Complete Exhaust Recommendations

[Torkman66]

I have the new Blueprint 302 fully dressed engine arriving next week (hopefully) and will install the complete drivetrain with the tub off. My 72 has a C4 and I want to install short headers (ceramic?) and am thinking a single exhaust that exists behind passenger rear tire. I could buy the headers and then trailer the frame to an exhaust shop for something custom, but I would also be interested in a pre-bent kit from the headers back if there are good quality options. I can weld all the joints up once everything is in place. Looking for a mellow muffler sound.

I have seen what Duffs has and that looks like a great option. Would love to hear from others on what you have and where you bought it.

 

[muskrat]

I did the BC Broncos ceramic short headers w the 2 into 1 pre bent stainless exhaust.

Love it. Installed really easy, right on the driveway.

Had an exhaust shop weld up the muffler after I installed it temporarily w a clamp.

It’s a bit loud but last I heard, they were offering options s for a quieter muffler.


Sent from my iPhone using Tapatalk

 

[Insayn]

I had a shop do mine yesterday. 2 1/4” 2:1 to a 2 1/2” with a Magnaflow 20” muffler. Isn’t loud or raspy at all. Cheaper than a kit shipped which is why I opted for the shop.

 

[Broncobowsher]

Have a local shop do it. For starters I see "headers" and will tell you there is no standard location for headers to end at. You can't have a prebent exhaust when there is no idea where the connection will need to be at. Add to the list of other little custom upgrades throughout the truck. To get what you really want, it will need to be custom.

Prebent works best if doing 100% stock. Well known where everything will line up and clear. Or if you are sourcing everything from a single vender. You buy there headers, and there matching exhaust, and it might actually fit if you didn't do anything else to be in the way.

 

[deltabronco]

I do have the Duffs shorty ceramics. Take a little work to fit on the 306 but nothing horrible. Very tight fit in the engine compartment though. I would recommend.

 

[neilvonarb]

I just finished installing the Duff 2 into 1 exhaust kit with the Scott Drake shorty headers (Model C6TZ-9430-CC-SH) and a Magnaflow 20” straight through muffler. I have a stock 302 with C4 and stock cross member. That combination installed pretty easily on my rig with only having to cut off some of the tailpipe that stuck too far past the face of the fender. One thing I ran into is, if you have one of the after market tanks with the strap and candy cane bolts that hold it up, the section of tailpipe will likely hit the edge of the strap. The tailpipe will also land in a place that isn’t directly below your frame rail, not allowing you to use the kits’ hanging hardware for the tailpipe (the kit hardware basically requires that it be installed plumb to work correctly). Also, you can buy the headers and muffler cheaper from someone other than Duffs. I found this out after their site said they were in stock and they weren’t.

 

[Broncobowsher]

There is also the issue of the exhaust arriving without extra bends in it. Something UPS is a bit famous for.

 

[BGBronco]

Apparently, some of the vendor kits, Duffs for sure, require a 1" body lift for their 2in1.

 

[Shimmy]

i have Toms regular headers with Duffs dual exhaust and borla mufflers. zero issues with fitment here but if i could do it over i'd probably go 2-1 to keep it simple and pipe away from the fuel line. i'm also running all stock drivetrain, 302, 3speed, d20. i wasn't so concerned with fitment issues with an off the shelf setup like Duffs. that being said, this exhaust run is pretty simple with no complex bends.

 

[neilvonarb]

Apparently, some of the vendor kits, Duffs for sure, require a 1" body lift for their 2in1.

I don’t have a body lift and it installed on mine. This is what their site says. At least 2” suspension lift required.

 

[Bajabrewer]

I would price out what everyone offers then probably buy a kit like this(I'm Cheap). You said you could weld it up & this way you put the bends/hangers where you want/need them to be.

https://www.ebay.com/itm/3855168143...d=link&campid=5335857059&toolid=20001&mkevt=1


Add a Muffler & you have a pretty easy project measuring, cutting, welding & bolting it together. Or "Y" the pipes together before the muffler & run a single in/out muffler.

https://www.ebay.com/itm/3945926810...d=link&campid=5335857059&toolid=20001&mkevt=1

 

[BGBronco]

Apparently, some of the vendor kits, Duffs for sure, require a 1" body lift for their 2in1.

I apologize for the misinformation. I have stock BL with 1.5 SL. Sorry for the confusion.

 

[Torkman66]

Great info all! I’m going to stop by a local shop to discuss a possible custom install. That way I could get the headers anywhere rather than trying to match headers with a “kit” like Duffs has. I like Duffs set up but their headers that match the kit are on back order.

Another reason custom might be the way to go is that I can trailer the frame/drivetrain ( body off) to the shop and that would make for great access to make a nice custom setup.

I’m calling Duffs on Tuesday to ask about their back order status as well.

 

[67sport]

I would price out what everyone offers then probably buy a kit like this(I'm Cheap). You said you could weld it up & this way you put the bends/hangers where you want/need them to be.

https://www.ebay.com/itm/3855168143...d=link&campid=5335857059&toolid=20001&mkevt=1


Add a Muffler & you have a pretty easy project measuring, cutting, welding & bolting it together. Or "Y" the pipes together before the muffler & run a single in/out muffler.

https://www.ebay.com/itm/3945926810...d=link&campid=5335857059&toolid=20001&mkevt=1

20 years ago I installed a kit from duff's, and was unhappy with how low it hung under the truck. I'm sure the current kits fit differently, as the industry has changed some. That said, I swore I'd never go that route again.
I recently bought a similar kit to the one linked here and a couple of mufflers I liked the sound of. Cut and welded and fit it in,. Ive been very happy with cost and results.

 

[Torkman66]

I found the Hooker Headers 6909 ceramic coated on sale for 172 free shipping. Was thinking about going with shorties but not sure I can pass up this sale. Not a round socket collector though.

https://www.holley.com/products/exhaust/headers_and_exhaust_manifolds/long_tube/parts/6909-1HKR

Thoughts?

 

[neilvonarb]

Great info all! I’m going to stop by a local shop to discuss a possible custom install. That way I could get the headers anywhere rather than trying to match headers with a “kit” like Duffs has. I like Duffs set up but their headers that match the kit are on back order.

Another reason custom might be the way to go is that I can trailer the frame/drivetrain ( body off) to the shop and that would make for great access to make a nice custom setup.

I’m calling Duffs on Tuesday to ask about their back order status as well.

These are their back ordered headers available through Amazon:

Scott Drake Ceramic Silver Shorty Headers Compatible with 1966-1977 Ford Bronco, Model C6TZ-9430-CC-SH

https://www.amazon.com/dp/B08NC5B46J/?tag=classicbroncos-20

 

[Lt1Burb]

I had fitment issues with Toms long tube headers so I powder coated my stock manifolds. I had a shop do 2” to 2-1/4” duals out behind rear tires, they charged 400 for everything.

 

[Shimmy]

I had fitment issues with Toms long tube headers so I powder coated my stock manifolds. I had a shop do 2” to 2-1/4” duals out behind rear tires, they charged 400 for everything.

is this recent? where do you live? did that include mufflers? what type of tubing? $400 is an excellent price

 

[Torkman66]

I purchased the Hooker mid length 6909 headers on sale from Holley. Im going to a few muffler shops tomorrow to get estimates for a 2-1 custom system. I’ll report back on what I find including prices.

 

[DirtDonk]

Great. I’m sure a lot of us are curious what a set up costs at the moment.
Last one I had done cost me $275. If that shows you how long ago it was!