Detroit 6449 Exhaust Manifold- EGR

• OEM# 23536449
• Replaces OEM# 23533949, 23533862, and 23533821
• Series 60 14.0L with emisssion trucks (EGR)

Increases fuel Mileage by .2-.3 MPG, has ceramic coating to reduce heat absorption and improves air velocity, lowers EGT's 80-100 F and manifold temps 300 F, less turbo lag and offers a 3 year warranty on any cracks or warping.