Depending on what u want the car to do no point haveing a car with 500kws with stock brembos Quote every 1 else service the arse outa it change all the fluids drive it around 4 a few months do another service ull soon find out what needs to be replaced after a couple months. Help the car breath better, altho the stock airbox will handle 300kws+ anymore than that id be going for upgraded air intake ! Zorst yet again depending on how much power u wanna put out determines the size of it 250kws, may as well keep the stocky 300, 2.5 to 3inch, 400 + 4inch its endless ! No point haveing a $2000 zorst when your only running stock boost, keeping in mind do it 1ce pay the price tho. Plan it alll out then Build a the thing from the ground up mine is going a 300awkw GTR first things first brakeing suspention, no point haveing all that power if u cant put it too good use otherwise fast fours will dominate the heavy skilly around corners, and spent all that money on the excess too get the Skille fixed Do it once do it right