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  1. A5 Performance & Mods
    My car is 2010 A5 2.0tfsi quattro and i have changed these parts: -Highflow race cat -bigger intercooler + aluminium boost hoses -gtx 2967 turbo -cold air intake - high pressure fuel pump -n75 and diverter valve problem is my turbo really spools at 4k. Same problem was with stock turbo and there...
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