I've tried them in two different vehicles, and removed them shortly after.. Both times for rough idle issues??? Don't know why, but they just didn't idle well.. I haven't tried them in the Benz, and I won't waste my time..

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89 300SEL Money Pit

92 Blown Buick Ultra Pimpmobile 220K and adding 1K per week

88 Wagoneer Slightly modified (Not for soccer moms)

04 Kia Sedona with every option... NICE