Skip to product information
1 of 1

Mishimoto Thermostatic Oil Cooler Kit (Black) for Subaru Impreza WRX STI (15+) 2

Mishimoto Thermostatic Oil Cooler Kit (Black) for Subaru Impreza WRX STI (15+) 2

SKU: SKU: MMOC-STI-15T

Regular price £552.90 GBP
Regular price £582.00 GBP Sale price £552.90 GBP
5% OFF
Sale OUT OF STOCK
Tax included. Shipping calculated at checkout.

Stock Checked Manually

Mishimoto availability varies by application and must be confirmed manually.

If available from UK stock, orders are usually dispatched within 7 working days. If UK stock is unavailable, the lead time may be up to 12 weeks.

We’ll confirm availability after you order and contact you before proceeding if the extended lead time applies.

Need it urgently? We’ll confirm availability and dispatch times before you order. Check stock
Not sure this fits your car? Use our fitment enquiry form and we’ll check compatibility for you.
Check fitment
  • Genuine Mishimoto parts
  • Established Since 2009
  • UK Based support
Features
  • 20+ °F (16+ °C) temperature drop
  • Minimal pressure loss
  • Direct fit for the 2015+ STI
  • This oil cooler kit retains the use of your stock liquid to liquid oil cooler unit
  • Sleek Silver or Stealth
  • Black cooler options
  • Thermostatic option available
  • Mishimoto Lifetime Warranty

The Subaru STI provides a great balance of power, handling, and reliability. As with any vehicle, controlling fluid temperatures will ensure consistent power and engine longevity.

The Mishimoto Subaru STI Oil Cooler Kit was developed specifically for the 2015 STI and is a great addition to any street or track-driven vehicle. A large Mishimoto 19-row cooler mounts in the front bumper to provide optimal airflow and cooling efficiency. The included direct-fit mounting brackets and preassembled stainless steel lines with -10AN fittings will ensure an easy and hassle-free installation.

This Mishimoto cooler is proven to reduce oil temperatures by 20+ °F (16+ °C) while maintaining minimal pressure loss. For further heat protection, this Mishimoto Subaru Oil Cooler Kit includes thermal reflective wrap for the oil lines, providing substantial heat deflection from the nearby exhaust. The Mishimoto Subaru STI Oil Cooler Kit can be customized to meet your needs with either a Sleek Silver or Stealth Black cooler and your choice of the Mishimoto Oil Sandwich Plate or the Thermostatic Oil Sandwich Plate. As with all our products, this kit includes the Mishimoto Lifetime Warranty.

Please note: Mishimoto fully inspects and cleans all products prior to packaging. However, it is recommended that customers flush the oil cooler with one quart of clean oil prior to installation to remove any debris accumulated during shipping.

Kit Contents

(2) Application-Specific Mounting Brackets
(1) 19-Row Oil Cooler (Silver or Black)
(1) 3.5' Stainless Steel Braided Hose with 150 ° -10AN Fittings
(1) 4' Stainless Steel Braided Hose with 90 ° and 150 ° -10AN Fittings
(1) M20 Sandwich Plate (Thermostatic Available)
(1) M20 Stainless Steel Sandwich Plate Adapter
(2) M20 x -10AN Straight Fittings
(1) Mounting Hardware Set

View full details

What our customers say