- Apr 30, 2006
- stl. louis mo.
- 2009 callaway crystal red coupe, 1995 pace car
has any one installed magna sc on a totally stock 2003,z06-405hp,also years 2002 to 2004 i think. total cost w/tune, also will this engine stay healthy with a few times at drags a season. will not punish this car. have read magna will bring hp to about 550 crank and about 475rwhp. does this sound about right. thanks Billy