TRUCK/SUV
JEEP
TOWING
WHEELS
TIRES
PROMOS
☰
MENU
MY GARAGE
+ Add Vehicle
813-769-2451
Monday - Friday:
9:00am - 5:00pm EST
813-769-2451
HELP
My Account
Shipping
Tracking
Refunds/Returns
Warranty
Site Policy
About Us
Contact Us
CART
View Cart
Checkout
SEARCH
testLogin
Existing Account:
For returning customers, please enter your email and password to log in to your account.
Forgot Password?
Logging-in please wait...
Select Vehicle:
Note: Due to the number of combinations, this feature will not apply to wheel and tire fitments.
Optional:
Extended:
×
Search 4WheelOnline
Truck Accessories
Truck Exhaust
Headers & Exhaust Manifolds
4-star
Change Vehicle
Headers & Exhaust Manifolds
Exhaust Headers & Exhaust Manifolds
Exhaust Headers & Exhaust Manifolds are on Sale!
Price
-
$300-$400
Brand
-
Doug Thorley Headers
Ratings
-
4 and Up
1 to 1 of 1 Results
SHOW:
24
48
96
SORT BY:
Recommended
Best Ratings
Price Low to High
Price High to Low
Doug Thorley Tri-Y Headers
(1)
FROM:
$384.82
Trucks / SUV
Exterior Accessories
Exterior Accessories
Shop All »
Automotive Shop Equipment
Air Compressors
Locks & Security
Multiple Use Tools
Shop Storage & Tool Box
Shop More »
Exterior Styling
Air Dams
Billet Grilles
Bumper Covers
Pocket Fenders
Roll Pans
SUV Spoilers
Shop More »
Mud Flaps
Go Industries
Owens Mud Flaps
Plasticolor Mud Flaps
Putco
RBP Rolling Big Power
Rock Tamers Dually Mud Flaps
Auto Emblem
Shop More »
Grille Inserts
Go Industries
Good Hood
Kelderman
Putco
RBP
Rigid Industries
Smittybilt
T-Rex
Shop More »
Interior Accessories
Interior Accessories
Shop All »
Floor Protection
Floor Mats & Liners
Door Sill Protectors
Jeep Floor Boards
Shop More »
Steering Wheels
Security System
Installation Kits
Horn Buttons
Shop More »
Automotive Gauges
Gauge Faces
Exotic Gauges
Gauge Kits
Shop More »
Interior Trim
Dinan
Putco
Smittybilt
Shop More »
Bumpers, Grille Guards & Bull Bars
Bumpers, Grille Guards & Bull Bars
Shop All »
Bumpers
Addictive Desert Designs
ARB
Fab Fours
Go Rhino
N-FAB
Smittybilt
Tough Country
Westin
Shop More »
Grille Guards
Aries Automotive
Factory Outlet
Go Industries
Go Rhino
Onki
Tough Country
Warn
Westin Automotive
Shop More »
Bull Bars
ARB
Aries
Factory Outlet
Go Industries
Go Rhino
Smittybilt
Westin
Shop More »
Bug Shields & Visors
Bug Shields & Visors
Spoilers & Diffusers
Akrapovic
Good Hood
Vorsteiner
Shop More »
Hood Shields & Bug Deflectors
AVS Auto Ventshade
Lund Truck Accessories
Putco
Stampede Truck Accessories
Westin Automotive
Shop More »
Vent Visors
AVS Auto Ventshade
Factory Outlet
Lund Truck Accessories
Premium Accessories
Putco
Stampede Truck Accessories
Westin Automotive
Shop More »
Cargo Management
Cargo Management
Shop All »
Bed Cargo Management
Bed Slide
SlideZilla
BedXtender
Lund
Shop More »
Roof Racks
ARB
Lund
ProRac
Smittybilt
Shop More »
Cargo Carriers
Lund
Smittybilt
