San-Man
Well-known member
OK, I should finally be getting my '03 Jetta TDI this coming week...What engine mods should I do first? I do plan on chipping it, but that's probably gonna be last on my list...But what to do first? I'm more concerned with mods that will prevent future problems rather than performance increasing mods at this point, mainly because I'm gonna be doing 1300 miles a week with this thing and at that rate, crud, etc, builds up fast...I'll do the performance stuff later as time allows, and even then, I'd be more interested in mods that won't lower my MPG...Thanks in advance...