high flow cats
Originally Posted by Zquicksilver
HELIX...
If and only if you can figure out a way to support them. ie welding or brackets. I used brackets mounted to the OEM flex brace. They use a 200 cell metal substrate. I've had mine on since May and really like them, along with my other n/a mods.
My other choice would be UR high flow cats or Crawford...
Zquicksilver
If and only if you can figure out a way to support them. ie welding or brackets. I used brackets mounted to the OEM flex brace. They use a 200 cell metal substrate. I've had mine on since May and really like them, along with my other n/a mods.
My other choice would be UR high flow cats or Crawford...
Zquicksilver
If they really needed to be supported, Helix would have incorported a bracket on them.
I've heard from a member (copbait?) either here or g35driver.com that he didn't recommend the helix high flow cats. This is what he said on g35driver.com:
"Well guys and gals, I actually have some bad news to report on these. First, the cats will not be ready any time soon. Apparently Helix is still working on the redesign and there is no word yet as to when they will be ready for shipping.
Secondly, the metal substrate material in one of the cats ended up coming loose, which started rattling under throttle. It sounded pretty bad so I called Gruppe-S and they were very cool about it and offered me a full refund which I gladly accepted. I will go back to the OEM cats until I figure out what to go with next.
So basically, at this time, I would recommend staying away from Helix hi-flows until they sort out their production issues and release the new smaller design. I don't know if I just got unlucky or maybe there was a problem with the first batch. If you are having rattling issues with your exhaust and have these cats, swap them out for OEM and see if the issue goes away."
"Well guys and gals, I actually have some bad news to report on these. First, the cats will not be ready any time soon. Apparently Helix is still working on the redesign and there is no word yet as to when they will be ready for shipping.
Secondly, the metal substrate material in one of the cats ended up coming loose, which started rattling under throttle. It sounded pretty bad so I called Gruppe-S and they were very cool about it and offered me a full refund which I gladly accepted. I will go back to the OEM cats until I figure out what to go with next.
So basically, at this time, I would recommend staying away from Helix hi-flows until they sort out their production issues and release the new smaller design. I don't know if I just got unlucky or maybe there was a problem with the first batch. If you are having rattling issues with your exhaust and have these cats, swap them out for OEM and see if the issue goes away."
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Joined: Feb 2004
Posts: 97
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From: The Big Apple?
I bought the UTR High flow cats.
They are also metal substrate and have the support bracket that you all are talking about. Shoot them an email, info@unlimitedtuning.com
They are also metal substrate and have the support bracket that you all are talking about. Shoot them an email, info@unlimitedtuning.com
Originally Posted by lowrider
Over time the R/Ts break Up inside, and don't flow at all. Crawfords here.
Lou
Lou
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