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Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 05-30-2014, 12:24 PM   #1
Registered User
Join Date: Feb 2013
Location: Maple Valley WA
Posts: 383
My Ride: 2004 e46 M3 cabrio
Advanced Flow Engineering (aFe) cold air intake stage 1 DIY guide and review

Howdy all!

I have had the pleasure of working with aFe directly, and partnering with them to create a full DIY installation guide for the stage 1 CAI kit, magnum force intake tube and intake system scoop!

I wanted to share the guide here along with the review of the products as well. This is specifically for the M3, but they make products for a really wide line of vehicles so is applicable for everyone. Side note: I wish they made one for my GSX-R!

In short, I am REALLY impressed with the quality of the products and results of the installation. This has been the best bang for the buck performance install I have done on my M3 yet.

I cannot recommend these kits more highly.. there are many CAI kits out there, but all of my local independent shops (I checked with them first!) recommend aFe as the best of the lot and I understand why now.

Check the attached links for the formal review and install guide, and feel free to ask any questions here or send me a PM!

Review excerpt:

Review and notes

The BMW e46 3 series is an incredible work of automotive art and mechanical design. Even as the E46 is more than ten years old, it still turns heads and creates jealous looks at stop lights and parking lot conversations.

As the cars have aged though, technology and automotive design has continued to advance and improve in a number of ways. The good news is those advances can be easily integrated into our BMWs to improve their already impressive performance.

A cold air intake is a tremendously economical way of both improving stock performance and how your car sounds. This is an excellent place to upgrade your car as the return on investment is very high both in direct value and in the time to do the work and Advanced Flow Engineering (AFE) is a fantastic place to start.

The Advanced Flow Engineering cold air intake stage 1 is a substantial change from the OEM airbox design and filter. At peak it adds 11 horse power and 10 pounds of torque which is a significant increase you can both hear and feel. Adding real horsepower to a car as well designed as the BMW M3 can be a challenge, but this product actually does it.

I won’t repeat all of the posted statistics as you can refer to them here, but will focus on how it feels and sounds to have this CAI installed. What matters is how the dry statistics of HP and torque gain translate into the literal and visceral sensation of driving your car. Instead of formal dyno statistics, what do your ears and your “butt-dyno” tell you?

How does the car feel?

Quick notes regarding installation:

The CAI stage 1 kit was installed with the Pro 5R oiled air filter and optional intake system scoop and torque booster tube. I highly recommend including both as they do what you need and provide higher air volume into the airbox. Refer to the installation guide links included below for HOW to install these products.

Testing components:

Magnum FORCE Stage-1 PRO 5R Intake System; BMW M3 (E46) 01-07 L6-3.2L 54-10461

Magnum FORCE Intake System Scoop; BMW 3-Series/ M3 (E46) 01-06 L6 54-10468

Magnum FORCE Torque Booster Tube; BMW M3 (E46) 01-07 L6-3.2L (Blk) 54-10469-B

Last edited by raichean; 05-30-2014 at 12:26 PM.
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Old 05-30-2014, 12:48 PM   #2
Registered User
Join Date: Feb 2013
Location: Maple Valley WA
Posts: 383
My Ride: 2004 e46 M3 cabrio
I have access to an E82 (X3) E60 (550) and two E92s as well (335i and M3) and if there is interest and need I may be able to partner with them further to do those as well. If interested in those, please shoot me a PM or (better) a reply here?


Last edited by raichean; 06-03-2014 at 03:22 PM.
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