i LOVE my 4.10's... wouldnt have any other gear... i dd the car with a little track time.... car is a BLAST to drive... but i am N/A... if i end up going fi then i will switch gears.... my mods are : gears....xpipe...circle d stall and steeda cai... the car pulls 1.6 60's ..11.80@118... and i still get mid to high 20's on mileage.