280zilla Posted March 17, 2020 Share Posted March 17, 2020 Hey guys I am looking into getting a twin scroll manifold set up on my z. I have a 75 280z with an rb25det. What I need help with is which manifold to go with that will fit and not have clearance issues as I will need two wastegates. On top of that I’m not too sure as far as wastegate size? Since I will be running two wastegats will a 38 mm or 44mm be better due to the split with air flow? Btw I am running a borg Warner sx300 66/74 turbo. Ty Quote Link to comment Share on other sites More sharing options...
Jeff9727 Posted August 5, 2020 Share Posted August 5, 2020 Give the guys over at Sinco Customs a shout. Others will beg to differ, but they're the best. They'll accommodate anything. Quote Link to comment Share on other sites More sharing options...
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