if you rebuild it before it goes im sure your builder will love you more.
but rebuild it, go large street port. S5 N/A rotors or rx8s. most importantly get a RB road race header and a aluminum flywheel. OH! and go standalone ecu
the aluminum flywheel is the most amazing thing on a N/A rotary
we have a stock atkins rebuild s4 na 13b on a megasquirt, with the road race header (its a road race rx3) aluminum flywheel and the dyno sheet on the motor is 150hp at 7k to the wheels on a dyno dynamics




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