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Asign 3199 Iridium Spark Plugs for BMW E46 E39 E53 E83 E85 325i 330i 525i 530i X3 X5 Z4

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Brand Model Model Year Engine
BMW 320i 1992-1995 2.0L I6
323is 1998-1999 2.5L I6
323i 1998-2000
Z3 1999-2002
323Ci 2000
325i / 325xi 2001-2005
325Ci 2001-2006
Z4 2003-2005
X3 2004-2006
328is 1996-1999 2.8L I6
328i 1996-2000
528i 1997-2000
Z3 1997-2000
328Ci 2000
Z3 2001-2002 3.0L I6
330i / 330xi 2001-2005
530i 2001-2005
330Ci 2001-2006
X5 2001-2006
Z4 2003-2005
X3 2004-2006
M3 1996-1999 3.2L I6
Z3 1998-2000
Porsche Boxster 2003-2004 2.7L H6
Boxster 2001-2004 3.2L H6
911 2001-2002, 2005 3.6L H6
Volvo 960 1995-1997 2.9L I6
S90 / V90 1997-1998
S80 1999-2004
S80 2000-2003
Cadillac CTS 2003-2004 3.2L V6


Overview
Restore the smooth idling and responsive acceleration of your classic European performance engine with Asign 3199 Iridium Spark Plugs. Designed as a direct OE replacement for part numbers BKR6EQUP and 12120037607, these plugs are optimized for the legendary BMW M52 and M54 engine families, as well as select Porsche and Cadillac models. By utilizing high-grade iridium, Asign provides a significantly more durable and stable spark compared to standard copper or platinum plugs. This ensures your vehicle maintains peak performance and lower emissions throughout its service life.

Product Feature:

  • High-Performance Iridium Tip: Features an extremely fine iridium center electrode that concentrates spark energy for faster starts and smoother acceleration.

  • Superior Heat Management: Embedded with a high-conductivity copper core to improve heat dissipation, preventing engine overheating and pre-ignition.

  • Enhanced Fuel Efficiency: Optimized combustion helps reduce fuel consumption and exhaust emissions, offering a service life significantly longer than traditional plugs.

  • Broad German Engineering Compatibility: Precision-engineered for 1996-2006 BMW models (325i, 330i, 525i, 530i, X3, X5, Z3, Z4) and 2001-2005 Porsche 911/Boxster.

  • Industrial-Grade Insulation: Constructed with isostatically pressed ceramic for high thermal resistance and superior electrical insulation under high-voltage conditions.

  • Direct OE Fitment: Fully compatible with OE part numbers 3199, BKR6EQUP, 12120037607, 12129071003, and 12120141871.

Asign 3199 Iridium Spark Plugs for BMW E46 E39 E53 E83 E85 325i 330i 525i 530i X3 X5 Z4 Asign 3199 Iridium Spark Plugs for BMW E46 E39 E53 E83 E85 325i 330i 525i 530i X3 X5 Z4 Asign 3199 Iridium Spark Plugs for BMW E46 E39 E53 E83 E85 325i 330i 525i 530i X3 X5 Z4 Asign 3199 Iridium Spark Plugs for BMW E46 E39 E53 E83 E85 325i 330i 525i 530i X3 X5 Z4 Asign 3199 Iridium Spark Plugs for BMW E46 E39 E53 E83 E85 325i 330i 525i 530i X3 X5 Z4 Asign 3199 Iridium Spark Plugs for BMW E46 E39 E53 E83 E85 325i 330i 525i 530i X3 X5 Z4
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Frequently Asked Questions
What makes Asign different from other brands?
Asign stands out by offering meticulously designed carbon fiber kits that fit seamlessly with a variety of vehicle models. Our commitment to precision, use of high-quality materials, and focus on ease of installation set us apart in the market.
Why should I choose Asign's carbon fiber kits?

A1: Precision Design & Fit

Our design process strictly follows original vehicle specifications to ensure a perfect fit for your car. We approach each product with exceptional care and attention to detail.

A2: High-Quality Materials & Manufacturing
Asign uses the highest precision steel molds for production, reducing errors and maximizing accuracy. We employ pre-impregnated carbon fiber for all our products, making them genuine and lightweight, yet as strong as steel.

A3: Easy Installation & Non-Destructive Removal
Most of our carbon fiber kits can be installed in under 10 minutes (excluding special items like Front Splitters, Rear Diffusers, and Exhaust Tips). Designed for quick installation and removal without damaging your car's surface, our products offer both convenience and flexibility.

How does Asign ensure product quality?
Asign upholds strict quality control standards throughout the production process. We use premium materials and advanced manufacturing techniques, followed by comprehensive testing to ensure every product meets our high standards for performance and durability.
What if I have a quality issue with my product?
If you encounter any quality issues with your Asign product, please contact our customer service team right away. We will promptly address your concerns and offer solutions, including replacements or refunds, as appropriate.
How can I make sure the product I order fits my vehicle?
Before placing an order, carefully check your vehicle's specifications and refer to the product description for compatibility information. If you have any questions or concerns, our customer service team is always available to provide personalized advice and guidance.
What is Asign's return policy?
Our return policy varies depending on the specific product and the reason for the return. Please refer to our website or contact our customer service team for detailed information on our return and exchange procedures.