I have one of these for iver a year now. Its a pretty phenomenal package. No weight is gained over stock. Weight balance is shifted forward a percent or two. Ive had noticed no issues with anything.
All in im at about 23k. That's including chassis, all swap items, wheels, tires and double adjustable Penske dampers. The car is a very solid tt3 contender or just a great fun hpde machine.
If you ever visit nola Motorsports park you have probably seen the silver rx8 zipping around emitting the wrong exhaust note. Should be at barber in late april and cota in june/july if anyone wants to check it out.