spiff Posted October 15, 2013 Share Posted October 15, 2013 Hi, I bought a generic 2inch piping kit off ebay to build my intercooler setup, this was gonna be used with the stock TB and turbo. However AFTER I had bought this an RB25DET turbo came up for sale so cheap that I had to have it. I thought it had a 2" outlet but when I got it it was a 2.5", and I am also putting in a RB throttle body, so thats also 2.5" I think. Can I use the 2" inc piping or will it be beneficial to keep all the the piping the same diameter as the turbo, tb and intercooler inlet/outlet?(2.5") Quote Link to comment Share on other sites More sharing options...
skirkland1980 Posted October 15, 2013 Share Posted October 15, 2013 (edited) Keep the piping the same size or bigger than the turbo outlet. The od of the tb can be bigger than the piping. Edited October 15, 2013 by skirkland1980 Quote Link to comment Share on other sites More sharing options...
spiff Posted October 16, 2013 Author Share Posted October 16, 2013 Ok. Then I'll sell the 2" piping and get myself some 2.5" instead. Quote Link to comment Share on other sites More sharing options...
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