got feul injectors only used for 3 months barley broken in 19lbs psi.nice upgrade for serious tuners reddy to retune and may upgrade feul pump.for non srt heads this is proably the last mod to do to this car other than cams or headers but i paid $430 and will let go for half $215 .im swapping in a v8 so these are not the desired size even though they are 8cyl mercedes injectors .trust when i saw the stock injectors i couldnt believe the difference in quality between these parts .the stocks are pinholes these are bullet holes huge difference just make sure you bolt them down well and they help alot with the tune .if you buy these ill throw the maganecor cables almost new in for FREE,why not its the holidays. if interested call 973-803-3101 ask for Robert ill be glad to answer any questions and help with shipping ,bye.