Spool Stage 1 IFX350 Upgraded DI Injectors +30% [Gen 2 B58]

SKU: SP-INJ-B582
Regular price €1.990,00 incl. VAT

The delivery time for products in stock is 1-3 business days.

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.

Terms for product returns:

  • You must return the ordered products within 14 days of receiving
  • The products must be unused and without damages
  • Commission fee for handling returns is 21,90€
  • For product returns, the customer is in charge of the return costs. Only door to door service (Express)
  • Shipping costs are not refunded

For international orders (outside of Europe) 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.

Return address: QT Parts, Vasarakatu 8B, 37150 Nokia, Finland.

Pre order / made-to-order products

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:

  • Suspension
  • Engine Tuning
  • Engine Parts
  • Exhaust Systems
  • Fueling
  • Turbochargers/superchargers
  • Drivetrain
  • ECE-approved Downpipes

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.

Spool Performance is proud to introduce  our upgraded DI injectors for the Gen2 B58 Platform. The IFX 350 is carefully sized for the B58 Gen2 engine to keep stock-like idle and low load characteristics while allowing 30% more injector flow at high load and high rpm conditions. The injectors have undergone rigorous testing over months on our different test cars and have been perfected before release. It powers the current GEN2 DI-only world record B58 car along with our FX350 upgraded high pressure fuel pumps. 


Flow: 30% over stock DI injectors 

Pressure: Capable of flowing at up to 390 bar pressure


Tune changes are required for running these injectors. Spool Performance will provide full calibration support for the same over all existing tuning platforms for the Gen2 B58


The injectors are covered by our warranty for a period of 1 year from the date of purchase.