OE Quality
60-Day Returns

Karlyn 358W/LOOM Spark Plug Wire Set
Reliable Spark Plug Wire Set for BMW M5 and M6
The Karlyn Bremi-STI 358W/LOOM spark plug wire set is designed specifically for BMW M5 and M6 models. Featuring OEM boot type and engine compatibility, this set ensures precise fitment and reliable ignition performance.
- OEM boot type for secure and proper connection
- Available in black and blue color options
- Compatible with OEM engine specifications
- Designed for BMW M5 and M6 models
- Part number 358W/LOOM for exact identification
About the Bremi-STI Product Line
The Bremi-STI line by Karlyn focuses on ignition components engineered to meet OEM standards. This product line emphasizes durability and precise fitment, making it suitable for high-performance vehicles like the BMW M5 and M6. The 358W/LOOM spark plug wire set benefits from this focus, providing consistent ignition wire performance aligned with factory specifications.
Detailed Product Description
This spark plug wire set includes wires with OEM boot types, ensuring a secure and proper connection to the spark plugs and ignition coils. The wires come in black and blue colors, allowing for visual identification or matching to engine bay aesthetics. Designed to meet OEM engine requirements, the 358W/LOOM set supports optimal ignition timing and electrical conductivity. This helps maintain engine efficiency and smooth operation in BMW M5 and M6 vehicles.
Common Applications and Issues Addressed
- Replacement of worn or damaged spark plug wires in BMW M5 and M6
- Resolving misfires caused by faulty ignition wires
- Improving engine performance and fuel efficiency
- Eliminating ignition-related rough idling or hesitation
- Maintaining OEM-level ignition system integrity
Installation Notes and Tips
Ensure the ignition system is cool before installation to avoid damage. Match each wire to its corresponding spark plug and coil terminal based on length and routing. The OEM boot type facilitates a secure fit, but verify connections are tight to prevent arcing. Follow BMW-specific service guidelines for ignition wire replacement to maintain proper engine performance.
Quality Assurance and Warranty
The Karlyn Bremi-STI 358W/LOOM spark plug wire set is manufactured to meet OEM standards for fit and function. While specific warranty details are not provided, Karlyn products typically undergo rigorous quality control to ensure reliability and durability in demanding automotive applications.
| Brand | Karlyn |
| Part Number | 358W/LOOM |
| Position | Bremi-STI |
| Boot Type | Oem |
| Color | Black |
| Color | Blue |
| Engine | Oem |
This part fits 3 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1988 | BMW | M5 | N/A | w/Loom; Blue Or Black Silicone Wire; Bremi-STI |
| 1988 | BMW | M6 | N/A | w/Loom; Blue Or Black Silicone Wire; Bremi-STI |
| 1987 | BMW | M6 | N/A | w/Loom; Blue Or Black Silicone Wire; Bremi-STI |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.