Doug Thorley Tri-Y Ceramic Coated Headers 1988-1992 F250 F350 Class A BB 460 FI

Doug Thorley Tri-Y Ceramic Coated Headers

#THY-214Y-FI1-C

Fits:

1988-92 Ford F250 / F350 / Class A Motorhome
With Big Block 460 V8 Fuel Injected (without air injection)

Application notes: Automatic transmission only / For use with E40D transmission, #1 connector pipe routes OVER transmission cross member

9 - Fits automatic transmissons only (E4OD)
16 - Header comes equipped with oxygen sensor port.
17 - Header comes with connector pipe or y pipe assembly.
18 - Comes equipped with ERG fitting.
22 - For legality under C.A.R.B. regulations the connector/y-pipe assembly must be used on vehicles originally equipped with catalytic converters.
23 - For use on vehicles with Ford E4OD automatic transmissions only.

Header Style: 4:2:1 Tri-Y Headers
Material: Steel
Finish: Silver Ceramic Coated
Weld Up: No
Primary Tube Diameter (in): 1-3/4"
Primary Tube Gauge: 14 Gauge
Collector Attachment: 3-Bolt Flange
Collector Diameter: 2-1/2"
Tuned: No
Flange Thickness: 3/8"
Bolts and/or Studs Included: Yes
Gaskets Included: Yes
Reducers/Adapters Included: No
Y-Pipe (Crossover) Included: Yes
Y-Pipe Inlet Diameter: 2-1/2"
Y-Pipe Outlet Diameter: 3"
Catalytic Converter(s) Included: No
Quantity: Sold as complete kit
CARB E.O. #: D-540-5
Warranty: Limited Lifetime to original purchaser

Header Information: Backed by over 50 years of knowledge and experience, Doug Thorley headers are designed to outflow your stock exhaust manifolds by leaps and bounds. Tri-Y (or 4 into 2 into 1) style headers by design will increase the power of your motor across the widest RPM band possible, while increasing your gas mileage potential. That is the beauty of the design and that is why they are the best street header available. To make these headers last, They built them using industry leading 14-gauge mild steel tubing with 3/8" thick flanges. To top all of that off, all of their headers come beautifully ceramic coated to greatly reduce under-hood temperatures and protect the headers from the environment. All 100% American made, and backed by their lifetime warranty of course!