The Fuel Mileage Dr. Inc. Shop Our Performance Tuners Our “Secret Sauce” and Best Selling Product! Bully Dog Heavy Duty GT Diesel Fuel Mileage Tuner $1,899.00 Add to cart Bully Dog Heavy Duty WD Fuel Mileage Tuner $599.00 Add to cart Bully Dog Heavy Duty ECM Tuner $999.99 Select options Big Boss Performance Tuner by PDI $2,350.00 Select options Your Official Dealer of: Turbo Chargers: Big Boss Caterpillar C12 Stage 1 Turbo $1,500.00 Add to cart Cummins N14 and ISX Big Boss Stage 1 Turbo $1,500.00 Add to cart Detroit Series 60 Big Boss Stage 1 Turbo $1,150.00 Add to cart Big Boss Caterpillar 3126 | C7 Stage 1 Turbo $2,150.00 Add to cart Exhaust Manifolds: CAT 3406E/C15/C16 Low Mount Exhaust Manifold $1,450.00 Add to cart CAT C12 Exhaust Manifold $1,450.00 – $1,650.00 Select options Cummins ISX 99-03 Non-EGR Exhaust Manifold $1,600.00 Add to cart CAT C15 Acert Low Mount Exhaust Manifold $1,450.00 – $1,650.00 Select options
