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Next week My project will be ready for exhaust and now wondering what size I may use for the Burb'. I know 3 inch exhaust systems are the norm for a stock 105 horse 4BT but will a 4 inch exhaust improve over all performance and lower EGT's?
My 4BT has the H1C turbo with the small compressor housing so I don't know if that would be better off with a 4" or just leave it at 3"???
My 4BT has the H1C turbo with the small compressor housing so I don't know if that would be better off with a 4" or just leave it at 3"???