I belive the 65s were blue and the 70s were natural.
70mm will only fit the FR manifold, unless you have a custom intake made.
You dont see these too often for this price. I know only 3 in existance now.
513whp on c16; Tuned by Fernando@RacingPartsSolution.com
Part III: Install Handicap Driving Controls
Ma Cah: http://imgur.com/a/TuyYL