aFe Power BladeRunner Exhaust Manifold - Ductile Iron 421992 18 ft Long

18 ft Long

7/16 in ID

V05 20 Degree

Kits include a steel hub with a built-in rotor ring for most popular 8-bolt brake rotors and 5/8-11 x 2" wheel studs

LSx Mongoose Street

aFe Power BladeRunner Exhaust Manifold - Ductile Iron 421992 18 ft LongBolt on instant performance by upgrading your restrictive factory manifold with this BladeRunner ported manifold. Designed to outflow the stock manifold by 12% for improved throttle response, this BladeRunner manifold has both the inlet and the outlet ports machined for a smooth transition and optimal flow path. Constructed from heavy walled, ductile iron to resist warping and cracking, this BladeRunner will outlast OE and factory replacement