PRP Ignition Coil Kit - BMW N54

This PRP plug-in kit increases spark energy with R35 smart coils while reducing the load on the BMW N54's factory DME, which is prone to internal transistor failure. It uses our big-hitting Hitachi-Astemo R35 GTR smart coils, proven north of 2600hp.

With the OEM Plug & Play option, the kit is a plug-in replacement for the OEM N54 coils, using a DME signal bypass box and OEM-to-R35 coil connector patch leads for a simple installation.

Why smart coils? The factory N54 coils are 'dumb' coils with no built-in igniter, so the DME's internal MOSFET transistors fire them directly. These parts heat up and commonly fail, leading to expensive DME repairs. Our kit converts the DME signal to a low-voltage trigger, putting far less load on the factory circuitry. The conversion takes 1μs, so timing is unaffected – just adjust the DME dwell settings to suit the upgraded coils.

Higher-dwell 'dumb' coil upgrades load the DME even further. Our kit reduces that load while delivering proven better spark performance, and it is trusted by World Time Attack winners and drag record holders.

Key Features

• Billet alloy bracket positions the coils for easy, non-invasive access to all coil plugs
• 6x custom injection-moulded silicone stalks, designed to reach and seat on the spark plug at the correct angle
• OEM plug-and-play option: 6 braided patch leads with our custom injection-moulded connector, plus a bypass box that sits in the DME enclosure
• Universal loom option for standalone aftermarket ECUs, with a braided high-temp Tefzel coil harness
• Genuine Hitachi-Astemo R35 GTR (VR38) ignition coils rated to 2000hp, with a 1-year coil warranty
• Bolt kit included for the 6 ignition coils and billet bracket to head
• Lifetime warranty on all PRP products

Kit Contents

• Billet alloy anodised coil bracket
• 6x silicone spark plug stalks
• 6x genuine Hitachi-Astemo R35 GTR ignition coils (kit options that include coils)
• Bolt kit for the 6 coils and bracket to head
• OEM Plug & Play loom option: 6x braided patch leads + DME signal bypass box
• Universal loom option: braided Tefzel coil harness
• Individual components (bracket, stalks, coils, loom) are also available separately via the kit options

Notes

• The bypass box must be used with the factory DME, or it will burn out the smart coils.
• These coils have different windings to the factory coils, so the correct dwell time must be set.
• On flashed OEM DMEs, MOSFET current draw is often monitored for coil failures. This calibration must be altered, as the much lower load can trigger false misfire errors.
• Quick reference installation: N54 Ignition Coil Kit
• Custom colours (Grey or Cardo Zinc): please let us know your colour in the cart notes at checkout.

• We endeavour to ship all regular and stocked items on same day, next day or within 5 business days of your order being placed
• Custom orders may take longer than regular shipping times but will have information about shipping time on the listing
• We take extra care in packaging your orders to ensure you quality parts arrive safely
• PRP accepts no responsibility for damage or loss to items/products/services from courier or shipping companies once we have received receipt for the third-party service
• All Items purchased from PRP are to be installed by a qualified mechanic at a licensed workshop
• Modifying your vehicle is illegal in some states and territories, the customer acknowledges that it is their responsibility to abide by the law and take the appropriate measures to ensure that their vehicle is roadworthy
• PRP assumes no responsibility for any work carried out, modifications made or parts supplied with regards to road use, as all our products are intended for track use only

Refund requests will be reviewed case by case. Due to numerous factors including automatic & immediate 3rd party supplier purchase orders & merchant fees imposed on us, you might be liable to cover an unavoidable restocking/cancellation fee of ≥ 5%. Please review your purchase and consider contacting us for an ETA before placing an order. If your order is for a gearbox, specific turbocharger, engine build, manifold or something generally not in our extensive inventory, this restocking fee is based on the supplier and not dictated by PRP.

• Effective September 2024, refunds will not be provided for change of mind, incorrect choice or custom ordered products.
• Exchanges or refunds for items and customers that are categorized and applicable under the Australian Consumer law, requires the product/s remain unused and returned in original packaging in saleable condition at your expense to our HQ in Australia. They must return in reasonable time. PRP justifies reasonable to 60 days from date of purchase.
• If items are damaged due to courier or otherwise neglect outside of your or PRP's control, you must notify PRP within 14 days of receipt or the claim is void.
• Platinum Racing Products is not liable for refunds or replacements due to lost or stolen property. We will however attempt every effort to assist in the recovery of your goods.
• We reserve the right to offer you a full or partial refund which can be applied over staged or full payment/s within a 30 day period. 
• You agree that if you select "Authority to Leave" or similar, you waive the liability from the shipper (as per their line agreement) and Platinum Racing Products. As such, we strongly suggest sending your package to an address where someone will be available to sign for the goods and keep them secure.
• Anodizing is done in house with state of the art equipment and we hold stock of most popular colour's. We anodize generally within 48hrs. No refund nor partial will be provided if your request is inside the 48hr period and you require urgent parts however we will always do our best to meet your needs.
• There is no partial or full refunds on shipping where factors are outside of PRP's control. Any shipping estimates are to be considered estimates only.
• Silicone Hose Kits: Please note that our silicone hoses have been designed and tested for the vehicle models mentioned. They may fit other vehicles with the same engine model, however the purchase and installation is at your own risk. Due to extensive model changes throughout the years, we are unable to supply or customize hoses in alternative lengths or sizes beyond what is offered. The kits might not contain every hose you want, but we have made every effort to include the series changes to cover the majority of needs. This means we might include hose/s that don't suit your series as a bonus. We strongly advise that you carefully review all photographs provided before making your purchase. PRP does not offer refunds or partial refunds for hoses that are not included in the kit unless they are explicitly shown in the photographs and missing from your delivery.

Warranty Policy

• Warranty is for a full refund or exchange provided the item was purchased through PRP or one its approved resellers or workshops.
• Warranty is void if you tamper with products or bring them back in a different state to which they were sold to you.
• Warranty does NOT cover costs of shipping to and from in any circumstance.
• All Items/Products/Services purchased from Platinum Racing Products are to be installed by a qualified mechanic at an approved workshop and ALL warranty claims are dependent on proof of appropriate installation and verification of failure.
• Modifying your vehicle is illegal in some states and territories, the customer acknowledges that it is their responsibility to abide by the law and take the appropriate measures to ensure that their vehicle is roadworthy.
• Platinum Racing Products assumes no responsibility for any work carried out, modifications made or parts supplied with regards to road use. All our products are sold and intended for track use only.
• Lifetime warranty refers to certain Platinum Racing Products branded components and generally does not include 3rd party suppliers and their parts. Manufacturer warranty applies to items including but not limited to alternators, turbochargers, electrical sensors, ECUs and associated parts, tyres, etc.
• Due to customer and external components not supplied by PRP, flat drive oil pumps and components are limited to 1 yr warranty with specific cases reviewed before honoring. Spline drive will remain to have lifetime warranty, but again only after specific review.
• All refunds and warranty claims are based on back to base review and parts will need to be returned to HQ for assessment unless otherwise arranged.