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1349 Review
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Review on 🏎️ Mishimoto MMTS-RX7-89 Racing Thermostat: Optimal Performance for Mazda RX-7 1989-1995 by Jose Strong

Revainrating 1 out of 5

Maybe for an LS replacement, but certainly not for a regular RX-7

I understand that you believe the rumors on the internet that the rotors are unreliable and then keep sending GM thermostats. Both thermostats are supplied for GM engines, not 13B-REW engines. Unfortunately it does not fit the 13B-rew engine. The thermostat is too big for the original housing. it's not even the same item as the picture on Mishimoto's website. I was frustrated and berated my build for over a week.

Pros
  • Automotive
Cons
  • Clarity