hi guys!! does anyone know the specs of the j's racing spl header?? i need to know the lenght,diameter size and any other specs of the header. like the piipes ,collector size etc.. my mechanic said he needs to now the specs of the header to see if it will match my current engine setup.. thanks!!! he wants to know if what the specs are so he could match the gearing with the power band of the engine. and also before we tune the engine... thanks so much guys!!!!

 

50mm primaries, 55mm secondaries, 65mm collector

 

how about the lenght of the pipes???? thanks !!!