not even close
the 05 will DESTROY any 04 down 2 valve that is not a pure drag car with tons of mods and lightening
a full bolt on 04 will make around 270-275 at the wheels or just about what a STOCK 05 makes.
and i mean full lengths elbow x pipe cat back underdrives throttle body cold air elbow etc..everything you can do without going into the engine will get your 04 up to abotu what a STOCK 05 makes
ported heads and cams with all of the above on a 04 will put it in the range of a 05 with just a old air intake a cat back and underdrives.
im not trying to hype the 05 its just simple truth you have to go to ported heads and cams if you want 300 rwhp from a 2 valve.
you should compare the 05 to a mach 1 more thena 2 valve for power out put stock for stock they are prety closely matched
the 05 will DESTROY any 04 down 2 valve that is not a pure drag car with tons of mods and lightening
a full bolt on 04 will make around 270-275 at the wheels or just about what a STOCK 05 makes.
and i mean full lengths elbow x pipe cat back underdrives throttle body cold air elbow etc..everything you can do without going into the engine will get your 04 up to abotu what a STOCK 05 makes
ported heads and cams with all of the above on a 04 will put it in the range of a 05 with just a old air intake a cat back and underdrives.
im not trying to hype the 05 its just simple truth you have to go to ported heads and cams if you want 300 rwhp from a 2 valve.
you should compare the 05 to a mach 1 more thena 2 valve for power out put stock for stock they are prety closely matched