The Mustang Forum for Track & Racing Enthusiasts

Taking your Mustang to an open track/HPDE event for the first time? Do you race competitively? This forum is for you! Log in to remove most ads.

  • Welcome to the Ford Mustang forum built for owners of the Mustang GT350, BOSS 302, GT500, and all other S550, S197, SN95, Fox Body and older Mustangs set up for open track days, road racing, and/or autocross. Join our forum, interact with others, share your build, and help us strengthen this community!

Why buy one brake deflector over another? Vorshlag vs Bamberg/GTP vs Versus or some other?

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Me: 2022 MACH 1 w/HP and Magnaride.
Fitment, cooling, longevity, etc.
What should I know?
Thank you.

I made my own (with just a hand jigsaw and HF metal brake). I tried to extend it out as far as possible, towards the area "inside" of rotor (at least when steering wheel straight), in hopes the air would get pushed out through the rotor vanes.

If I didn't make my own, I probably would have went with Versus. I like the "structure" of them. although I've seen them need trimming (on GT500's, anyway).

20240818_192747.jpg
 
I just designed and 3d printed mine in PC-CF. Several track days on them, no issues. Should I post them on Printables?
awesome. I've been contemplating doing the same for a bunch of similar types of parts since I can get the fitment so much tighter. I tested some PC-CF naca ducts near the headers and they survived, so I am thinking of doing something similar with the brake deflectors and "closing out" the front wheel well.
 
Experience using both Porsche and Vorshlag I would spend your bucks on the ones from the boys in Tejas! The Porsche ones work great on smaller cars and naturally, Porsches, but for your Mustangs ( especially those with the monstrous 15 inch + rotors, get the Vorshlag. The very best option is still ducting and many more dollars but I am very hard on brakes and the Vorshlag unit is big enough and directs enough air to do the job except maybe on a very hot day.
 
I have a weird habit of thinking whichever option I come across first is the best (I'm well aware that's irrational). So for me, that was Vorshlag.
Terry can certainly drive fast and tests/documents all his parts on his own car so there is that.
 
Experience using both Porsche and Vorshlag I would spend your bucks on the ones from the boys in Tejas! The Porsche ones work great on smaller cars and naturally, Porsches, but for your Mustangs ( especially those with the monstrous 15 inch + rotors, get the Vorshlag. The very best option is still ducting and many more dollars but I am very hard on brakes and the Vorshlag unit is big enough and directs enough air to do the job except maybe on a very hot day.
interesting - the Porsche deflectors have quite a bit more surface area than the Mustang-specific ones I've seen from others. Along with the curved nature for better efficiency, they're definitely moving more air. I ran a test where I used my original Vorshlag-like copy on one side and the Porsche one on the other and my brake caliper temp stickers showed the Porsche deflector side to be 30-50 degrees cooler.

But as always with this stuff - YMMV
 
I can add plus 1 to the Porsche deflectors. For the price, (I got them when they were 7 bucks a piece), quality, and function you really can't beat them. @Bill Pemberton I think they run these same ducts on the GT4RS and thats not a small rotor.

Ive been running these deflectors for awhile now and when I took temps with & without the temp was noticeably different. (don't recall what is was but it was a win).
 
Last edited:
If you use the Porsche deflectors, take a look at getting them from FCP Euro. They offer lifetime replacement warranty on parts.
 
I was always curious as to what the drag is like compared to traditional ducting.
I've always been curious if forcing air to only the inside of rotor was the best way to cool it.
I made my own set of deflectors, but is the air getting to the inside of rotor blades, therefore
cooling both sides of rotor?

For that matter, is it the rotor or the caliper, "we" are really trying to cool?
 
Top