Warped Brake Rotors

[3LGODZILA]

im pretty certain my rotors are warped as when i brake fairly hard from over 100kmph the whole car stutters, and when stopping slowly at a set of lights i can feel it braking on, off, on, off. also when i jacked up my car last time i spun one of the wheels & i could hear it scraping as it spun past the pad. (i probably should have checked every wheel)

i remember when i had my rotors on my mazda mx6 machined, i think i payed $100 a corner

is this an excuse to upgrade my rotors to say some nice slotted or drilled ones? and would it make much of a difference just on the street? will upgraded rotors decrease my stopping distance or just keep the brakes cooler?

how much would i be looking at spending and would it be worthwhile?

[boostn32]

what $100 a rotor no way, i charge $12 a rotor, thats all 4 for $48. any good machinest would be able to tell you if they are

able to be machined. if you were near the gold coast would be able to help you out.

[GTR-N1]

If the discs are close to 1mm above minimum thickness, you might as well get new rotors.

I'd recommend slotted rather than drilled; but then it can depend on if you're on the track.