`my car has 288 k on it and its an 87 300 sdl and i noticed there was a cat converter on the exhaust under the car, i figured since the car had so many miles on it and i dont see y it would be there in the first place i am going to remove it and replace it with a straight pipe, do u think my turbo will spool up faster? i was also wondering if there is anything i can do for basicly free to make my car run better or get an extra psi or 2 out of the turbo or get it to spool up faster

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1985 mercedes benz 300D turbo diesel
1998 VW GTI VR6
1996 VW GTI 2.0
1999 saab 9-3 turbo
1987 300sdl (sold)