Figured it's about time I posted up into the 300+ club. I have a FPV GS 315 sedan with the 5.0L S/C V8 and ZF, dead stock it made 396rwhp/ 295rwkw and managed a 12.81@109MPH the day after I picked it up. http://i1112.photobu...owsee/Dyno1.jpg About a month later I sourced a K&N Filter which raised the power up to 408rwhp/ 304rwkw, so spent roughly $125 cracking the 300rwkw mark. http://i1112.photobu...owsee/Dyno2.jpg Then about another month after that I bit the bullet and got the car tuned by Lee at RDP in Redcliffe, raised the boost up to 8psi and made a decent 492rwhp/ 367rwkw with a truckload more torque. http://i1112.photobu...owsee/Dyno3.jpg Car goes really hard now compared to standard, definately the best $1600 I've ever spent on a car. Only area that the GS is now falling behind with is the braking capacity, so will eventually be looking at putting bigger brakes onto the car. Dyno sheets are attached. Cheers Howsee