Surco
Warrior Products
Shop More »
Drivetrain, Differentials & Brakes
Drivetrain, Differentials & Brakes
Axle Components
Axle Shafts
Differential Covers
Differentials
Rings & Pinions
Install & Overhaul Kits
Locking Hubs
Shop More »
Brakes
Banks Power
Crown Automotive
Baer
SSBC
Shop More »
Fender Flares
Fender Flares
Shop All »
Bolt Style Fender Flares
Bushwacker Bolt Style
Prestige RX Rivet
G2 Pocket-N-Bolt
Shop More »
OEM Fender Flares
Prestige SX OEM
Premium OEM
G2 OEM
Shop More »
Wide Style Fender Flares
Bushwacker Extend-a-Fender
TruEdge Extendz - Painted
Shop More »
Lighted Fender Flares
Premium Textured Pocket-n-Bolt
Premium Smooth Pocket-n-Bolt
Premium Textured Round
Premium Smooth Round
Shop More »
Street Style Fender Flares
G2 Street
TruEdge Street
Shop More »
Brands
Aries Automotive
Bushwacker
G2
Poison Spyder
Prestige
Rampage
Smittybilt
Superlift
TrueEdge
Warn
Headache Racks
Headache Racks
Shop All »
Cab Racks
Addictive Desert Designs
BackRack
Fab Fours
Go Industries
Shop More »
Lighted Headache Racks
BackRack
B&W Hitches
Go Industries
Shop More »
Louvered Headache Racks
Aries Automotive
BackRack
B&W Hitches
Go Industries
Premium Accessories
Westin Automotive
Shop More »
Mesh Headache Racks
BackRack
Putco
Shop More »
Lighting & LEDs
Lighting, LEDs & Accessories
Shop All »
Headlights
KC HiLiTes
Oracle
Delta Lights
Recon Lights
Rigid industries
Shop More »
Electrical Components
Controllers / Remotes / Dimmers
Relays
Shop More »
Light Bars
KC HiLiTes
PIAA Lights
Rigid Industries
Shop More »
Emergency & Work Lights
JW Speaker
Truck-Lite
KC HiLites
Westin
Shop More »
Interior Lights
Delta
Recon
Truck-Lite
Shop More »
Truck Bed Lights
Access
Recon
Shop More »
Nerf Bars & Running Boards
Nerf Bars & Running Boards
Shop All »
Power Running Boards
AMP Research
Bestop Powerboard NX
Bestop Powerboard
Shop More »
Running Boards
Premium
Romik
Westin
Shop More »
Side Steps
AMP Research
Go Rhino
Shop More »
Hitch Steps
Go Rhino
Lund
Romik
Shop More »
Nerf Bars
Round Nerf Bars
Oval Nerf Bars
Wheel-2-Wheel Nerf Bars
Running Boards
Powered Running Boards
Step Nerf Bars
Truck Steps
Hitch Steps
Shop More »
Performance & Diesel
Performance & Diesel Parts
Air Intakes & Filters
AFE Stage 1
AFE Stage 2
Volant
Takeda
Shop More »
Batteries
Chargers & Tenders
Jump Starters
Battery / Charger Components
Performance Exhausts
Dynomax
MagnaFlow
RBP
MBRP
Borla
Gibson
Flowmaster
Shop More »
Diesel Exhaust
Banks Power
MBRP
MagnaFlow
Performance Electronics
Diablosport
Hypertech
Edge
Jet
Superchips
AFE Scorcher
Shop More »
Diesel Performance
Airdog
Banks Power Tuners
Banks Power Exhaust
Magnaflow
FASS
MBRP
Shop More »
Boosters
Nitrous Oxide Systems
Turbos
Suspensions & Shocks
Suspensions & Shocks
Suspension Lift Kits
Pro Comp
Fabtech
Rancho
Skyjacker
Tuff Country
Shop More »
Lowering Kits
Ground Force
Traxda
