You guys gotta be kidding. I had a beautiful 87 4000 CSQ, low mileage (78,000 km), it was charcoal/black in colour, lowered. Really nice, had it for about two months. The reason, because while doing sharp turns, u-ies, I experienced a shudder, and the squealing of a rear tire. I was told the Quattro system was defective and would need repairs! I'm just a stupid kid with no money, so I sold it. I will now go and sit in sadness. Raj Diocee -84 4000s I5, non turbo :(, no cat, no restrictions, K&N, 2 glass packed mufflers.