Maxxis are Chinese and they are cheap for a reason. For a relatively high performance car like a +8, I would never fit anything other than a premium brand.
Take a look at some of the comparison tests of Chinese versus premium, particularly in the area of wet grip and wet braking. The difference in stopping distance may be a matter of life or death, literally. Many of the premium brands produce tyres in China but they use global specifications and Euro compounds and are as good as that implies.
Don't do it!
Don. (37 years in tyre manufacturing)