They are slightly better tho because the rotors are bigger, hence better stopping power but all that has already been discussed up top. I just want alittle quicker braking and nicer looking calipers.
i have been told at the dealer that new thickness is approx 25 mm, and replacement size is 23 mm... VW recommends they be done together, but backyard experts & penny pinchers feel that it isn't necessary...... I would never take a chance for the $200 or so that rotors cost it just isn't worth it. if you can't afford $200 for the most critical safety system on your car, perhaps you should take the bus until you can... Very small diameter diferences cause degradation of brake performance, witness when the pads are half worn how low the fluid goes down....that is compensating for the pad wear and ROTOR wear as well......tires & brakes are all that saves your butt in the day-to-day world of insanity out there, don't be foolish.
Contrary to what some people think, the rotors are designed to be replaced when the pads have fully worn down. The tolerance for allowable thickness on our rotors is very small. I don't know the exact number off the top of my head, but IIRC the front rotors on your Jetta are 25mm thick when brand new and the minimum thickness is 23mm. That's not a lot of wiggle room. When the pads are fully gone the rotors will be very close to minimum thickness. You can mic the rotors to test the thickness, but made sure you get past the \"lip\" on the very edge of the rotor or you will get a false reading. Personally, I say don't mess around with brakes. If you only have a few thousand miles on the rotor, than fine - keep it. But if the pads are gone, the rotors are gone too. On a somewhat related note, I just did the brakes on a 2006 Mini for a friend of mine. The tolerance between min and max thickness was only 1.6mm on the front rotors! That's tight.
I upgraded from solid rotors in my '80 rabbit to vented from a scirroco and the braking is fantastic! I seems that I don't have to press the pedal as far and the brakes stop me like a champ. I too have stomped down a bit with my vented rotors and boy do I stop quick now!
The best and most economical upgrade is using the 9.4 inch vented rotors from the '83 & '84 GTI's. With new 9.4 inch vented rotors and the right performance pads, you will have much better braking capacity without having to swap master cylinders and proportional rear valves.
Stopping is sharp and sudden, with a seemingly discordant combo of 13-inch discs up front and 10-inch discs in the rear.
I am happy with the R32 setup so far ( rotors are freaking heavy); but if I was to upgrade it would be either AP or stoptech trophies....
It was brought in by another shop that installed rear brake pads and rotors.
The cause is Sub-Standard, Cheap "Made in China" Rotors.
You know.... I thought I was immune to the brake issue on the Routan until about 3 hours ago. Was on the freeway and had to brake somewhat hard for traffic. And there it was.... very noticeable shake of warped front rotors. 9300 miles on it. I am super light on my brakes. Almost all of my driving is freeway driving. These rotors are clearly crap.
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