What to do first??
I own a 2001 PSD with 60,000 miles, it is getting 12.3 MPG right now, and I want to improve that as much as possible. My question is what do I do first? Well actually secound today I changed the oil
I am leaning towards this order1 4" straight exhaust (no muffler)
2. Air Filter (K&N) /New fule Filter
3. Gauges
4. ???
Thank you in advance


