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Description
Active Autowerke Prima PLUS Upgrade Kit - BMW / E46 / M3Active Autowerke E46 M3 PRIMA PLUS + SC with 600 horsepower UPGRADE KIT ***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*** As producer of one of the finest working supercharger systems for the BMW E46 M3, Active Autowerke is proud to
Active Autowerke E46 M3 PRIMA PLUS + SC with 600 horsepower UPGRADE KIT
As producer of one of the finest working supercharger systems for the BMW E46 M3, Active Autowerke is
proud to introduce the PRIMA PLUS supercharger system capable of exceeding 500 WHP running on
pump drawn 93 octane. The PRIMA PLUS is an upgrade kit to the existing PRIMA supercharger system
designed to create MORE horsepower.
In collaboration with Frank Smith of Tuning Tech FS, the Prima PLUS SC kit has evolved as a fantastic
performer. With numerous dyno runs under countless hours all monitored through careful Data Logging and
Lean/Rich evaluation, this PRIMA PLUS supercharger kit is ready for the BMW enthusiast.
Special thanks goes out to Frank Smith and the guys at Tuning Tech,FS, a Active Autowerke Dealer in the
Special thanks goes out to Frank Smith and the guys at Tuning Tech,FS, a Active Autowerke Dealer in the
Maryland area to help launch this supercharger system.
The PRIMA PLUS is a centrifugal design supercharger using a conventional fixed drive pulley, but unlike it's
predecessors, the PRIMA PLUS also has variable boost settings of 9.0 psi and 9.5 psi to help attain the power.
A first in the BMW forced induction industry.
For easy comparisons, here is where the PRIMA and PRIMA PLUS + stands when measuring rear wheel horsepower.
A stock BMW E46 M3 is around 265 WHP.PRIMA SC makes 425 WHP. PRIMA PLUS SC makes 500+ WHP.
Customer impression:
"...I intend to go to race fuel (104+) in the spring when I can drive it more.
So far the acceleration plants you into the seat. 1st and 2nd gear have the
rear tires searching for grip and I am running a 275 R compound tire. The
car feels alive and the power band is exceptionally characteristic of the
original power plant but just more power everywhere. There is no lag in
power delivery and is easy to modulate in partial and full throttle scenarios...."
MJTSUB
M3Forums member
BMW E46 M3 SC with AA PRIMA PLUS +
So far the acceleration plants you into the seat. 1st and 2nd gear have the
rear tires searching for grip and I am running a 275 R compound tire. The
car feels alive and the power band is exceptionally characteristic of the
original power plant but just more power everywhere. There is no lag in
power delivery and is easy to modulate in partial and full throttle scenarios...."
MJTSUB
M3Forums member
BMW E46 M3 SC with AA PRIMA PLUS +
How Does It Work:
Running without a front mounted intercooler, the PRIMA PLUS + relies on Water/Methanol and precise tuning to
make it happen. When activated by the flip of a switch, the system develops 9.5 psi of boost and 500 + WHP.*
The Water/Methanol system combined with proper software tuning performs flawlessly, but if a problem arises
such as a low WA/Meth fluid level, excessive detonation, etc. there a immediate safeguard built in.
The system will automatically default back to the 6.0 psi level to prevent any damage to the motor.
Now you can enter the F.I. realm with a proven company known for reliability and proven performance.
Active Autowerke invites you to Come Play with Poweru201d with your BMW.
*Dyno results achieved with stock motor on BMW E46 M3 running 93 octane fuel.
*Car equipped with exhaust mods like headers, section 1 and a rear exhaust.
*Car equipped with exhaust mods like headers, section 1 and a rear exhaust.
Key Features:
- Complete WA/Meth system
- Designated trunk mounted WA tank with holding base
- WA pump with internal seals and nozzles to accommodate methanol
- Non intrusive mounting helps maintain existing factory trunk space (exception Convertible models)
- Integrated wiring with fail safe features
- Precise software tuning to match designated boost levels
- Operates on 93 pump octane
- Detailed Step by Step Instructions
Performance Specs:
Boost: 9.5 psi
Stock Horsepower:333 HP @ 7900RPM
Supercharged Horsepower: 600+HP @ 8100RPM
Stock Horsepower:333 HP @ 7900RPM
Supercharged Horsepower: 600+HP @ 8100RPM
Stock Torque:268 Ft Lbs @ 4800RPM
Supercharge Torque: 393 Ft Lbs @ 8100RPM
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.4 ★★★★★
Based on 1346 reviews
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Product Reviews
★★★★★ 5
Surprisingly great for my wide feet and high instep!
Size: 10.5, Color: Velvet Tan/Gum 2
So thrilled I took a chance on these. Finding boots is impossible for me. I have wide feet, a super high instep, a bunion on one foot, and I wear a hard to find size (10.5). I ordered the 10.5 and 11 in these expecting I might need to size up for width (if I could even get them on). It was a struggle getting the 10.5s on the first time, and once I did they were somewhat uncomfortable on the top of my left foot. But I read that they would relax so decided to give it a go because I need waterproof boots for an upcoming trip and the 11s felt too long. After two days of light wear, they are already breaking in and I have no more discomfort. Getting them on is already easier and they are plenty wide enough and very comfortable to walk in. These are true to size. Super happy and worth a day of mild discomfort to break them in!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2026
★★★★★ 5
Comfortable, sturdy, waterproof
Size: 9.5, Color: Black/Black
Loce, love, love these boots. Have walked ten miles with no foot pain around NYC. They go with everything and and are so comfortable. As they are waterproof/resistant, they get a little warm in high temps, but perfect three-season boots.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
★★★★★ 5
Super cute, comfortable, practical, love that they are slip on
Size: 10.5, Color: Tobacco/Black
I have worn these 2-3 times already. The first day was a school/work day so I was on my feet 9 hours and the only issue I had was with the side of the boot rubbing against my ankle. I just make sure I wear socks high enough to cover my ankles or jeans that go into the boots now for long wear days.
Absolutely love them! They keep my feet dry in this snow( we live in Michigan). I had been looking for a pair like this for awhile now and was getting super frustrated that I couldn't find my size in any that I liked. I saw that they had these available in a 10.5 and I wear 11. I looked at the Sorel website reviews (since the amazon ones weren't super helpful on sizing) and they said that the boots ran big so I took a chance on the 10.5 fitting me. They fit perfect. I have long narrow feet but I could see where they would be tight or uncomfortable on someone with wider feet. I've been trying to find a pair for my mom now since she has boot envy.
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Reviewed in the United States on January 27, 2026
★★★★★ 5
Worth it.
Size: 8.5, Color: Crushed Clay/Gum 2
Love all my Sorels. These were really cute, good color, comfortable, warm, fit well, good quality and sturdy. I would order again.
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Reviewed in the United States on March 26, 2026
★★★★★ 5
Fantastic Boots!
Size: 8.5, Color: Redwood/Gum 10
Completely satisfied with these boots. True to size, well made, comfortable from the get-go; not break in needed. Waterproof- really. The Red Suede has withstood a nasty winter season & still looks great. Good traction. I like the ankle height which looks good with long, mid length pants & leggings. I love the easy slip on/off aspect..made getting ready for dog walking easy. I 100%recommend!
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Reviewed in the United States on April 11, 2026
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