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Discussion Starter · #1 ·
our cars come equipped with 180 tstats and the only aftermarket option is the 160 mishimoto tstat (which opens way too soon and triggers CEL to come on). if interested in this thread DIY: 170F Thermostat Mod - Genesis Forum: GenCoupe Hyundai Genesis Forums you can see how to put together a 170 tstat for less than the cost of the mishimoto.

As engine temp raises past 190ish spark timing is retarded to prevent knock. This mod should benefit ppl in warm climates and summertime for others. I should receive the needed parts today and will be tackling the project this week.
 
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