Full Tilt Cummins ISM Manifold (88215) ISM/M11 '94-'02 *Comes with turbo mounting stud set only. Increase Fuel Mileage .2 -.3 mpg Ceramic coating reduces heat and improves air velocity Lower manifold temps 300*F Lower EGT’s 80-100*F Reduce turbo lag No cracking, leaking or... MSRP: Was: Now: $2,200.00 Add to Cart