Mishimoto 155F (68C) Thermostat – Toyota 2ZZ 1ZZ 2GR 2ZR



Mishimoto’s 155F (68C) thermostat keeps your engine running cooler for better power and more protection from detonation/pinging. This means you can run more timing, run leaner, and run more boost without risking dangerous detonation. If your cooling system is marginal in racing conditions this thermostat will improve cooling especially in lower load conditions, lowering overall operating temperatures. This thermostat significantly lowers your engine’s operating temperature and may cause a higher than normal idle and richer fuel mixture. If you’re running a stock ECU then the TRD 170F thermostat is a much better choice; this thermostat may cause an OBD error for insufficient coolant temperature.

Gasket included.

It fits:

  • Lotus Elise/Exige/2-eleven – All Toyota powered 1.6L, 1.8L, 3.5L
  • Lotus Evora 3.5L all
  • 2000-05 MR2 Spyder – all
  • 2000-05 Toyota Celica GT and GTS – all
  • 1998-17 Toyota Corolla 1.8L all
  • 2003-09 Matrix/Vibe 1.8L all
  • 2008-14 Scion xD
  • 2015+ Scion iM


Additional information

Weight .25 lbs
Dimensions 2 × 2 × 2 in


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