SKU: 97506888733

Rear (294x19mm) Stoptech Gas-Slotted Rotors - E46 325i/328i

Sale price$123.30 Regular price$137.00
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Description

Rear (294x19mm) Stoptech Gas-Slotted Rotors - E46 325i/328iPower Slot Rotors Power Slot rotors are 1 piece, slotted, direct replacement discs for your factory brake system and stock calipers. They offer improved cooling as well as other advantages the competition doesn't offer. Launched in 1998, Power Slot was the first premium slotted replacement rotor program in North America. Innovations include e coating, double disc grinding, full machining, mill balancing and center split castings, as well as the



Power Slot Rotors

Power Slot rotors are 1-piece, slotted, direct replacement discs for your factory brake system and stock calipers. They offer improved cooling as well as other advantages the competition doesn't offer. Launched in 1998, Power Slot was the first premium slotted replacement rotor program in North America. Innovations include e-coating, double-disc grinding, full machining, mill balancing and center-split castings, as well as the availability of directional vanes, cryogenic treatment and the use of Power Alloy. Today, Power Slot covers more than 2500 applications, all machined in Power Slot's California manufacturing center. Every Power Slot rotor is a direct replacement for a factory brake rotor, allowing the retention of factory calipers in the system.

Most Power Slot rotors match the original factory cooling vane design. In the most popular sports car and light truck applications, Power Slot has improved the design by using directional (left- and right-handed) vanes to improve cooling. This represents a distinct upgrade from the original equipment rotors, which usually feature a straight vane or pillar vane design. The directional vane is a more efficient air pump. The resulting increase in airflow translates into greater resistance to brake fade and faster recovery from temperature spikes generated by aggressive braking maneuvers.

Power Slot rotors feature a signature "short slot" design. The slot improves brake system performance by wiping away the debris of used friction material that otherwise accumulates between the rotor and pad. This keeps fresh pad material exposed to the rotor surface and helps prevent pad glazing. The edges sweeping the pad slightly increase the effective coefficient of friction, or "bite", amplifying brake system response to pedal input. By providing an escape path for water, slotted rotors can also improve initial brake response under wet conditions.

Every Power Slot rotor is finished with a black e-coating on both sides of the hat, inside the cooling vanes and on the outside edge. E-coating is a superior electro-statically applied finish designed to withstand 400 hours of salt water exposure without rusting. This is especially important on both mounting faces of the hat where it touches the hub flange and back face of the wheel. Any accumulation of rust in these areas can lead to installed lateral runout issues.

Power Slot rotors feature a double disc ground, taper free finish. Double disc grinding ensures parallelism, eliminates run out and provides near perfect disc thickness variation (DTV). Double disc grinding leaves a non-directional finish on the friction surface area for more effective pad and rotor break-in. This special finish also provides quieter and smoother stops.

Power Slot rotors feature 100 percent fully machined finishes including rotor hats. This extra process provides better rotor balance and creates a cleaner, more finished looking component.

Power Slot brake rotors are mill balanced to a tolerance of less than 2 oz-inch. This additional machining operation reduces feedback associated with rotor vibration and provides a smooth, confident application of braking force.

Center-split core castings provide proper heat transfer and thermal efficiency, resulting in superior braking power and safety.

Power Alloy metallurgy is another unique feature in many of Power Slot's rotors. Quality and performance live inside the rotor too. Choosing the correct foundry partner and working to improve the metallurgy are all part of Power Slot's continuous improvement process that helps to reach established targets for hardness and tensile strength. Many of Power Slot's top-selling part numbers are cast using this Power Alloy iron specification, an enhancement in the carbon and molybdenum content of the iron. Carbon and molybdenum promote crack resistance and improve noise, vibration and harshness (NVH).

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: 97506888733

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4.2 ★★★★★
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MasterofNone
Alexandria, US
★★★★★ 5
A Genuine Game-Changer for Manufacturing Management
Color: Matte Black, Clear Lenses, Size: Standard
A Genuine Game-Changer for Manufacturing Management These glasses have been nothing short of life-altering for my career. As a production manager overseeing a manufacturing facility, documenting Standard Operating Procedures (SOPs) has always been a significant hurdle. My primary goal in purchasing these was to record high-quality POV video of processes, which I can then feed into AI tools to generate written SOPs. This isn’t just a win for my productivity; it’s a win for my crew, as it finally provides them with the clear documentation they need to succeed, relieving me of the stress that comes with inconsistent training materials. **Design & Comfort** I initially opted for the larger frame, but the height was a bit much aesthetically for my face. The standard size, however, is excellent. I have a history of headaches from standard eyewear after long days, but these remain comfortable for extended wear. They are impressively discreet—I had multiple people compliment them on day one without ever realizing they were smart glasses. They are convincing enough to pass as normal eyewear to the untrained eye. **Performance & Battery** * **Video & Audio:** The video quality is surprisingly clear, and the microphone performance is exceptional. I’ve taken several calls while wearing them, and the recipients couldn’t tell the difference between these and my phone’s handset. The audio is solid—provided you keep your expectations realistic regarding the low end. The bass is sufficient for daily listening. * **Battery:** This is the one area that requires adjustment. You’ll get about 30+ minutes of continuous recording, which drains the battery quickly. However, the charging speed via the included case is remarkably fast, which helps mitigate the downtime. **The "Unexpected" Features** While I bought these for SOP documentation, the note-taking and translator features have been revelations. On the production floor, I’m constantly pulled in four different directions. When I need to track material requests or quick process changes on the fly, these allow me to capture information immediately so nothing slips through the cracks. It has turned a single-use tool into an all-day essential. **Verdict** I am currently investigating sourcing safety-rated lenses to integrate these into my daily shop-floor workflow. While the frames themselves aren't officially safety-rated, for office-based procedures and light floor work, they have already become a staple of my daily routine. Between the hands-free note-taking, clear communication, and the efficiency they bring to training, these are an incredible value for anyone in a management or technical role. **Pros:** * Excellent microphone and video clarity. * Inconspicuous, stylish design. * Invaluable for hands-free documentation and note-taking. * Fast-charging case. **Cons:** * Battery life is limited during heavy recording sessions. * Frame is not officially rated for high-impact industrial safety environments.
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Reviewed in the United States on May 23, 2026
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Mr Landlord
Pawtucket, US
★★★★★ 5
She loves them!!
Color: Matte Black, Clear Lenses, Size: Standard
Bought these for my daughter that is a content creator.. she does cooking and food reviews.. She absolutely loves these glasses!!!! They aloud her to free up her hands and not have to worry about holding her phone or using a tripod as much.. the video and picture quality is great.. I've heard her both listen to music and talk on the phone with them. They also look great on her. She is going to add her prescription lenses to them.. These meta gen 2 glasses are pricey ($322 plus tax on sale).. But if you creat content even at the regular price its a no brainer..
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Reviewed in the United States on June 8, 2026
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peyton stroder
Louisville, US
★★★★★ 4
You’ll Experience at least one issue
Color: Matte Black, Clear Lenses, Size: Large
These are really nice but after about a month or two there are some issues. I ended up sending mine back cause connection issues. I recommend a protection plan.But when they dod work they were great.
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Reviewed in the United States on May 31, 2026
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Glen Armstrong
Cuba, US
★★★★★ 5
Good protection, easy process
First time filing a claim. Super easy and fast. Nice to have have protection and a smooth claims process when the unfortunate happens..
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Reviewed in the United States on April 25, 2026
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K. Shockley
Lexington, US
★★★★★ 5
Ease of making a claim and quick return time for claim.
Very easy to work with.
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Reviewed in the United States on May 21, 2026

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