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Review on Hayden Automotive 402 Ultra-Cool Tube and Fin Transmission Cooler: Optimal Heat Dissipation for Superior Transmission Performance by Richard Nonya

Revainrating 3 out of 5

Good cooler for small applications

Installed on NC Miata with AT. The gearbox temperature became too high during violent hill climbs (which was monitored by the OBD scanning unit). I bypassed and unplugged the standard add-on cooler setup and used the included hose to extend the lines to get to them. It works great, now the temperature is usually 170, an improvement of 30-40 degrees. The kit included all the hoses and clamps I needed. Attaches directly to the bottom face of the condenser coil using the included plastic wire ties that go through the ribs. No questions!

Pros
  • Handy thing
Cons
  • I have doubts