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I have a 2013 WRX on elite 2500, it’s on soft cut on 2 step. -15 timing at 2-step rpm and 10% fuel. I want it to be more violent with loud bangs and shoot a flame. Any help?
More fuel and more ignition retarding... But it's definitely not good for turbo. I wouldn't recommend doing it at all unless you have got limitless budget...