BD Exhaust Manifolds Ford F-150 3.5L Ecoboost 2011-2016 1998-pontiac-firebird-esi4271216 250” USA tubing reinforce the

250” USA tubing reinforce the front frame sway bar mounting area

It features double shear mounts to add optional drive shaft loop P/N 2204

Spanner Wrench- This spanner wrenched is used for adjusting and disassemble of Roto-Joints used in all UMI Performance products

The factory Ford chassis mount features a 16mm hole while using a 14mm bolt

BD Exhaust Manifolds Ford F-150 3.5L Ecoboost 2011-2016 1998-pontiac-firebird-esi4271216 250” USA tubing reinforce theThe 2011 2016 Ford 3. 5L has an inherent design flaw where not all of the OE stud locations are utilized by the OE manufacturer which leads to warped exhaust manifolds, broken exhaust studs and blown manifold gaskets. The cylinder head on Fords 3. 5L Gas Ecoboost has threaded holes for 11 exhaust studs to be used, however the OE manifold only utilizes 8 of those stud locations. BD has designed a manifold that not only utilizes all 11 stud locations,