-17%
Click to zoom in
Give Your E46 The Pedal Feel It Deserves
Years of heat cycles and hard driving leave factory rubber brake hoses soft and spongy, robbing your E46 of the crisp pedal feel it had when new. The Wilwood 221-17412 front flexline kit swaps in a braided stainless steel line, restoring a firm, direct pedal for both the 330Ci and M3.
Key Features
- Direct bolt in replacement for the factory front rubber brake hose
- Braided stainless steel construction resists expansion under hard braking
- DOT compliant for street legal use
- Improves brake pedal feel and response compared to aging rubber lines
- Corrosion resistant PTFE inner liner for long service life
- Wilwood MPN 221-17412 front position kit
Fitment Table
| Year Range | Make | Model |
|---|---|---|
| 2001-2006 | BMW | 330Ci |
| 2001-2006 | BMW | M3 |
Specifications
| Detail | Value |
|---|---|
| Brand | Wilwood |
| MPN | 221-17412 |
| UPC | N/A |
| Position | Front |
| Construction | Braided Stainless Steel, PTFE Liner |
| Compliance | DOT Approved |
What's Included
- Front brake flexlines (pair)
- Mounting hardware
About Wilwood
Wilwood Engineering has designed and manufactured high performance brake systems for street, off road, and racing applications for decades. Their stainless steel flexlines are built to the same standard as their brake kits, giving daily drivers and racers alike a firmer, more consistent pedal.
Related Parts on Our Site
FAQ
What is the Wilwood 221-17412?The Wilwood 221-17412 is a braided stainless steel front brake flexline kit designed to replace the factory rubber brake hose on 2001-2006 BMW 330Ci and M3 models.
Will this flexline fit my E46?This kit fits 2001-2006 BMW 330Ci and M3 model years at the front position. Check your vehicle's model year against the fitment table above to confirm.
Is this brake line DOT legal for street use?Yes, the Wilwood 221-17412 is DOT compliant and legal for street use.
Why upgrade from a rubber brake line to a stainless steel flexline?Rubber brake hoses expand under hydraulic pressure, especially as they age, which softens pedal feel. A braided stainless steel line with a PTFE liner resists that expansion, giving a firmer and more responsive pedal.
Do I need to bleed the brakes after installing this flexline?Yes, the brake system must be bled after installation to remove any air introduced during the swap.
Does this kit include the rear flexlines as well?No, this listing is for the front position only. A separate rear flexline kit is available if replacing all four corners.
What material is the outer covering on this brake line?The line uses a braided stainless steel outer covering over a PTFE inner liner for durability and resistance to abrasion.
Is this the same flexline for both the 330Ci and M3?Yes, the front brake line routing is shared between the 330Ci and M3 for this generation, so the same kit fits both models.
Install Instructions
- Raise and safely support the vehicle, then remove the front wheels.
- Disconnect the factory rubber brake hoses at the hardline and caliper connections.
- Remove the factory hoses and any retaining hardware.
- Install the new Wilwood stainless steel flexlines, connecting them to the hardlines and calipers.
- Torque all fittings to manufacturer specification and secure with any retaining hardware.
- Bleed the brake system to remove air introduced during installation.
- Check for leaks and verify proper pedal feel before returning the vehicle to service.
Brake Line Kits
Brake line kits and stainless steel brake lines for cars, trucks, SUVs, and performance builds are stocked at Black Ops Auto Works. Shop front brake line kits, rear brake line kits, full vehicle brake line sets, braided stainless lines, DOT approved lines, banjo fitting lines, and vehicle specific replacement lines for Hellcat, Trackhawk, TRX, HEMI, Coyote, and import platforms from Rotora, Goodridge, ISR Performance, StopTech, and Black Ops Auto Works. Every brake line kit is filterable by year, make, model, trim, engine, and drivetrain so the correct length, fitting size, and routing ships the first time. Black Ops Auto Works carries 647 brake line kit SKUs across front, rear, and full vehicle categories. What This Collection Covers Brake lines carry pressurized brake fluid from the master cylinder and ABS module to each caliper. Factory rubber brake lines expand slightly under hard braking pressure, which creates a small amount of pedal sponginess. Stainless steel braided lin...
View Brake Line Kits Products
Brakes
Brake parts and complete brake kits for cars, trucks, SUVs, Jeeps, and track builds are stocked at Black Ops Auto Works. Shop brake pads, brake rotors, big brake kits, brake calipers, caliper covers, stainless steel brake lines, brake master cylinders, brake hardware, brake drums, brake shoes, hand brakes, and brake adapters for HEMI, Hellcat, Trackhawk, TRX, LS, LT, Coyote, and EcoBoost platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 14,180 brake SKUs across pads, rotors, big brake kits, calipers, and hydraulic categories. What This Category Covers Brakes are the highest-priority safety upgrade on any modified vehicle. Any horsepower, tire, or suspension change increases the demand placed on the braking system, and a correctly matched pad, rotor, line, and fluid package produces measurable improvements in stopping distance, pedal feel, and heat capacity. This collect...
View Brakes Products
Wilwood
Wilwood high-performance brake parts are stocked at Black Ops Auto Works for import sport-compacts, European sedans, domestic muscle cars, and late-model trucks and SUVs. Shop forged brake kits, brake pad compounds, stainless flexline hose kits, and master cylinder components for platforms like the Honda S2000 and Accord, Audi A4 and A3, VW R32, BMW 3 Series and M3, Toyota Tacoma and Sequoia, and classic Chevrolet Camaro, Nova, and Chevelle. Every Wilwood part here is filterable by year, make, model, and application, from bolt-on flexline upgrades to complete forged caliper kits for classic muscle car builds. Black Ops Auto Works carries 1022 Wilwood SKUs across brake kit, pad compound, and hose categories. What This Brand Covers Wilwood has built high-performance disc brake systems since 1977 and holds ISO 9000 quality certification across its manufacturing. The brand covers motorsports applications as well as agricultural, industrial, utility, snowmobile, quad, motorcycle, and...
View Wilwood Products