Shop More »
Leveling Kits
Front Leveling
Rear Leveling
Lift Blocks & U-Bolts
Shop More »
Body Lift Kits
Daystar
JKS Manufacturing
Skyjacker
Warrior Products
Shop More »
Truck Shocks
Bilstein
Daystar
Fabtech
FOX Shocks
JKS Manufacturing
King Shocks
Pro Comp
Rancho
ReadyLift
Rock Krawler
Rubicon Express
Skyjacker
Superlift
Tuff Country
Shop More Brands »
Tonneau Covers
Tonneau Covers
Shop All »
Folding Tonneau Covers
Extang Trifecta
UnderCover Flex
Premium
Tonno Pro
Shop More »
Retractable Tonneau Covers
Roll-N-Lock
Retrax
Truck Covers USA
Shop More »
Hard Tonneau Covers
Premium
Tonno Pro
Torza Hard Hat
Undercover Flex
Shop More »
Heavy Duty Tonneau Covers
Diamondback
Retrax
Roll-N-Lock
Shop More »
Roll Up Tonneau Covers
Premium
Tonno Pro
Bestop EZ
Shop More »
Brands
Extang
Undercover
BAKFlip
Access
Lund
Roll N Lock
TruXedo
TonnoPro
Truck Bed & Accessories
Truck Bed & Accessories
Shop All »
Bed Rails
Stake Pocket Bed Rails
Universal Bed Rails
Black Bed Rails
Chrome Bed Rails
Stainless Steel Bed Rails
Shop More »
Tailgates & Accessories
5th Wheel Tailgates
Tailgate Locks
Shop More »
Bed Rail Caps
Bushwacker
Lund
Putco
Rampage
Westin
Shop More »
Bed Management
UnderCover Swing Case
Roll N Lock Cargo Manager
Shop More »
Bed Mats & Liners
Al's Liner
BedRug Bed Mats
BedRug Bed Liner
Access Bed Mats
Shop More »
Truck Bed Super Top
Truck Utility Racks
BAKFlip
Fab Fours
Fabtech
Go Rhino
Smittybilt Contractor
Smittybilt Defender
TracRac
Shop More »
Wheels & Tires
Wheels & Tires
Wheel and Tire Packages
Check Out Our NEW Easy-to-Use Wheel and Tire Package Configurator.
Get Free Mounting, Free Balancing and a Free Install Kit - All with Free Shipping!
Try It Now! »
All Wheels
Jeep Wheels
Car Wheels
SUV Wheels
Truck Wheels
Dually Wheels
Trailer Wheels
Shop More »
Truck Tires
Dick Cepek
Falken
Mickey Thompson
Nitto
Super Swamper
Toyo
Shop More »
Winches, Recovery & Plows
Winches, Recovery & Plows
Shop All »
Winches
8,000lb Self Recovery Winches
9,000lb to 9,500lb Self Recovery Winches
Heavy Duty Winches (10,000+ lbs.)
Electric AC Winches
Utility & Trailer Winches
ATV Winches
Shop More »
Winch Accessories
Air Compressors
Hi-Lift Jacks
RotopaX
Monster Hooks
Winch Remote Controls
Winch Fairleads
Winch Snatch Blocks
Winch Accessory Kits
Shop More »
Winch Lines, Cables, Ropes
Bubba Ropes
Factor 55
Shock Straps
Mile Marker Synthetic
Mile Marker Replacement
Smittybilt Synthetic
Shop More »
Winch Brands
DV8 Off-Road
Factor 55
Fishbone Offroad
Mile Marker
Monster Hooks
N-Fab
Poison Spyder
Premium Accessories
Recon
Rubicon Express
ShockStrap
Skyjacker
Smittybilt
Superwinch
Warn
Warrior Products
Westin
Shop More »
Other Sections
Truck and SUV
Towing
Jeep
Wheels
Tires
Promos
Account Information
Promos & Specials
Truck Articles & Reviews
Privacy Policy
My Account
Returns
Warranty Info
Tracking Info
Price Quotes / Match