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Air and Fuel› Air and Fuel Cooling Systems and Components

On3 Performance

5" Thick Core Intercooler

$535.00 $500.00 Save $35.00

SKU: 15TM.5ug

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$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The On3 Performance intercooler is a direct bolt-on upgrade designed for the S550 Mustang GT twin turbo kit. This intercooler features a 5" thick core and is engineered to manage intake air temperatures while providing over 50% more airflow due to its increased core size. It is compatible with existing 2015+ Mustang models equipped with the On3 Performance top mount twin kit.
Show original supplier description
The On3 Performance Intercooler Upgrade is a specifically designed component for the S550 Mustang GT platform, intended as a direct bolt-on enhancement for the existing On3 Performance S550 twin turbo kit. This intercooler is crucial for enthusiasts aiming for power levels exceeding 1000 HP, as it plays a vital role in controlling intake air temperatures, a key factor in achieving significant power gains. Featuring a substantial 5" thick core, this intercooler offers a considerable increase in airflow capacity, reportedly flowing over 50% more than previous designs due to its larger overall core dimensions. This improved airflow and temperature management are essential for maintaining performance under demanding conditions. This upgrade is designed as a direct fit for 2015 and newer Mustang models that already have the On3 Performance top mount twin turbo kit installed. The kit includes the intercooler only, assuming the necessary mounting hardware and plumbing from the original turbo kit are in place.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandOn3 Performance
Part Number15TM.5ug
CategoryAir and Fuel
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

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.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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