Vibrant Performance 1.5" x 2" Straight Reducer 2" Long H753C44 but you will need a

but you will need a slightly shorter mounting bolt (about 3/16" shorter)

AN-16 Port

1978-2008 Pontiac Grand Prix

1 in Bump Spring

Vibrant Performance 1.5" x 2" Straight Reducer 2" Long H753C44 but you will need aVibrant's 304 Stainless Steel Reducers and Transitions offer a convenient solution for fabricators looking to transition from one size or configuration to another. Easy to weld, our collection is available in 16 gauge (0. 065") thickness in both Concentric (round) and Eccentric (oval to round) variations. Fabricators can count on material consistency and dimensional accuracy Requires minimal preparation for welding and fabricationVibrant Performance