3″ K Series Vertical Flow Intercooler K20 K24 For Honda Acura RSX Civic EK EG

3” K-Series Vertical Flow Intercooler – K20 / K24

For Honda / Acura RSX, Civic EK, Civic EG

If you’re boosting a K-series and still running a tiny side-mount or undersized core, that’s optimistic. The 3” Vertical Flow Intercooler for K20/K24 is designed to support serious turbo airflow while keeping intake temps under control.

Built for Honda K20 and Honda K24 swaps and turbo builds, this core is ideal for high-boost RSX and Civic chassis setups.

Because hot air makes less power. Always.

  • Applications: K-Series K20 K24 Engines K Series Acura RSX DC5 with Turbo
  • Custom Made Brackets
  • Key Features: Core Size: 24″ x 7″ x 3.5″ Overall Size: 27″ x 12.5″ x 3.5″ Air to air intercooler core

$399.95

Buy now

SKU: B0D99R92ZF

What Vertical Flow Means

A vertical flow intercooler routes charge air:

  • In one side

  • Through a vertically oriented core

  • Out the opposite side

Benefits include:

  • Cleaner piping routes

  • Improved airflow packaging in tight bays

  • Efficient charge cooling

  • Ideal fitment for K-swapped chassis

Especially useful in compact engine bays like EK and EG Civics.


Applications: K-Series K20 K24 Engines K Series Acura RSX DC5 with Turbo Key Features: Core Size: 24″ x 7″ x 3.5″ Overall Size: 27″ x 12.5″ x 3.5″ Air to air intercooler core High density, high quality core Bar and plate construction 3″ inlet & 3″ outlets Rated for 600HP+

What’s in the box

  • Brackets
  • Intercooler

Key Features

  • 3-inch thick core

  • Aluminum construction

  • High-density internal fin design

  • Designed for turbocharged K-series setups

  • Supports mid-to-high horsepower builds

  • Welded end tanks for durability

Translation: built to handle boost.


Ideal Applications

Compatible with:

  • Acura RSX

  • Honda Civic

  • Honda Civic

  • K-swapped or turbocharged builds

⚠️ Custom piping and mounting may be required depending on setup.


Performance Benefits

  • Reduced intake air temperatures

  • Increased power consistency

  • Lower detonation risk

  • Supports higher boost levels

  • Essential for 400+ HP builds

It won’t add power alone—but it keeps your turbo build alive.


What You’ll Need

  • Proper intercooler piping kit

  • Quality silicone couplers

  • T-bolt clamps

  • Proper tuning after installation

Because airflow changes require calibration.


Final Verdict

The 3” K-Series Vertical Flow Intercooler is a must-have for serious K20 or K24 turbo builds in RSX, EK, or EG chassis. Big core, efficient cooling, and built for real boost.

Because heat soak isn’t part of the build plan.

Specification: 3″ K Series Vertical Flow Intercooler K20 K24 For Honda Acura RSX Civic EK EG

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