HomeIgnition > Ignition Wire and Related ComponentsKarlyn 358W/LOOM Spark Plug Wire Set
Part #: 358W/LOOM

Karlyn 358W/LOOM Spark Plug Wire Set

Bremi-STI
⚙️ 3 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$341.24Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Bremi-STI
🚗Fitment: BMW, M5 and M6
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

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.

BrandKarlyn
Part Number358W/LOOM
PositionBremi-STI
Boot TypeOem
ColorBlack
ColorBlue
EngineOem

This part fits 3 vehicles. Search below:

YearMakeModelPositionNotes
1988BMWM5N/Aw/Loom; Blue Or Black Silicone Wire; Bremi-STI
1988BMWM6N/Aw/Loom; Blue Or Black Silicone Wire; Bremi-STI
1987BMWM6N/Aw/Loom; Blue Or Black Silicone Wire; Bremi-STI

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.