A90 Supra / BMW G-Series High-Performance Heat Exchanger w/ Rock Guard

One of the most apparent problems for the 2nd gen B58 Motor is the liquid-cooled charge air cooler system quickly heat soaks with no ability to recover. This would cause the intake air temperatures (IATs) to spike, resulting in the ECU cutting the power output of the vehicle, and eventually putting the car into limp mode. CSF engineers witnessed the overheating issue first-hand as they were in attendance at the Global Time Attack Finals at Buttonwillow Raceway in November 2019. Several new heavily modified Supra racecars could barely go two or three laps in moderate ambient conditions without having the car go into limp mode, forcing drivers to take a cool down lap (or two), with some even coming into the pits to have their front mount heat exchangers sprayed down with cold water.

CSF's B58 high-performance heat exchanger will be a critical component to keeping your Supra/BMW's charge air cool, and out of limp mode. The upgraded heat exchanger is especially important when upgrading turbos and/or running performance tuning software. The original 2nd Gen B58 heat exchanger is a 1-row unit that is 25mm thick. In comparison, CSF has used its industry-exclusive world's largest 2-row core (68mm) with CSF's B-Tube technology. A unique tank design allows the larger CSF core to still fit into the OEM cooling system housing. The CSF improved design, includes billet transmission cooler mounts, and metal rock guard with improved airflow characteristics. CSF is the only company to include a rock guard and incorporate OEM transmission cooler mounting points for a true plug-and-play "drop-in" fit.

Features

• Significantly Reduces Intake Air Temperature (IAT) for Maximum Performance (with Faster Heat Soak Recovery)
• Improves Air Flow to the Rest of the Cooling System for Both Lower Engine Coolant and Engine Oil Temperatures
• 2-Row, 42mm Ultra High Performance Core with CSF's Exclusive B-Tube Technology
• 2026 Update: New "Track-Spec" 5mm Tall Ultra Efficient Fins with a Multi-Louvered Design for Maximum Surface Area Contact and Heat Dissipation
• CNC Machined Mounting Brackets and OEM Style "Quick Connect" Inlet/Outlet
• 100% All Aluminum TIG-Welded Construction
• Includes Rock Guard & Transmission Oil Cooler Mounting Kit (Industry Exclusive)
• "Drop-in" Fit
• 2-Year Limited Warranty
• Smooth Satin Finish
• Tested and Proven by CSF's Global Network of R&D Partners, Including Leading Time Attack Teams, Tuners, and Turbo Kit Manufacturers

Applications

OEM Part Numbers

• BMW: 17 11 8 666 811
• BMW: 17-11-8-666-811
• BMW: 17118666811
• Toyota: 16400 WAA03
• Toyota: 16400-WAA03
• Toyota: 16400WAA03

📦 Regal Autosport Shipping Policy

Shipping Destinations

We proudly ship our products across the UK, Europe, the USA, Australia, South East Asia, and other locations globally.There are no regions we restrict shipping to.

Carriers and Delivery Times

• United Kingdom: Royal Mail for small items; DPD Local for parcels up to 30kg.
  Delivery estimate: 1–2 business days.
  

• International:
  

• Small packages: Royal Mail (postal service)
  

• Small/medium/large parcels: DHL Express.
  Delivery estimate: 2–15 business days, depending on destination.
  

Please note: We do not ship on weekends or UK Bank Holidays. Orders placed after 2 PM will be processed the following business day.

Order Processing

Orders placed before 2 PM are typically processed and dispatched the same day.
Orders placed after 2 PM will be processed on the next business day.

Shipping Costs

Shipping costs are calculated automatically at checkout based on the volumetric weight of your order.
We do not offer free shipping — instead, we focus on keeping product prices as competitive as possible.

Tracking

All orders are shipped via tracked and signed-for services.
Tracking information will be provided and can be accessed via:

• Your Regal Autosport account page in Shopify
  

• The respective courier’s website
  

Customs, Duties, and Taxes

• UK Customers: Prices include UK VAT.
  

• International Customers:
  

• UK VAT will be deducted at checkout.
  

• Customers are responsible for all customs duties, import taxes, and fees applicable in their country.
  

• Delivery times may be delayed by customs clearance — time is not of the essence for deliveries.
  

Lost or Damaged Items

In the rare case of lost shipments:

• If the courier confirms the parcel as lost, we will re-ship your order as quickly as possible.
  

For damaged shipments:

• Customers must assist us in submitting a claim with the courier.
  

• After confirmation, we will replace the item or offer a discount, depending on the situation.
  

We take great care in packaging, but please inspect your order upon arrival and contact us immediately if the item is damaged or missing.

Backorders

Orders containing backordered items will be dispatched once all items are available.
We do not split ship orders. If you require partial delivery, please place separate orders for in-stock and backordered items.

Local Pickup and Delivery

We do not offer local pickup or local delivery for online orders due to security verification policies.
However, customers are welcome to visit our store and pay via chip and PIN.

📦 Regal Autosport Shipping FAQs

Where do you ship to?

We ship across the UK, Europe, the USA, Australia, South East Asia, and worldwide.
 There are no regions we restrict shipping to.

Which carriers do you use?

• UK orders: Royal Mail (small items), DPD Local (parcels up to 30kg)
  
  

• International orders: Royal Mail (small packages) or DHL Express (larger parcels)
  
  

How long will my order take to arrive?

• UK deliveries: Typically 1–2 business days after dispatch.
  

• International deliveries: Usually 2–15 business days, depending on location.
  

Please note: We do not ship on weekends or UK Bank Holidays.

When will my order be dispatched?

Orders placed before 2 PM are usually dispatched the same business day.
 Orders placed after 2 PM are processed on the next working day.

How much does shipping cost?

Shipping costs are calculated at checkout based on the volumetric weight of your items.
 We do not offer free shipping — instead, we keep our product prices as competitive as possible.

Will I receive tracking information?

Yes!
All shipments are tracked and signed for. You’ll receive tracking information by email and can also track your order via:

• Your Regal Autosport account page
  

• The courier’s own website
  

Do I have to pay customs charges or import taxes?

• UK Customers: Prices include UK VAT.
  

• International Customers:
  

• We deduct UK VAT at checkout.
  

• You are responsible for any local customs duties, import taxes, or fees.
  

Delivery times may be affected by customs clearance, and time is not of the essence for international deliveries.

What happens if my order is lost or damaged?

• If your shipment is lost, we will re-ship your order once the courier confirms the loss.
  

• If your order is damaged, we will work with you to file a courier claim and either replace the item or offer a discount based on the situation.
  

Please inspect your delivery upon arrival and contact us immediately if there are any issues.

What if my item is on backorder?

Orders containing backordered items will be held until all items are available.
We do not split ship orders. If you require partial delivery, please place separate orders for in-stock and backordered items.

Can I collect my order in person?

We do not offer local pickup or local delivery for online orders due to security verification.
However, you are welcome to visit our store and pay via chip and PIN if you wish to purchase in person.