aFe BladeRunner Exhaust Manifold (46-40032) enhances flow by 50% for 1998.5–2002 Dodge 5.9L Diesel Trucks and prevents cracking with ductile iron strength. Designed to replace the crack-prone factory manifold, this upgraded unit is constructed from durable ductile iron with a thick 0.25-inch wall for maximum reliability and warp resistance. The manifold features matched ports and a merged runner design that significantly reduces exhaust backpressure and improves overall performance. This results in quicker turbo spool-up, better throttle response, and lower exhaust gas temperatures, all contributing to improved drivability and engine efficiency.
Key Features :
Compatible with 1998.5–2002 Dodge Ram 2500 and 3500 5.9L Cummins diesel engines
Made from ductile iron for superior strength and heat resistance
Outflows factory exhaust manifold by up to 50%
Thick wall design reduces warping and eliminates cracking
Includes two ports for EGT probes
Merged runner design improves flow and reduces backpressure
Direct bolt-on replacement with mounting hardware included
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