i have a 03 330xi with 93000 miles wondering if that is to many to start modifying it. and unfortunately its a auto so is it even worth modifying
BMW E46 3 series are pretty much max'd out as far as HP and quickness to start. To modify it will cost a lot of money with no real big gains. Also you have an XI which is AWD, so definitely not. Get a newer Mustang w/a manual trans and modify to your hearts content.
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