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2-1 exhaust kit early bronco 302 5.0 v8
2-1 Exhaust Systems for 289/302/351W/5.0 1966-75 Bronco
Our Price: $319.95

Our very popular dual exhaust kit fits the bill for a great deal of Bronco owners, but a lot of owners with aftermarket transmissions and transfer cases have also been requesting a system that you can install in your driveway or at your home garage using simple hand tools with NO WELDING. Our new 2 into 1 kit does that!

Head and merge pipes are 2.25" then mid pipe and tail pipe are 2.5", exiting behind passenger side rear wheel at 90°

It is designed to work with Drake and JBA 1966-77 Bronco shorty headers on a 289/302/5.0 If you are running a 351W, the headers won't fit without minor modifications, see below. If you have not already purchased headers, you can add them in Hi Temp Black, Stainless or Ceramic coated and they can ride along in the same box to save on shipping. We also have a version for use with stock Bronco manifolds. See #3061

This kit is all bolt on with a hardware kit and detailed instructions which include info on how to properly install the shorty headers we sell. No welding required. Comes with all the necessary hardware, clamps and hangers.

Muffler choices, quietest to loudest:

  • Stainless steel Magnaflow- Nice, resonant mellow deep sound
  • Flowmaster Delta 44- Signature sound of the 40 series without the over powering drone or in-cab resonating
  • Jones Full Boar- Deep more aggressive tone, comparable to a Flowmaster 40 series
  • Cherry Bomb Pro- Deepest most aggressive tone of the 4 choices
Works with:
-289/302/5.0/351W
-2" or more suspension lift (Min 2" lift required)
-0-3" body lift
-Dana 20, Atlas, NP205
-C4, 3 Speed, NP435, AX15, NV3550 (Still testing C6, AOD, 4R70W, ZF 5-speed)

-WILL NOT WORK WITH ANY LONG TUBE HEADERS without SERIOUS MODIFICATION
-WILL NOT WORK WITH JAMES DUFF 4 LINK without SERIOUS MODIFICATION call for details

*Not tested on 1976-77 equipped with catalytic converters.

IMPORTANT INFO ABOUT DRAKE SHORTY HEADERS ON A 351W
  • Shorty headers will make contact with inner passenger fender
  • Shorty header collector flange on some EB's will make contact with the frame and need to be clearanced. NOTE: If you are using aftermarket motor mounts that are taller, you will probably avoid this issue.
Disclaimer: this 2-1 exhaust system is designed to work with the stock transmission crossmember or the advanced adapters crossmember #3654.



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Dual Exhaust 1966-75 Early Classic Bronco Aluminized Cherry Bomb
Customizable Aluminized Dual Exhaust, 1966-75 Bronco
Our Price: $299.95

LONG TUBE HEADERS BACK IN STOCK
After 20 years of selling our dual exhaust kits, we went back to the drawing board on them last year to make them more installer friendly and customizable. We separated the back pipes into 2 sections also allowing for options on the exit angles and easy removal for serious rock crawlers to avoid tearing them up. This kit can be used with our headers or stock Early Bronco manifolds (see optional #3091 for manifold downpipes). It comes with custom bent aluminized 14 gauge 2 1/4” diameter pipes and mufflers of your choice: Turbo, Pro, Vortex or Flowmaster 40 series.

Fits whether you have a 302 or 351W, stock or heavy duty aftermarket motor mounts, stock-3" body lift, our Extended Radius Arms, Torque Tamer Traction Bar, 4" Rear Bump Stops and 23 gallon gas tanks.

If you have a non-standard engine-transmission combination, please call us before you order to verify fitment.

NO WELDING REQUIRED, can be installed in your driveway. Exhaust pipes exit just behind both rear wheels, choose 65° or 90° angle. Modification required for 1976-77's equipped with catalytic converters. Comes with instructions, hangers and mounting hardware. DOES NOT WORK WITH JAMES DUFF 4-LINK

Muffler choices:

Turbo: Offer less restriction and longer use than glass packs as well as better performance and a nice resonant mellow deep sound. 100% mechanically locked aluminized steel. Quietest of all the options.

Cherry Bomb Pro: Deeper more aggressive tone 100% welded aluminized steel with a grey finish. Loudest of all the options. This is what we have on Hobby Horse.

Cherry Bomb Vortex: Utilizes fiberglass and a patented baffle design to absorb both high and low frequency sounds. Has a nice rumble but without the tinny sound of Pro/Flow. Less sound inside the vehicle at speed. Great for rigs that spend a lot of time on the highway. 100% welded, aluminized steel with high temp black finish. Highest flow rate available. Slightly larger than the other choices at 14x4.25x10.25" but we've been running these on Hi Ho Silver without issues for several years. They hang down just a little farther than the Torque Tamer.

