AFE BladeRunner Exhaust Manifold & Up-Pipe Kit 01-04 GM 6.6L Duramax LB7 RC-19002 If you had a CP4

If you had a CP4 failure

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Fitment Note: Will not fit early 2011 trucks with 8-bolt converter - will have to update to 6-bolt converter

You can never have enough mounting discs

AFE BladeRunner Exhaust Manifold & Up-Pipe Kit 01-04 GM 6.6L Duramax LB7 RC-19002 If you had a CP4Eliminate exhaust restriction in your LB7 Duramax with the AFE BladeRunner Exhaust Manifold & Up Pipe kit. This kit from AFE outflows the factory exhaust manifolds by 6% by eliminating the factory pinch point of the driver side manifold. The machined ports match the factory gasket openings for maximum flow. Each manifold features an EGT probe port for easy installation of gauges or testing equipment. The up pipes feature a 2" mandrel bent 304