Hi Folks and Happy 4th of July.
I just purchased a 1991 560SEL that was originally sold in California. My question is, does this model have any additional emissions hardware to meet Cali regulations and if so is there any advantage to removing it regarding driveability or performance?

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1991 M-B 560SEL Arctic White/Grey 99,000 Miles
1987 M-B 300SDL Ivory/Palomino 229,000 Miles (sold but never forgotten)
2006 Volvo XC70 Blue/Beige
1999 Porsche Boxster Arena Red/Savanna Beige
1986 Porsche 928S Goldweiss/Brown