The Booklung: A Stronger, Better-Flowing Air-to-Water Intercooler for 2011–2026 6.7s

We designed Booklung around something most intercoolers ignore: the 6.7’s secondary system isn’t “cold” water. It’s hot. So the core is built to be efficient at those temps, not just on a test bench. The result is a bigger, stronger intercooler that flows better and helps the truck stay consistent under load. If your Super Duty is tuned, towing, or just living a hard life, this is one of those upgrades you don’t regret later.

Check it out: https://www.spemotorsport.com/products/spe-2011-2023-6-7-powerstroke-booklung-billet-intercooler

•  Direct drop-in for all 2011-2026 Ford 6.7L Powerstrokes**

•  Designed to outlast and outperform the failure-prone factory intercooler

•  35% increased airflow over the stock 6.7L Powerstroke intercooler

•  Dyno-proven torque gains without other modifications

•  Features thick billet aluminum end tanks — Designed for a stronger, more durable product

•  Utilizes the SPE Booklung bar-and-plate core for efficient cooling and flow

•  Can be installed on a completely stock or modified truck; no tuning required

•  Lower EGTs ranging from 100 to 200°F

• Can be used with a factory cooling system or ice water (for race applications)

•  Machined and tig welded in the USA

•  Lifetime Warranty