SKU: 37055113119

Stoptech Front Cross Drilled Rotors - E9X 335i (348X30mm)

Sale price$241.20 Regular price$268.00
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Description

Stoptech Front Cross Drilled Rotors - E9X 335i (348X30mm)Stoptech Cross Drilled rotors are 1 piece, drilled, 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. 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, Stoptech Cross Drilled



Stoptech Cross-Drilled rotors are 1-piece, drilled, 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. 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, Stoptech Cross-Drilled covers more than 2500 applications, all machined in Stoptech Cross-Drilled California manufacturing center. Every Stoptech Cross-Drilled rotor is a direct replacement for a factory brake rotor, allowing the retention of factory calipers in the system.

 

Most Stoptech Cross-Drilled rotors match the original factory cooling vane design. In the most popular sports car and light truck applications, Stoptech Cross-Drilled 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.

 

Every Stoptech Cross-Drilled 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.

 

Stoptech Cross-Drilled 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.

 

Stoptech Cross-Drilled 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.

 

Stoptech Cross-Drilled 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 Stoptech Cross-Drilled'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 Stoptech Cross-Drilled's continuous improvement process that helps to reach established targets for hardness and tensile strength. Many of Stoptech Cross-Drilled'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
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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: 37055113119

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4.7 ★★★★★
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Gina
Chelsea, US
★★★★★ 5
Cute adorable book "I Love You to the Moon and Back"
Format: Board book, Format: Board book
Review: "I Love You to the Moon and Back " **Rating:** ⭐⭐⭐⭐⭐ Headline: 🧸 Adorable, Durable, and Perfect for a 5-Year-Old! I purchased **"I Love You to the Moon and Back"** for my 5-year-old granddaughter, and it’s an absolute treasure! This is the kind of book that’s a **joy to read aloud** and sturdy enough to handle little hands. **👍 What We Loved (The Pros):** * **Illustrations:** The pictures by **Tim Warnes are fantastic**—they are bright, engaging, and have a lovely, classic feel that really captivates my granddaughter's attention. * **Quality & Durability:** As a **cute little hardcover book**, it's built to last. It holds up well to repeated readings and being carried around the house. * **The Story :** The simple, sweet message is just right for this age group. It reinforces a sweet, loving sentiment and makes for a comforting and quick read before naptime or bed. **📝 Room for Improvement (A Minor Note):** * Honestly, it’s hard to find a fault here. Perhaps just that we wish it was a little longer because she asks to read it immediately again! **Overall Impression:** A wonderful, high-quality picture book that makes a great gift. It combines **beautiful artwork** with an endearing story. We highly recommend it 👍🏾💜
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2025
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Verified Purchase
AK
Whiting, US
★★★★★ 5
Heartwarming book for kids
Format: Board book
I Love You to the Moon and Back is such a sweet and heartwarming book. The story is simple but beautifully written, with gentle words that make it perfect for reading with little ones. The illustrations are soft and comforting, and the message of unconditional love really shines through. It’s one of those books that feels calming at bedtime and special every time you read it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
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Cheryl J
Los Angeles, US
★★★★★ 5
Great story, beautiful pics
Format: Board book
Perfect book to go into a baby shower gift basket. Nice pictures and love the board book
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Reviewed in the United States on May 22, 2026
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Shanise
Houston, US
★★★★★ 5
Good quality book
Format: Board book
I wanted a book that can be a keep sake for my baby. This one is, it is well made and of good quality. I love the little story I read it to my newborn everyday. I love how calm the drawing and even the colors in this book are makes the images less overestimating.
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Reviewed in the United States on April 5, 2026
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Lady B
Omaha, US
★★★★★ 5
The Illustrations are Sweet, Storyline… Great!
Format: Board book
This book is sturdy and has a wonderful message. My grandchildren love it! If you are the one who presents 2 children in a classroom or other setting, most children will really love this book. The durability of the book is great. The illustrations are sweet. The review platform does not allow for me to enter an age span. It does not allow for me to enter multiple ages. It seems to force you to Select one age. I would say that having raised children of my own, I would start reading this book by one years old, but the average child I guess would best benefit with between ages like two and four. The book could be read up to people who are like six years old if they just love a sweet bedtime story.
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Reviewed in the United States on April 28, 2026

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