Home
053681LA - B58 Performance Ignition Coil Conversion Kit - Early N55

B58 Performance Ignition Coil Conversion Kit - Early N55

Transform your N55-powered BMW with the Turner Motorsport B58 Ignition Coil Conversion Kit—the ultimate solution for ignition system reliability and performance. Designed to eliminate the notorious misfires and power loss caused by factory OE pencil-style ignition coils, this kit is a game-changer for stock and modified vehicles alike. Whether you're chasing more power or improved drivability, the B58 ignition coils deliver up to 2.3x more spark energy, unleashing the full potential of your engine.

Why upgrade? The answer is simple: B58 ignition coils outperform all other ignition upgrades on the market with unparalleled spark energy and reliability. Ideal for high-performance builds or daily drivers, this kit eliminates common ignition problems while supporting increased power demands from software tunes like MHD or BM3. Plus, with the included plug-and-play wiring harness and proprietary boots, installation is seamless—no cutting or splicing is required.

Features:

Up to 2.3x More Spark Energy: Maximizes overall performance, offering sufficient output for heavily modified engines. Plug-and-Play Installation: Includes custom brackets, wiring harnesses, and boots designed for factory mounting locations—no modifications needed. DME Compatibility: Compatible with factory engine management software for hassle-free integration. Rugged Durability: Bolt-on brackets are precision-machined from 6061-T6 aluminum with a sleek black anodized finish for a premium look and long-lasting performance. Proprietary Design: Boots feature a built-in 1k OHM resistor to prevent electrical contact failures commonly seen in other kits. Kit Contents:

(6) Turner Motorsport B58 Ignition Coils (6) Turner Motorsport B58 Ignition Coil Conversion Boots (6) Turner Motorsport B58 Ignition Coil Conversion Wiring Harnesses (3) Turner Motorsport B58 Ignition Coil Conversion Brackets Optional Kit Selections:

Spark Plugs: Bosch ZGR6STE2 (OEM) NGK 97506 (One Step Colder) Spark Plug Socket: Schwaben 14mm 12pt Magnetic Socket Schwaben 14mm 12pt Swivel Socket Turner Motorsport offers a comprehensive installation guide, including detailed removal instructions and high-resolution images. Visit the Installation Tab for the step-by-step guide to completing your ignition system upgrade.

Say goodbye to misfires and hello to unparalleled ignition performance with the Turner Motorsport B58 Ignition Coil Conversion Kit. Designed with precision and engineered for reliability, it’s the ultimate upgrade for your N55-powered BMW!

Turner Motorsport

T#: 36235522 | Part#: 053681LA

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

1 of

2 of

3 of

4 of

5 of

6 of

7 of

8 of

9 of

10 of

11 of

12 of

13 of

14 of

15 of

16 of

17 of

18 of

19 of

20 of

21 of

22 of

23 of

Checking Vehicle Fitment...

Starting at $419.39

SALE: $419.39 (10% OFF)

WAS: $465.99 on 01-03-2026

This product was last offered at the strikethrough price on
01-03-2026

With selected options

Free Shipping

Availability:

In Stock

Est. Ship Date:

Today

Qty

Add to Wish List

Product Details

Transform your N55-powered BMW with the Turner Motorsport B58 Ignition Coil Conversion Kit—the ultimate solution for ignition system reliability and performance. Designed to eliminate the notorious misfires and power loss caused by factory OE pencil-style ignition coils, this kit is a game-changer for stock and modified vehicles alike. Whether you're chasing more power or improved drivability, the B58 ignition coils deliver up to 2.3x more spark energy, unleashing the full potential of your engine.

Features:

Up to 2.3x More Spark Energy: Maximizes overall performance, offering sufficient output for heavily modified engines.
Plug-and-Play Installation: Includes custom brackets, wiring harnesses, and boots designed for factory mounting locations—no modifications needed.
DME Compatibility: Compatible with factory engine management software for hassle-free integration.
Rugged Durability: Bolt-on brackets are precision-machined from 6061-T6 aluminum with a sleek black anodized finish for a premium look and long-lasting performance.
Proprietary Design: Boots feature a built-in 1k OHM resistor to prevent electrical contact failures commonly seen in other kits.

Kit Contents:

(6) Turner Motorsport B Series Ignition Coils for N554/N55
(6) Turner Motorsport B58 Ignition Coil Conversion Wiring Adapters
(3) Turner Motorsport B58 Ignition Coil Conversion Brackets

Optional Kit Selections:

Spark Plugs:
- Bosch ZGR6STE2 (OEM)
- NGK 97506 (One Step Colder)
Spark Plug Socket:
- Schwaben 14mm 12pt Magnetic Socket
- Schwaben 14mm 12pt Swivel Socket

Turner Motorsport offers a comprehensive installation guide, including detailed removal instructions and high-resolution images.

Installation:

- Click HERE for Installation Instructions -

Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.

Prop 65 Warning

Cross Reference

11127570028
12138616153
12 13 8 616 153
601-0021
601-0020

Product Q&A

Lifetime Replacement

Fits These Cars

MAKE	MODEL	SUBMODEL	ENGINE	Special Fitment Notes
BMW	E70	X5	N55 3.0L	For Vehicles Produced Before 01/2011
BMW	E70	X5 xDrive35i	N55 3.0L	For Vehicles Produced Before 01/2011
BMW	E71	X6 xDrive35i	N55 3.0L	For Vehicles Produced Before 01/2011
BMW	E82	135i	N55 3.0L	For Vehicles Produced Before 01/2011
BMW	E88	135i	N55 3.0L	For Vehicles Produced Before 01/2011
BMW	E90	335i	N55 3.0L	For Vehicles Produced Before 01/2011
BMW	E90	335xi	N55 3.0L	For Vehicles Produced Before 01/2011
BMW	E92	335i	N55 3.0L	For Vehicles Produced Before 01/2011
BMW	E92	335xi	N55 3.0L	For Vehicles Produced Before 01/2011
BMW	E93	335i	N55 3.0L	For Vehicles Produced Before 01/2011
BMW	F07	535i	N55 3.0L	For Vehicles Produced Before 01/2011
BMW	F07	535i xDrive	N55 3.0L	For Vehicles Produced Before 01/2011
BMW	F10	535i	N55 3.0L	For Vehicles Produced Before 01/2011
BMW	F10	535i xDrive	N55 3.0L	For Vehicles Produced Before 01/2011
BMW	F10	ActiveHybrid 5	N55 3.0L	For Vehicles Produced Before 01/2011
BMW	F12	640i	N55 3.0L	For Vehicles Produced Before 01/2011
BMW	F12	640i xDrive	N55 3.0L	For Vehicles Produced Before 01/2011
BMW	F25	xDrive3.5i	N55 3.0L	For Vehicles Produced Before 01/2011

*The above product applications have been written by Turner Motorsport. All warranties, product application, fitment, and performance are the responsibility of Turner Motorsport. For additional information see the terms of use.