Educate me ...
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Congrats! I have a 98 also, v70 awd. Also owned a 89 325is in early 90's with dinan chip. Fun car. As you already know, you can do a lot with the volvo turbos. One of the limitations you face is weight--volvos are heavy. There are stories out there of some real beasts, but then there is that line where you lose daily driveability/dependability--although the t5 will take more abuse than most engines. Good luck!