Flowmaster 40 Series:
Signature deep more aggressive tone. 100% MIG welded 16 gauge aluminized steel.

Disclaimer: this dual exhaust system is designed to work with the stock transmission crossmember or the advanced adapters crossmember #3654.

Our current long tube headers are not compatible with Stage 8 Header Bolts


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2-1 exhaust kit early bronco 302 5.0 v8
2-1 Exhaust Systems for 289/302/351W/5.0 Stock Manifolds 1966-77 Bronco
Our Price: $319.95

Our very popular dual exhaust kit fits the bill for a great deal of Bronco owners, but a lot of owners with aftermarket transmissions and transfer cases have also been requesting a system that you can install in your driveway or at your home garage using simple hand tools with NO WELDING. Our new 2 into 1 kit does that!

Head and merge pipes are 2.25" then mid pipe and tail pipe are 2.5", exiting behind passenger side rear wheel at 90°

It is designed to work with stock Bronco manifolds.

No welding required. Comes with all the necessary hardware, clamps and hangers.

Muffler choices, quietest to loudest:

  • Stainless steel Magnaflow- nice resonant mellow deep sound
  • Flowmaster Delta 44- signature sound of the 40 series without the over powering drone or in cab resonating
  • Jones Full Boar- deep more aggressive tone, comparable to a Flowmaster 40 series
  • Cherry Bomb Pro- Deepest most aggressive tone of the 4 choices
Works with:
-289/302/5.0/351W
-2" or more suspension lift
-0-3" body lift
-Dana 20, Atlas, NP205
-C4, 3-Speed, NP435, AX15, NV3550 (Still testing C6, AOD, 4R70W, ZF 5-speed)

-WILL NOT WORK WITH ANY LONG TUBE HEADERS without SERIOUS MODIFICATION
-WILL NOT WORK WITH JAMES DUFF 4-LINK without SERIOUS MODIFICATION call for details

-Not tested on 1976-77 equipped with catalytic converters.

Disclaimer: this 2-1 exhaust system is designed to work with the stock transmission crossmember or the advanced adapters crossmember #3654.


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Classic Early Ford Bronco 1966-77 Ceramic Long Tube Headers 289/302/351W V8 Duffy's Original
Ceramic Coated Headers 289/302/351W, 1966-77 Bronco
Our Price: $499.95

ESTIMATED SHIP DATE IS NOVEMBER 15th

A design that has stood the test of time. Made in the USA, our headers are one piece construction (not sleeved) with equal length tubes for maximum horsepower and torque. Designed so the starter can be removed with the headers in place and to clear the steering and clutch linkage. Made of 16 gauge 1 1/2” diameter tubing for smooth flow into the 2 1/2” final diameter collectors, they follow the same route as the stock exhaust system. Utilizes a 3/8” thick flange for strength and to prevent gasket blow out. They fit 289, 302/5.0 and 351W/5.8 conversions. Compatible with C4 and AOD automatics and manual transmissions. C6 transmissions will require modification. Will not work with GT-40P heads. If running an NV3550 or AX15, you will need custom intermediate pipes to clear the new transmission crossmember (not available from Duff's).
The Duffy's Original with the driver side design was updated in 2001 to fit better with our #5350 Radius Arms. Come with hardware, premium gaskets and instructions.* These feature a inside and out metallic ceramic coating that resists temperatures up to 1600° F. They are incredibly rust, chip and abrasion resistant; lower under hood temperature; and have an "polished/aluminum" look that does not blue.

...Now available in Black Cerakote
Our satin black cerakote option has an even higher heat resistance up to 2300° F as well as being more resilient than ceramic coating.

Want to save $50? Consider combining these with a new dual exhaust kit. Click here.

Important Note: These are not compatible with the stage 8 header bolts.


*The regulation of emissions production, noise levels, and safety standards is undertaken by the federal government, each of the fifty state legislatures and by many local municipalities, towns and counties. California Vehicle Code Sections 27156 and 38391 prohibit the advertising, offering for sale, or installation of any device which modifies a vehicle’s emission control system unless exempted. James Duff headers have not received an exemption from these code sections and are not legal for sale or use in California on vehicles originally equipped with catalytic converters. It is illegal, except for vehicles only driven off-road, to remove or otherwise render inoperative any emission control device on regulated motor vehicles. In the other 49 states, it- is the responsibility of the ultimate consumer to check federal and local laws to determine if JDI products are legal for use on their vehicle.

