Long Tube Headers for 05-07 GT
12-04-2006, 11:36 AM
#21
5th Gear Member
Join Date: Mar 2006
Location:
Posts: 2,544
RE: Long Tube Headers for 05-07 GT
I love the Dynatechs. They have a perfect bolt-on fit, they're 100% 304 stainless and they have an especially good collector-to-cat coupling. They use a conical gasket rather thn the traditional flat gasket. This provides a very reliable seal. Their fabrication quality is also top notch.
As for emissions, they passed the Texas emissions test no problems. No check engine lights.
Kooks are also really nice. You can't go wrong with either.
I would avoid the JBAs, they are a poor grade of stainless.
As for emissions, they passed the Texas emissions test no problems. No check engine lights.
Kooks are also really nice. You can't go wrong with either.
I would avoid the JBAs, they are a poor grade of stainless.
12-04-2006, 07:25 PM
#26
5th Gear Member
Join Date: Mar 2006
Location:
Posts: 2,544
RE: Long Tube Headers for 05-07 GT
ORIGINAL: vsop
I have the ARH's installed.. There is not a better header.
The dynatechs have caused an engine to blowup when the cat selfdestructed and blocked the exhaust on a mustang
I have the ARH's installed.. There is not a better header.
The dynatechs have caused an engine to blowup when the cat selfdestructed and blocked the exhaust on a mustang
I belive that the engine blew due to some other reason and the engine blowing destroyed the cat. I have seen engines fail on the dyno. It's not uncommon for a piece of the engine to be ejected from an exhaust port with some serious force. I have seen part of an exhaust valve get shot out of a set of open headers with enough force to penetrate a plywood board. Something like that could easily have been launched down the exhaust port, down the pipe, damaging the cat.
Now, I will admit that nobody knows for certain exactly what happened during this incident. However, having handled numerous sets of headers (for this car and others), I have no doubts about the quality of the Dynatechs. They are top-of-the-line quality, no doubt.
12-04-2006, 10:03 PM
#27
2nd Gear Member
Join Date: Jan 2006
Location: Maryland
Posts: 390
RE: Long Tube Headers for 05-07 GT
Just as a side note my neighbor has JBA's headers and catted X pipe. He put them on drove to the track 2 days later and on the 1st pass blew the cats. I mean the inner honeycomb busted loose and he ended up taking them off and busting them all the way out and put them back on. JBA wouldn't do anything for him and he wasn't about to pay another $400 or so bucs for a new set.
I have to agree with CrazyAl as to the engine stalling or throwing a code or running really really rough. I'm not a mechanic but I know enough to know a blocked cat won't blow an engine but again I'm not a mechanic
I have to agree with CrazyAl as to the engine stalling or throwing a code or running really really rough. I'm not a mechanic but I know enough to know a blocked cat won't blow an engine but again I'm not a mechanic
12-05-2006, 01:45 AM
#28
3rd Gear Member
Join Date: Sep 2006
Location:
Posts: 853
RE: Long Tube Headers for 05-07 GT
Its because on one side was obstructed under high boost. That left the other 4 cyl's to take up the pressure. Which is the side where 2 rods broke. The side with the blocked cat were fine. And that is how a cat will blow your engine. Either way I would not give Dynatech 2 cents for their cats
12-05-2006, 08:20 AM
#29
2nd Gear Member
Join Date: Jan 2006
Location: Maryland
Posts: 390
RE: Long Tube Headers for 05-07 GT
My next comment is not to be taken as you are wrong or anything. I think it was just one of those cases, I mean look at my neighbors, now it didn't blow his engine and he had a supercharger on it. That's the only one I've heard of going bad and same for my neighbor who has JBA's. Both companies I think are very good and it just could have been one faulty part. It happens with just about every thing. I have a 66' mustang and the block was cracked from the factory and I never knew until I stripped it down to redo everything. It's your opinion you you are title to it. I think I'm still going to go with Dynatech headers, but stories like this are very helpfull in trying to find a good product. If there where 20 more stories just like this one then sure I would change my mind.
12-05-2006, 01:07 PM
#30
I ♥ Acer
Join Date: Feb 2005
Location: Texas
Posts: 3,225
RE: Long Tube Headers for 05-07 GT
ORIGINAL: CrazyAl
I have heard this story, and I have seen the pictures, but I do not belive it. I mean, we know the engine blew and we know that the cat was destroyed. That's incontrivertible. But think about it. How can a cat failing destroy an engine??? That makes no sense. Blocking the exhaust can make a car run poorly, or even stall it out. But it can't blow the motor. (remember the ol potato-in-the-tailpipe gag?)
I belive that the engine blew due to some other reason and the engine blowing destroyed the cat. I have seen engines fail on the dyno. It's not uncommon for a piece of the engine to be ejected from an exhaust port with some serious force. I have seen part of an exhaust valve get shot out of a set of open headers with enough force to penetrate a plywood board. Something like that could easily have been launched down the exhaust port, down the pipe, damaging the cat.
Now, I will admit that nobody knows for certain exactly what happened during this incident. However, having handled numerous sets of headers (for this car and others), I have no doubts about the quality of the Dynatechs. They are top-of-the-line quality, no doubt.
I have heard this story, and I have seen the pictures, but I do not belive it. I mean, we know the engine blew and we know that the cat was destroyed. That's incontrivertible. But think about it. How can a cat failing destroy an engine??? That makes no sense. Blocking the exhaust can make a car run poorly, or even stall it out. But it can't blow the motor. (remember the ol potato-in-the-tailpipe gag?)
I belive that the engine blew due to some other reason and the engine blowing destroyed the cat. I have seen engines fail on the dyno. It's not uncommon for a piece of the engine to be ejected from an exhaust port with some serious force. I have seen part of an exhaust valve get shot out of a set of open headers with enough force to penetrate a plywood board. Something like that could easily have been launched down the exhaust port, down the pipe, damaging the cat.
Now, I will admit that nobody knows for certain exactly what happened during this incident. However, having handled numerous sets of headers (for this car and others), I have no doubts about the quality of the Dynatechs. They are top-of-the-line quality, no doubt.