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HFC......To install or not to install

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Old Jul 19, 2011 | 04:37 AM
  #16  
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Black Betty
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Note that many of the people that are telling you how super easy it is or to DIY are also saying that they dealt with the broken or stripped studs, sensors, and nuts, but once you get past that it's a piece if cake if you have the strength of He-Man and the patience of a saint. They're better mechanics than me because IMO those are the very reasons I said it's not so easy. Keep that in mind when determining if it's a job you want to undertake.

Let us know how smooth it goes for you if you do it.
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Old Jul 19, 2011 | 08:09 AM
  #17  
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pauliewalnutzz
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Originally Posted by Steveo47
i did mine. took two attempts. The first one i broke the top bolt through the engine bay right off (stud and all) and stipped the other bolt. Bought a stripped bolt extractor, got it within an hour. Its very easy with the right tools and if your carful. Be carful with the o2's as they are sensitive. otherwise bring a partner to push on your breaker bar and your good. everyone makes it seem harder than it is. always do that hardest part first (the bolts in the engine bay). the worst that can happen is you break one, and cant get the other. then go to a shop knowing you atleast tried your best!
+1

Originally Posted by Black Betty
Doing it yourself will cost too much. What happens when you get halfway through and encounter a big problem, like damaging an expensive O2 sensor, breaking a stud off in the manifold, rounding off a bolt, etc? You will have downtime trying to fix the screw up. And in the end you'll likely have to pay someone to fix it anyway. Save your time and money and pay a competent shop to do it so that they are on the hook to fix any screw ups, not you. This is one specific thing where I advise owners not to DIY.
+1 Very well said B.B, but i think im going to take a stab at this. Ill let you guys know how it came out in the upcoming weeks!
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Old Jul 19, 2011 | 12:01 PM
  #18  
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The first time around it took me around 6 hours to complete the job. (Almost stripped a bolt from the manifold, had to hammer the socket in a few times before trying to loosen it again).
A few weeks into driving with the Invidia hfc on, I didn't like the sound of the air coming from the bottom of the car leading into the cabin and the raspy sound from the exhaust. So I took it off and replaced my stock ones back on, this time around it took less than 3 hours to complete. So that's the good thing about if you can do it yourself, you always can put it back. I'm sure replacing the stock cats back on is a bit easier because all the nuts and bolts have been un-frozen from the first install.

Kinda ironic is that I'm kindda intimidated to take remove the front bumper, but didn't even hesitated on the hfc install.
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Old Jul 19, 2011 | 12:17 PM
  #19  
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From: Displaced New Yorker
breaking stuff and screwing up is part of the learning process
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Old Jul 20, 2011 | 04:25 PM
  #20  
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I say just take it to a shop. Plus I heard the bolts are hard to take off... but mine came off easy.
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Old Jul 20, 2011 | 04:34 PM
  #21  
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Originally Posted by Earlblaize
I say just take it to a shop. Plus I heard the bolts are hard to take off... but mine came off easy.
How many miles did you have on your car when you took them off??
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Old Jul 20, 2011 | 05:41 PM
  #22  
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Originally Posted by pauliewalnutzz
How many miles did you have on your car when you took them off??
8k miles.. so easy.
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Old Jul 20, 2011 | 05:57 PM
  #23  
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Originally Posted by Earlblaize
8k miles.. so easy.
Hmm i got 12k on mine so hopefully it will be easy.
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Old Jul 21, 2011 | 12:45 AM
  #24  
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Originally Posted by ShyAznB8oi
When I installed my test pipes.. I believe I broke 2 bolts off each of the cats.. After that, it's piece of cake.. It's not that hard, just gotta be STRONG AF
I can bench 405 easy easy to take those bolts off.
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