Adeeb1395 Posted March 2, 2014 Share Posted March 2, 2014 What is the max diamter for na and min diameter for a turbo exhaust piping?I m running na now.want to do my exhaust.will go turbo lately.but dont want to do the piping again! Would 2.5 inch enough for both turbo and na?If i do 3 inch would i lose back pressure? Quote Link to post Share on other sites
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