Originally Posted by canadian stig
yeah, especially since it has NO back seats.
You kidding, right? You won't by any means gain 80hp unless by forced induction. It's a small H6 engine, only 3.4 litres. No way a few bolt-ons will get you to 400 hp.
There's a 4.2L cayman out there built by jake raby. I believe final stages of development are almost done.