Superior Ignition Energy – Performance Comparison

QT Parts is a Finnish online store.
Our warehouse is located in Nokia, Finland.
You can collect your order directly from us if needed. Simply select “Pickup” at checkout.
Pay securely with multiple payment methods, including invoice and installment plans through Klarna.
The delivery time for products in stock is 1-5 business days. We ship worldwide.
If the product is not in stock and it is a pre order product, the average delivery time is 5-21 business days. If the product has a longer delivery time than previously announced, we will be in touch. International orders may be subject to VAT, import duties, and customs fees upon arrival in the destination country.
Terms for product returns:
For international orders sales are final and non-refundable. Once an order is placed, it cannot be canceled or returned. By placing an order, you acknowledge and agree to these terms.
If the product you have ordered is a pre order or made-to-order item, it is not subject to the 14-day right of withdrawal or return under consumer protection laws, as the product is manufactured or sourced specifically based on the customer’s individual order.
If you wish to cancel your order before receiving the product, we will refund 50% of the total order amount.
This condition applies to the following product categories:
All of the above products are manufactured or sourced individually based on the customer’s order, and therefore cannot be returned after delivery, unless the product has a manufacturing or material defect.
In the event of such a defect, the standard liability for defects as provided by consumer protection legislation shall apply.
QT Ignition Coils are a more affordable, longer-lasting, and tuning-friendly alternative to OEM ignition coils. No more broken coils and misfire codes.
Higher energy transfer ensures an optimal spark throughout the dwell time, improving ignition efficiency, especially in tuned and high-performance engines.
Ensures ignition functionality even at high boost pressures and rich mixtures, promoting cleaner combustion and better efficiency.
Advanced insulating materials and a heat-stress-reducing coil design prevent overheating and internal short circuits, extending component lifespan.
Designed to withstand continuous stress — the right choice for high-performance and tuned engines that require reliable ignition voltage across the entire load range. (where OEM ignition coils fail)
Operating temperature in continuous use up to 120 °C – performance remains stable even at high temperatures without power degradation. (see comparison to original)
Increased turns and high-quality copper wire improve conductivity and ensure high, consistent ignition voltage even under heavy use.
At less than 1.5 milliseconds, the performance of both coils is still at the same level.
As the duration increases to 2.0 milliseconds, the energy supply of the original coils clearly begins to weaken, but QT coils maintain stable power.
At 3.0 milliseconds, QT coils produce up to approximately 25% more energy – a significant advantage in tuned or high-revving engines.
Even at high temperatures of 140 °C, QT coils maintain a stable energy level of 70 mJ, while original coils suffer a significant power reduction or cease to function entirely.
Price per piece! Choose the correct quantity according to engine type.
Bolt-on fitment:
The following models require a separate adapter: