My tuners comments about this discussion
The reason TQ drops is 2 fold. 1-Boost drops. If you look at the dyno chart, boost and tq follow the same trend. 2-The subaru heads cannot flow for crap over 5500 due to the design of the ports. Evo on the other hand has better flow and with a turbo that can make flat boost to redline. It will hold TQ, but a V8 typically cant rev over 6-6500 where and evo can go to 9k+ and so can subies. Not to mention its HALF the displacement/Motor.
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