Ok so removing the stock cat...

TongMan

How were you guys able to get to the bolt on the driver side? There is a bar obstructing the bolt so my wrench can not lock onto the bolt?

jhh343

I used a universal joint on that bolt at the end of all the extensions...had some help from under the car to get it on the bolt head right...good luck

TongMan

How did you avoid that bar?

SPOHN

It should be a straight shot. My extensions laid up against the steering rod but not to where it bounded it in any way. It's ok if there's a little pressure on it. If you feel it's to much then yes use a swivel. But best if it's a impact socket.

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TongMan

Okay. I was scared to move that bar.

halogodx

Dont worry about the pressure on the steering bar. It'll be hard if not impossible for u to break it by just pushing against it. USE AN IMPACT SOCKET. I learned that the hard way when i was doing mine, Impact socket got it off after a couple seconds of putting my full body weight on the breaker bar.

Skeeterbop

Helped a friend of mine removing his cats last weekend. We were able to get everything off except the two demon bolts. We spent about 5 hours trying to get those stupid bolts out. We ended the day with the two bolts still in place, with the passenger side stripped. We managed to break a universal as well. Friday my friend and another one of his friends went to work on those two bolts again. They used a bolt puller and actually managed to break one of them before getting them off. They used an Acetylene torch to heat the bolts then tried again. This time the bolts snapped and they were able to get the cats off.

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Srenity: "Yeah no rest needed to spread the love when your 20 that's for sure...."

AlexRaymond19

Not sure if this was suggested yet or not, but i know from experience that if you spray some penetrating oil on it then start your car and heat it up for a little bit, wait for it to get cold and do that a few times its MUCH easier to get off. Acts like a normal bolt after that...

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2010 370Z Touring MT | Stillen | Motordyne | Momentum| Z1 | Fast Intentions | Advant Garde | RE11 | Swift | SPC | Quaife | Whiteline | Evo R | 322RWHP 259ft-lb Mustang

Mandingo

Thats what I did to avoid the bar.

My demon bolt besting apparatus was arranged like this:

1. impact socket (6-point of course)
2. then a 1/2 inch universal joint (to help get around the steering rod)
3. a 1 foot long 1/2 inch drive extension
4. another 1/2 in drive U joint (had two so I figured why not)
5. a 2 foot long 1/2 in drive extension
6. finally a 1/2 in drive breaker bar

I had soaked the bolts in Kroil the day before which helped I'm sure.

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some mods

IDZRVIT

Demon bolts 0 - IDZRVIT 2!!! I just came up from my garage after spending 2 hours getting those two bastirds out. I put PB blaster on the right side bolt - waste of time as the oil can't penetrate. How do I know? There was no penetrating oil on the threads when I removed it. I used a 1/2" drive 6 pt impact socket attached to a 6" extension attached to a universal attached to couple of other extensions. Put a 24" pipe over the 1/2" bar and applied torque. Success. The left side was the same method without the universal and I removed the air box. Sheared the head of the bolt clean off. Success. The key to get those bolts out is to make 100% sure that the socket is square onto the bolt head. If not, you'll round the head of the bolt. There isn't any trick to get these out such as using heat and penetrating oil and ??? Quality tools and a strong forearm is all that is required.

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"America.... still builds rockets!"
Vette: 355 cid, 400 rwhp
'13 CTS-V Coupe: 6.2L LSA, 556HP

SPOHN

The main key is doing it when the car is new

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IDZRVIT

I have over 10K miles on mine but the bolts are as new.

__________________
"America.... still builds rockets!"
Vette: 355 cid, 400 rwhp
'13 CTS-V Coupe: 6.2L LSA, 556HP

SPOHN

I had about 800 miles when I did mine. It was butter. But I swear the bolts are rusted when first installed.

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shadowchemos

Gonna try to revive this because I'm not good with the search function on the forum and I found this using google.

Got the 2 "demon bolts" off but I am wondering how to get the other ones off, my car isn't high enough off the ground to get enough leverage, do I just keep spraying pb blaster on that and keep trying? Also the bolts that are mounted towards the outsides of the car have the heads facing towards the front of the car. I have no idea how to even get at them.

Just in case anyone reads this, my car has 70,000 miles on it. Everything is rusted to **** since I daily it in Illinois lol.

Last thing is, if I break or cut the head of the bolt I am totally ****** right? Since these retarded bolts have threads they wouldn't just fall out??

I can't believe I would ever say this, but my pos RX8 was easier to work on that my Z. Really unhappy with level of engineering for what I consider to be an expensive car.

Might look for a shop nearby to do this for me but I kinda hate paying someone for the labor since the test pipes only cost me $80.

If anyone reads this and can help in any way please let me know.

Thanks!

madwi

Take the intakes off and go at it from the front of the car. Use lots of extensions mentioned in this thread. 1/2" equipment. PBblast the snot out of them.