ESTIMATED SHIP DATE IS NOVEMBER 15th


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Shorty Headers 289 302 351W 5.0 Early Bronco Classic Ford
Shorty Headers 289/302/5.0 1966-77 Bronco
Our Price: $239.95

Bolt-on horsepower and torque with these short-tube headers by Drake. These headers are designed to fit 1966-77 Broncos with 289/302/5.0 motors with ample clearance for most modified suspensions. They are engineered to make strong power and torque throughout the RPM range with smooth mandrel-bent 1-1/2" primaries and 2.5" collectors. Manufactured with heavy-duty features like extra-thick 3/8" laser cut flanges to guard against warping and heavy-wall 16 gauge tubing for maximum durability. Includes high quality hardware, premium laminated metal core gaskets and heavy duty ball and socket flanges for a leak proof installation. Includes O2 Ports in Collectors for EFI conversion. For 351W see notes below.

Available in durable high-temp black paint, 304 Stainless Steel or new Ceramic Coated.
NOTE: NEVER USE CERAMIC HEADERS TO BREAK IN AN ENGINE

IMPORTANT INFO ABOUT DRAKE SHORTY HEADERS
  • Will not work on P heads without modification to some of the primary pipes.
  • Will work with our Dual Exhaust Kit #3095, requires adapter pipes #3069

IMPORTANT INFO ABOUT DRAKE SHORTY HEADERS ON A 351W
  • Shorty headers will make contact with inner passenger fender and will require some shaping/bending of the passenger side's two rear primary tubes or inner fender (or let it rub...) ;-)
  • On some Broncos, collector flange will make contact with the frame and need to be clearanced. NOTE: If you are using aftermarket motor mounts that are taller, this may not be an issue.


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2-1 Early Bronco Exhaust FAQ
2-1 Exhaust FAQ

Frequently Asked Questions-

What comes in the kit?
Driver & Passenger Head Pipes, Y Pipe, Mid Pipe, Tail Pipe, Muffler
Long Rubber Hanger, 1 each Long & Short L Brackets, 2-2.25" Exhaust Clamps, 4- 2.5" Exhaust Clamps, 2-2.25" Stainless Band Clamps, Hardware & Grommets, Donut Gaskets for manifolds (#3061 kit)

How do I know which options are best for me?
Click here to watch Monster Mike walk you through the options and accessories
No two Broncos or Bronco owners are alike, so we made this kit customizable to better suit your individual preferences.

What header finish should I choose?
Click here to watch Monster Mike walk you through header finishes
  • Black painted for a tight budget, no heat or rust concerns or if you'll need to customize.
  • Stainless for show quality good looks, no heat concerns or customizing.
  • Ceramic finish or show quality and best heat reduction in engine bay. The most durable hi-temp finish available

What muffler is best for me?
Click here to watch Monster Mike walk you through the muffler choices
  • Jones Full Boar- Classic Flowmaster 40 Series sound for budget pricing
  • Flowmaster Delta Series-Great Flowmaster 40 Series sound but without the drone
  • Cherry Bomb Pro- Agressive Deep Tone for that deep lumpy sound
  • MagnaFlo- Mellow Deep Sound that really wakes up at high RPM's
How long does this take to install?
A weekend is fairly standard for most home mechanics. Please read install instructions to see if you are comfortable with what is required.

Can I do it by myself?
Yes, but having a helper is nice when hanging the tail pipe.

What tools are needed?
Cordless impact drill, 17/64 drill bit, tape measure, silver or white paint marking pen, 3M green tape, 5/16", 3/8",1/2", 9/16", 5/8", 11/16", 17mm, 19mm wrench and socket, hack saw, cut off wheel or vertical band saw, rubber mallet, vice with pipe or soft jaws and two jack stands to hold up muffler & tailpipe during mock up.

My pipes don't fit together, what should I do?
Pipes are a very tight fit so they don't leak. Check for burrs and check pipe ends for damage. Call us if you need help!





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Exhaust Paste
Exhaust Paste
Our Price: $9.95

A special high-temp joint sealing compound that is resistant to corrosive exhaust heat and gas. Fuel injection systems require the elimination of all exhaust leaks for proper operation and this does it! Applies soft so it can be forced into small openings, cracks, joints and 02 Sensor bung welds. Sets like a weld. Direct heat rating of 1000° F and intermittent temperatures to 1500°F more info
James Duff 2 into 1 Exhaust Kit Upgrade for EFI
2 into 1 Exhaust Upgrade Kit
Our Price: $49.95

Looking for a leak free exhaust? Do you have an EFI system that won't run correctly? This is the magic sauce. This upgrade kit is designed specifically for the James Duff 2 into 1 exhaust system #3060 & #3061. If you'd like to buy the paste separately use #3058. Make sure to add premium header gaskets #3050 for absolute best air tight seal in your exhaust system.

  • Must have for bolt on exhaust systems using EFI
  • Specifically offered for James Duff 2 into 1 exhaust systems
  • Purchase premium header gaskets also for the ultimate air tight seal #3050
  • Purchase just the exhaust paste separately #3058
Kit includes 2 2.25" Stainless Band Clamps, 1 2.5" Stainless Band Clamp, 1 Tube of Exhaust Paste.
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