headman headers and magnaflow y-pipe - Defender Source
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  #1  
Old March 30th, 2014, 11:43 AM
defender1844
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Amit Likhyani
95 D90 Soft Top Estoril Blue 6.2 LS
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headman headers and magnaflow y-pipe

Getting a 4.6 with ported and polished heads, crower stage 2 cam, top hat style cylinder liners and a hotter coil. I already have the magnaflow y-pipe. I ordered and received the headman headers that bolt up however that may have been premature as apparently they don't even come close to bolting up to the y-pipe either factory or magnaflow. I want the truck to remain legal so I'm leaving the cats on. Do I have options to make these pieces work together or should I try to return the headers and just jet hot the factory manifold and be done with it? My shop says either do that or sell the magnaflow y-pipe and have a muffler shop start over from the headers back. They would have to have cats that would work, a collector of some type and would have to weld in bosses for the o2 sensors.

Anyone have insight for me?

Thanks,
Mit
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  #2  
Old March 30th, 2014, 11:49 AM
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Phillip
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ditch the ypipe, you dont need cats. let that 4.6 roar. I had a shop build me a ypipe sans cats for 500$ including the tail section. Its loud but I like it.
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  #3  
Old March 30th, 2014, 12:26 PM
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I would take the headers, as I getting ready to order a set
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  #4  
Old March 30th, 2014, 12:53 PM
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Rolf
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Y pipe

We made a y pipe for the Headman header application,thought that I might need more had the boys in the shop make a jig for this pipe for mass production stainless or standard.
Bungs for o2 probs in place for 94/95 or 97 with spacers and plugs.I will check this week and see if I can find the jig or it got sh$t canned during a clean up.
Rolf
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  #5  
Old March 30th, 2014, 01:01 PM
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Brett Fritzler
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My D1 has Headers and the Y pipe is custom. I bought the setup used and it came with Magnaflow high flow cats.
I'd keep your headers and make a new Y pipe.
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  #6  
Old March 30th, 2014, 01:21 PM
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Quote:
Originally Posted by Rommel View Post
We made a y pipe for the Headman header application,thought that I might need more had the boys in the shop make a jig for this pipe for mass production stainless or standard.
Bungs for o2 probs in place for 94/95 or 97 with spacers and plugs.I will check this week and see if I can find the jig or it got sh$t canned during a clean up.
Rolf
Definately interested!
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  #7  
Old March 30th, 2014, 02:29 PM
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Keep the headers. I had a 110 with a great set of headers. They were also wrapped to reduce heat which worked like a champ. You'll never regret it.

Clay
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  #8  
Old March 30th, 2014, 02:49 PM
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Amit Likhyani
95 D90 Soft Top Estoril Blue 6.2 LS
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guys, great feedback and conversation. Thanks. To answer some questions: I want the truck to be street legal so it will have to have cats and o2 sensors. That said, I bought both the headers and y-pipe and I've got to take a loss on one of them. Given that the headers seem to be a performance improvement, I'm going to eventually sell the y-pipe. In talking to my mechanic he recommended I take delivery of the truck with the stock manifold and magnaflow y-pipe and then after 1000 miles or so start the process of building a y-pipe setup that works with those headers. I'll do that. If there is a jig, pictures, plans or anything else that will help I'd be interested.
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