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BMW F36 440i xDrive B58 3.0L

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Your Vehicle BMW F36 440i xDrive B58 3.0L
Your Vehicle BMW F36 440i xDrive B58 3.0L
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Turner B58 Ignition Coil Conversion Kits For N54 & N55

Eliminate misfires and unleash the full potential of your N54/N55 with this industry-leading B58 ignition coil upgrade. Designed for easy installation and unparalleled reliability, it is the ultimate plug-and-play solution for performance enthusiasts.

WHY UPGRADE?

B58 ignition coils provide up to 2.3 times more spark energy than OE N55 pencil-style ignition coils, effectively eliminating misfires even on high-performance setups. Whether your vehicle is heavily modified or completely stock, these ignition coils deliver unparalleled performance with zero downsides! For tuners, the Turner Motorsport kit also allows for precise adjustments to ignition dwell time through compatible tuning software (MHD, BM3, etc.), giving you complete control over your engines performance.


Supports Over 1,000 HP!

Fits BMW: E9X / E8X N54 / N55 Engines

E82 / E88 135i N54/N55

E90 / E92 / E93 335i N54/N55

‹ ›
ES#4858895 - 053328LA - B58 Ignition Coil Conversion Kit - N54 - The ULTIMATE N54 ignition system upgrade! This plug-and-play conversion kit offers a 2.3x increase in spark energy and supports over 1000 HP. - Turner Motorsport - BMW
B58 Ignition Coil Conversion Kit - N54
The ULTIMATE N54 ignition system upgrade! This plug-and-play conversion kit offers a 2.3x increase in spark energy and supports over 1000 HP.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Turner Motorsport - Corporate Logo
ES#: 4858895
Mfg#: 053328LA

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Availability:
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Starting at $436.04 USD
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This product is lifetime replacement eligible Lifetime Replacement
ES#4858896 - 053681LA - B58 Ignition Coil Conversion Kit - Early N55 - The ULTIMATE N55 ignition system upgrade! This plug-and-play conversion kit offers a 2.3x increase in spark energy and supports over 1000 HP. - Turner Motorsport - BMW
B58 Ignition Coil Conversion Kit - Early N55
The ULTIMATE N55 ignition system upgrade! This plug-and-play conversion kit offers a 2.3x increase in spark energy and supports over 1000 HP.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Turner Motorsport - Corporate Logo
ES#: 4858896
Mfg#: 053681LA

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Availability:
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Starting at $413.09 USD
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This product is lifetime replacement eligible Lifetime Replacement
ES#4615596 - MHDWIRELESSV2 - MHD Wireless OBDII "Universal" Wifi Flash Adapter V2 - Can leave this dongle plugged in without draining battery. Enables you to wirelessly load MHD flashes and several other functions to your BMW when paired with an Android or iOS device! Compatible with E, F, & G Chassis BMWs! - MHD Tuning - BMW
MHD Wireless OBDII "Universal" Wifi Flash Adapter V2
Can leave this dongle plugged in without draining battery. Enables you to wirelessly load MHD flashes and several other functions to your BMW when paired with an Android or iOS device! Compatible with E, F, & G Chassis BMWs!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Newest MHD Flash Adapter - works with E F & G Chassis BMWs!
Brand: MHD Tuning - Corporate Logo
ES#: 4615596
Mfg#: MHDWIRELESSV2

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Availability:
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$99.99 USD
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This product is lifetime replacement eligible Lifetime Replacement
ES#4365475 - 007629la09KT - Turner Motorsport E9x Cowl Delete Kit - Get rid of all your plastic in your engine bay for a cleaner look! Completely eliminates the bulky, obtrusive cabin filter housing for more room underhood - offering more room to access the engine. Compliment your engine bay and hide away the exposed ECU. - Turner Motorsport - BMW
ECS Tuning recommends this product.
Turner Motorsport E9x Cowl Delete Kit
Get rid of all your plastic in your engine bay for a cleaner look! Completely eliminates the bulky, obtrusive cabin filter housing for more room underhood - offering more room to access the engine. Compliment your engine bay and hide away the exposed ECU.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Turner Motorsport - Corporate Logo
ES#: 4365475
Mfg#: 007629LA09KT

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Availability:
In Stock
On SALE Save 25%
$420.95

This product was last offered at the strikethrough price on
06-13-2026

$315.71 USD
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This product is lifetime replacement eligible Lifetime Replacement
ES#4809843 - 008731la01KT - N54/N55 Billet Oil Cooler Housing - Reduce oil temperatures with the upgraded billet housing and low-temp thermostat! Allows you to add an oil cooler to your vehicle that didn't have the factory option. - Turner Motorsport - BMW
N54/N55 Billet Oil Cooler Housing
Reduce oil temperatures with the upgraded billet housing and low-temp thermostat! Allows you to add an oil cooler to your vehicle that didn't have the factory option.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Turner Motorsport - Corporate Logo
ES#: 4809843
Mfg#: 008731LA01KT

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Availability:
In Stock
On SALE Save 25%
$343.99

This product was last offered at the strikethrough price on
06-13-2026

$257.99 USD
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on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4635669 - 008378LA02 - N20/N52/N54 Heavy Duty Aluminum Expansion Tank Kit - As expansion tanks age, they are prone to cracking or even exploding. Replace your factory plastic coolant reservoir with a Turner Heavy Duty aluminum tank for durability and piece of mind! - Turner Motorsport - BMW
ECS Tuning recommends this product.
N20/N52/N54 Heavy Duty Aluminum Expansion Tank Kit
As expansion tanks age, they are prone to cracking or even exploding. Replace your factory plastic coolant reservoir with a Turner Heavy Duty aluminum tank for durability and piece of mind!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Turner Motorsport - Corporate Logo
ES#: 4635669
Mfg#: 008378LA02

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Availability:
Ships on Jul 29, 2026
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On SALE Save 20%
$479.99

This product was last offered at the strikethrough price on
06-13-2026

$383.99 USD
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on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3647095 - 021942tms13 - N54 Aluminum Coolant Expansion Tank Relocation Kit - 335i - Ditch the weak, factory plastic coolant expansion tank and free up space on the hot side of your engine bay! - Turner Motorsport - BMW
ECS Tuning recommends this product.
N54 Aluminum Coolant Expansion Tank Relocation Kit - 335i
Ditch the weak, factory plastic coolant expansion tank and free up space on the hot side of your engine bay!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Compatible with factory/aftermarket cold side intakes as well as hot side intakes!
Brand: Turner Motorsport - Corporate Logo
ES#: 3647095
Mfg#: 021942TMS13

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Availability:
Ships on Sep 3, 2026
On SALE Save 15%
$815.99

This product was last offered at the strikethrough price on
05-02-2026

$693.59 USD
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This product is lifetime replacement eligible Lifetime Replacement
ES#4817875 - 050610LA02 - N55 Heavy Duty Aluminum Expansion Tank Kit - The last expansion tank you'll ever need! Upgrade to durable aluminum construction and leave failure-prone plastic behind. - Turner Motorsport - BMW
ECS Tuning recommends this product.
N55 Heavy Duty Aluminum Expansion Tank Kit
The last expansion tank you'll ever need! Upgrade to durable aluminum construction and leave failure-prone plastic behind.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Turner Motorsport - Corporate Logo
ES#: 4817875
Mfg#: 050610LA02

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
Ships on Jul 27, 2026
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On SALE Save 25%
$457.99

This product was last offered at the strikethrough price on
06-13-2026

$343.49 USD
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This product is lifetime replacement eligible Lifetime Replacement

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