KSTech 19mm Phenolic Thermal Intake Spacers WRX / STI Subaru Turbo Models 2002-2017

Add to Wishlist


For 2002+ Subaru turbo 4-cylinder engines - WRX, STI, Legacy GT, and Forester XT. - EJ25 / EJ20


  • Normally used for custom intake manifold applications.
  • New improved material!
  • Insulates 20% better than conventional phenolic spacers.
  • Higher heat resistance.
  • Better strength and mechanical properties.
  • Better chemical resistance
  • No increase in price!
  • Includes 2 phenolic spacers and and pins (4 OEM gaskets are optional but recommended).
  • Note: no longer bolts re included due to varying applications for these spacers.
  • Made in USA from tough military-spec. phenolic composite - not cheap plastic like the others.
  • Phenolic has been used for decades to insulate intake manifolds. Even Ford SVO sells them.
  • 19mm thickness is recommended for custom applications only.
  • Check hood clearance before ordering, especially with stock intake manifolds!
  • Insulates the intake manifold and TGV housing from the heat coming up from the cylinder heads.
  • Reduces the intake manifold runner temperature keeping the charge air cooler and denser for more power.
  • CNC machined to match the head port (not the gasket) for smoothest flow. Ours are the only spacers like this. Allows port matching!
  • These are the thickest, best-insulating spacers available for a Subaru anywhere.

    For those with top-mount intercoolers (TMIC) these thicker spacers will not work. Please consider our 3mm spacers found here (click).


Nobody has reviewed this product yet! Want to be the first one?

Review This Product

You're reviewing: KSTech 19mm Phenolic Thermal Intake Spacers WRX / STI Subaru Turbo Models 2002-2017