Stainless Steel 4 into 1 Merge Collectors Model:2-1/4" Primary's into 4" Collector Outlet AF4250-450 The kit includes 5 x

The kit includes 5 x neoprene expander sleeves

1994-2000 Subaru WRX STi

No Wastegate Hole

1b COMPLETE WITH BILLET COVER

Each merge collector is cast meaning no welds can potentially crack over time

Stainless Steel 4 into 1 Merge Collectors Model:2-1/4" Primary's into 4" Collector Outlet AF4250-450 The kit includes 5 xAeroflow 4 into 1 merge collectors are made out of T304 stainless steel that is durable enough to stand up to the elements and combine high flow and high velocity to increase and broaden an engines torque curve. The hand porting inside the collector ensures unrestricted, smooth exhaust flow to prevent power loss and excessive backpressure. Inlets are all measured Inside Diameter enabling the tube to easily slip in. Outlets are measured Outside