quaife 5 speed straight cut dog box

Brand new (almost) has only covered approx 200 miles, the kit cost �3200 from quaife plus atb torque biasing diff �550 and was built into a brand new pg1 box.
A fantastic upgrade for a k-engined elise/exige

�2250

Hi, what is the final drive ratio, is it a 3.9 or 4.2? Cheers Tony