5.0 in. to 4.0 in. Aluminum Downpipe Weld Flange, fits GT47 and PT91 thru PT114 Turbo.
Part #: HYPAL5040WF
Retail Price: $79.99
Manufacturer: Hyperformance Motorsports
Description / Application:
Adapts 5 in. turbo housings to run 4 in. tubing, in aluminum, for huge weight savings