I wanted to see what brands were recommended for seat repair and then changing the seat color from tan to black.

Will first need a kit to fix a very worn area that will require a patch of some sort.

And then a cleaner to prepare the leather. Last a Colorant, to change the seats to black. Was considering this brand for the 3rd step:

http://www.colorplus.com/products-pa...her-and-vinyl/

Any brands or suggestions appreciated.

 

I’m guessing the worn area is the driver’s side bolster? It can be patched from underneath and then filled to make it even and then dyed. Colorplus is a good, so is Leatherique. Leatherique has a page on how to prep and stuff here: http://www.leatherique.com/do_it_you...e_leather.html

But because you’re changing color on all seats (front and back), I’d invest in new leather and be done with it (Paul Champagne or Rob Budd). If you want to save $$, you could go with vinyl instead—this guy on e-bay has pretty incredible prices:

http://www.ebay.com/itm/NEW-Porsche-...item2a2415a1df

For ~$500 you could have front and back...

 

Directionless, your avatar looks tired.

 

Maybe keep your eyes open for someone parting out a black interior. Your car will look great when it's done. Mechanically it's VERY strong.

 

I am going to have plenty of spare black interior in nice shape. See my 78 & 79 parts post

 

You might try a search across the whole Porsche forum instead of just the 928 forum.
I did that once and found a wealth of practical solutions to leather repair and coloring.
Put the search terms or phrases in quotation marks, that seems to help the results.

 

Here's a good link:

https://rennlist.com/forums/showthre...errerid=100405

Searching rennlist in general as suggested above is an excellent idea.

 

Whatever you decide, avoid like the plague " Magic Mender". Their product is absolutely crap.

 

Not leather, but way cooler:

http://www.werk924.com/index.php?opt...d=16&Itemid=26