Helix HFC's
10-04-2005, 09:31 AM
#1
New Member
Thread Starter
Helix HFC's
Hey whats up guys. As you can tell from my sig I was gonna get test pipes but I now decided to get the helix HFC's. For those of you that have them on their Z, do u guys think it's better than the crawford's. I know the old crawford would blow a gasket and would cause a CEL to go on. Do the helix ones have any problems like that. I don't it to throw a CEL and my car is an 04.5. Keep in my mind I plan on keeping her NA so are they good for NA applications? Thanx guys.
10-04-2005, 12:02 PM
#2
I like mine... $450 shipped for high polished SS cats with 200 cell metal substrates.
The only downside was no way to attach them. I created a bracket along with U-bolt that secured the cats to the OEM flex brace. No problem really...
Crawford are decent as are UR, imo.
Zquicksilver
The only downside was no way to attach them. I created a bracket along with U-bolt that secured the cats to the OEM flex brace. No problem really...
Crawford are decent as are UR, imo.
Zquicksilver
Last edited by Zquicksilver; 10-04-2005 at 12:04 PM.
10-04-2005, 02:35 PM
#4
Originally Posted by Nismo 350z
Did u get a CEL?
Originally Posted by Zquicksilver
The only downside was no way to attach them. I created a bracket along with U-bolt that secured the cats to the OEM flex brace. No problem really...
Last edited by Zivman; 10-04-2005 at 02:40 PM.
10-04-2005, 02:58 PM
#6
Nismo... the answer is no. Refer to Zivmans explaination.
Zivman,
Maybe so... but I thought I would play it safe. I really don't feel like messing with cracked or hairline cracked headers because of unessasary stress. I'm not a 100% sure if the engineers placed those brackets on there for safety precautions yrs down the road when everything begins to rust and fall apart or to greatly reduce stress on the headers due to the weight of the stock cats??? Without cat brackets, the weight of the headers, cats and Y-pipe are all suspended between the motor and B-pipe bracket.
It's quite a bit of stuff in my opinion. The way I look at it, it doesn't hurt to have some kind of support mid-way.
Zquicksilver
Zivman,
Maybe so... but I thought I would play it safe. I really don't feel like messing with cracked or hairline cracked headers because of unessasary stress. I'm not a 100% sure if the engineers placed those brackets on there for safety precautions yrs down the road when everything begins to rust and fall apart or to greatly reduce stress on the headers due to the weight of the stock cats??? Without cat brackets, the weight of the headers, cats and Y-pipe are all suspended between the motor and B-pipe bracket.
It's quite a bit of stuff in my opinion. The way I look at it, it doesn't hurt to have some kind of support mid-way.
Zquicksilver
10-04-2005, 03:16 PM
#7
Originally Posted by Zquicksilver
Nismo... the answer is no. Refer to Zivmans explaination.
Zivman,
Maybe so... but I thought I would play it safe. I really don't feel like messing with cracked or hairline cracked headers because of unessasary stress. I'm not a 100% sure if the engineers placed those brackets on there for safety precautions yrs down the road when everything begins to rust and fall apart or to greatly reduce stress on the headers due to the weight of the stock cats??? Without cat brackets, the weight of the headers, cats and Y-pipe are all suspended between the motor and B-pipe bracket.
It's quite a bit of stuff in my opinion. The way I look at it, it doesn't hurt to have some kind of support mid-way.
Zquicksilver
Zivman,
Maybe so... but I thought I would play it safe. I really don't feel like messing with cracked or hairline cracked headers because of unessasary stress. I'm not a 100% sure if the engineers placed those brackets on there for safety precautions yrs down the road when everything begins to rust and fall apart or to greatly reduce stress on the headers due to the weight of the stock cats??? Without cat brackets, the weight of the headers, cats and Y-pipe are all suspended between the motor and B-pipe bracket.
It's quite a bit of stuff in my opinion. The way I look at it, it doesn't hurt to have some kind of support mid-way.
Zquicksilver
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