lexus is250 Output is 215 PS (158 kW; 212 hp) at 6,400 RPM (260 N·m; 192 ft·lbf) at 3,800 RPM
opposed to
208kw/280 hp @ 6200 rpm
378 Nm @ 2400 rpm
not exactly double, when my system goes on i should pick up heaps more torque.
hm.. ill be really intrested if you pick up heaps more torque
id say youll pick up max 10nm atw with an fully awsome system
it just wont happen mate..
naturally aspriated cars dont make torque unless it's big displacement
for your mates chaser
your mates car is modded
freeing up the exhaust and such would do wonders on a turbo car
he would have done the basic mods
which would be boost intake and exhaust
by getting rid of the factory restictions it'll be fair to say your mates car will be producing more than the factory figures
if u wanna drift u need more torque and power
N/A vs Turbo
his power band would be much agressive than ours
where ours is linear and turbo cars will have a on boost power curve which will rocket up
but being a 1jz it's still have good off boost driveability
for examply my evo
stock 163kw atw
then i added exhaust boost and intake and a tune (reflash)
200kwatw easy as that
a gtr will have around 190kw at the rear wheel (stock) with a healthy motor and turbo
freeing up the turbo's (exhaust intake etc) will get it around 260kw at the rear wheel
now for us Is250's
Exhaust! Headers + CAT + Mid pipe + axle back
Intake! SRI or CAI
thast the most we can do on our cars
from all that id say around 2K for your system
and another 300ish for your intake
youll get max 160kw at the engine
sad but thats the truth N/A is hard to get power out of
theres no replacement for displacement