For example: me. If youre worried at 100k than maybe I should start getting worried about my 200k lol. I slapped my turbo on at 190k, still no motor probs with 10psi at 220k(knock on wood). I figure with high mileage you can either rebuild before you boost, or after something fails with boost; haha, might as well do the fun part first.trackslut240 wrote:search my friend, there are some engines here that have twice that with a turbo on..