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: BorgWarner S410SX / S478 | 1496-988-0000 BIG CAT Turbo Charger $1,999.99 Add to cart Big Boss Caterpillar C15, C16, + Stage 1 Turbo $2,750.00 Add to cart 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 Exhaust Manifolds: CAT C11 Kenworth/Peterbilt Exhaust Manifold $1,600.00 Add to cart Dodge 24 Valve Exhaust Manifold $565.00 Add to cart Detroit Series 60 12.7L & 14.0L Kenworth/Peterbilt Exhaust Manifold $1,600.00 Add to cart Cummins N14 Celect Plus Exhaust Manifold $1,450.00 Add to cart
