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i have a 3.1 in a 1990 cavalier, does anyone know where i can get a chip made for the cmputer that would eliminate egr and be able to raise the rev limiter and other options i might need deleted, we are dirt track racing with the cars. also i have another cavalier with a newer 3.2 i believe its out of a 2002 buick centry or somthing like that. would the chip be the same for both cars? also is there any tricks for either engine for more horsepower, i knw cold air intake might help. no exhast mods. thanks also any 5 spd racing parts that would be good for dirt track oval racing. we race at one track you never have to come out of second and some other tracks you do. another reason to make the rev limiter higher. thanks