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Help! Noises after 4.11 installation!

I like them quite a lot. It's an excellent ratio for the street or drags. I have heard comments that this ratio is too much for autocross, and I agree... on street tires, it gives the car too much torque in the turns, and you have to really use conservative throttle control to keep from pitching the car around into a spin. Hard to be smooth... tends to hurt times.

But overall, they're just great. It makes the car a rocket in a straight line. And the freeway revs are dandy. They actually quiet down the exhaust noise on the freeway because they pull the revs away from that 1500rpm resonance peak into a typically quieter range near 2000rpm.

- Skant
 

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