Peterbilt 387 Exhaust & Intake Manifolds

Bully Dog Caterpillar C-13 Ceramic Coated Exhaust Manifold 251-4410 *Please Verify OEM Number Before Purchase *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Boost the performance of your truck!...

Bully Dog Caterpillar C15 ACERT Kenworth Peterbilt Ceramic Coated Exhaust Manifold 231-3462 *Please Verify OEM Number Before Purchase *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Boost the...

Bully Dog Caterpillar 3406E C-15 Kenworth Peterbilt Ceramic Coated Exhaust Manifold 146-9445 *Please Verify OEM Number Before Purchase *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Boost the...

Bully Dog Cummins ISX X15 Ceramic Coated SCR Exhaust Manifold 3687032  *Please Verify OEM Number Before Purchase *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Boost the performance of your...

Bully Dog Cummins ISX Ceramic Coated SCR Exhaust Manifold 3687032 *Please Verify OEM Number Before Purchase *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Boost the performance of your truck!...

Bully Dog Cummins ISX Ceramic Coated Non-EGR Exhaust Manifold 3880199 *Please Verify OEM Number Before Purchase *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Boost the performance of your truck!...

Bully Dog Cummins ISX Ceramic Coated DPF Exhaust Manifold 3683789 *Please Verify OEM Number Before Purchase *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Boost the performance of your truck!...

Bully Dog Cummins ISX Ceramic Coated EGR Exhaust Manifold 3682959 *Please Verify OEM Number Before Purchase *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Boost the performance of your truck!...

Bully Dog Big Rig Cummins ISX Ceramic Coated Non-EGR Exhaust Manifold 3880199 *Please Verify OEM Number Before Purchase *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Boost the performance of your...

Bully Dog Cummins N-14 Ceramic Coated Exhaust Manifold 3078323 *Please Verify OEM Number Before Purchase *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Boost the performance of your truck! Featuring...

Cummins ISX Intake Manifold 870 Optimize Cummins ISX engines (2003-2007) with this high-grade aluminum intake manifold. Increases airflow by 85%, reduces fuel consumption, and ensures easy installation. Intake Manifold Fits Cummins ISX Engines...

Caterpillar C13 Intake Manifold 3091 Boost KCB C13 engines with this intake manifold. Improve fuel efficiency by 0.3 - 0.5 MPG, lower engine temps, and enjoy quicker throttle response. Intake Manifold Fits KCB C13 Engines 0.3 - 0.5 MPG...

Detroit High Mount Exhaust Manifold 23519348 23512986 23511978 *Please Verify Your OEM Number(s) Before Purchasing. Upgrade with this High Mount Exhaust Manifold for Peterbilt and Kenworth 12.7L & 14.0L pre-emission engines. Replaces OEM...

Cummins ISX Exhaust Manifold Kit 4386606 4386579 *Please Verify OEM Number Before Purchase Heavy Duty Exhaust Manifold Kit with Hardware Fits Cummins ISX Engines Direct Aftermarket Replacement For OEM #s: 4386606 4386579 Kit Includes (12)...

Detroit Diesel DD15 Exhaust Manifold 4721420901 *Please Verify OEM Number Before Purchase Heavy Duty Exhaust Manifold Fits Detroit Diesel DD15 Engines Direct Aftermarket Replacement For OEM #: 4721420901 Kit Includes (1) Center EGR Exhaust...

Caterpillar C13 Engine Exhaust Manifold Kit 2504409 2319030 *Please verify your OEM number(s) before purchasing. This high-quality kit is designed to improve exhaust flow, reduce back pressure, and enhance overall engine efficiency. Exhaust Manifold...

Caterpillar 3406E C15 Engine Exhaust Manifold Kit *Please Verify Your OEM Number Before Purchase Our Exhaust Manifold Kit is designed with precision and attention to detail, ensuring your Caterpillar 3406E and C15 engines operate at their best. By...

Caterpillar High Performance Exhaust Manifold Kit *Please Verify OEM Number Before Purchase High Performance Caterpillar Exhaust Manifold Kit Fits Caterpillar 3400 Series And C15 Engines Specifications: (1) High Performance Exhaust...

Caterpillar 3400 Exhaust Manifold Kit *Please Verify OEM Number Before Purchase Upgrade your Caterpillar 3400 Series engine with our Exhaust Manifold Kit, designed for peak performance and durability.  Caterpillar Exhaust...

Caterpillar Exhaust Manifold Kit *Please Verify OEM Number Before Purchase Upgrade your Caterpillar 3400 Series engine with our comprehensive Exhaust Manifold Kit, designed for peak performance and durability.  Caterpillar Exhaust...