Guys, what is the average gain in horsepower and torque by going from 1.5RR to 1.6RR on the stock cam? Has anybody dynoed their car after they installed the 1.6RR? My car is pretty much bone stock, and is there a noticeable sotp improvement in power and torque. Does it change the sound of the exhaust any?
Thanks

 

On this message board I've seen a few people who have gained anywhere from 8 - 16 rwhp. You might be able to find some of the threads by searching.