I bought the obx full system only to find that my 95 has conical flange and wont mate up. I bought a used turbo with the angle flange just for the hot side swap. My exhaust manifold was cracked so I removed it. Is it worth the $200 to upgrade to the R series manifold? Do I bolt the 15g back on with the angle flange? The car has the factory 95 t5r ecu tune. the other half of the turbo was missing the volvo tag so I dont know what model number turbo it is. It appears to be about the same size ports and turbine as the 15g im not sure.