Upgrade Volvo S40 T4 1.9
hello, can anyone tell me exactly what injectors I should put in the car and what gas pump exactly to gain more power? I already have in my power dowser bsr 3 ", 2'5" bsr exhaust, bsr optiflow filter, and turbo t-19 made by kinugawa, and I think that by assembling all the parts next week, I would have better performance with bigger injectors and bigger pump. What's your advice? Obviously, when you are ready, new map in ECU
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