectly for my 2018 Honda Accord as well as being very easy to install. This is coming from someone who has no idea about doing anything on my car. Provides the best function, just as it would coming from a dealer or other auto shop. The quality is great as well, and this is exceptional value for the money. If you are looking to save money and not get bombarded with the filter replacement question when getting an oil change then this is the one for you.
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Reviewed in the United States on August 4, 2025
T
T. Isaacson
Boise, US
★★★★★ 5
Fit is good.
Filters fit and look essentially the same as the filters I’ve purchased and the official types from the dealer. I live in an area where wildfires occur almost every year,  so it’s good to have an extra set of filters to change them out after a run of smoky days. 
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Reviewed in the United States on July 1, 2025

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