Ignitions and Electrical Computers, Chips, Modules and Programmers

Dinan

HIGH PERF HEAT EXCHANGER; G2x/G4x

$667.73

SKU: D00G D780-0003

In Stock
In Stock
Ships by Jun 8
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Dinan B4x/B58 heat exchanger improves charge cooling in BMW G2x/G4x and Toyota A9x Supra vehicles. It features a 45mm thick Dinan core (vs. 26.75mm OEM), providing 68% more heat transfer surface area. This design, along with full-size end tanks, significantly increases thermal mass, resulting in up to a nearly 12°C reduction in charge air temperatures.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandDinan
Part NumberD00G D780-0003

Videos

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy