I got my MBtex seats to look brand new, but it took a lot of elbow grease. I scrubbed them down with soap and water, then I used Macguiers leather conditioner. It really worked super good on the tex. I put about 3 coats.

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2007 Corvette Convertible Torch Red
1996 MBz SL500
2008 Harley Davidson Night Rod Special