Demon Bolts

christian370z · 09-11-2011, 12:46 AM

^ Agreed completely with Spohn. I soaked one bolt with PB blaster and did nothing with the other. I then started the car for 10-20 seconds to get the bolts slightly warm. The one with the PB blaster came off nice and cleanly. The one I didn't? I sheared the stud off completely.

I used all 1/2" impact extensions, a 6 PT impact socket, and a 3' breaker bar. I also did not remove any of the intake, I only had to loosen the driver's side slightly to squeeze the socket and extensions through.

I did this all on the garage floor and it took me about 4 hours with little mechanical experience. Installing the new cats is soooo much easier, you will be using all new bolts which makes future removal much easier as well.

joshs09slvrZ · 09-11-2011, 09:22 AM

Quote:

Originally Posted by christian370z

^ Agreed completely with Spohn. I soaked one bolt with PB blaster and did nothing with the other. I then started the car for 10-20 seconds to get the bolts slightly warm. The one with the PB blaster came off nice and cleanly. The one I didn't? I sheared the stud off completely.

I used all 1/2" impact extensions, a 6 PT impact socket, and a 3' breaker bar. I also did not remove any of the intake, I only had to loosen the driver's side slightly to squeeze the socket and extensions through.

I did this all on the garage floor and it took me about 4 hours with little mechanical experience. Installing the new cats is soooo much easier, you will be using all new bolts which makes future removal much easier as well.

I'll be going out today to pick up some PB blaster. I plan on doing this install next weekend so I can soak the bolts Thursday overnight, drive it to and from work on Friday (hopefully the heat will help) and then soak the bolts again Friday when I get home before I pull off the exhaust later on at night when everything's cooled down. We'll see how it goes...

dP3NGU1N · 04-14-2013, 01:42 PM

Quote:

Originally Posted by christian370z

^ Agreed completely with Spohn. I soaked one bolt with PB blaster and did nothing with the other. I then started the car for 10-20 seconds to get the bolts slightly warm. The one with the PB blaster came off nice and cleanly. The one I didn't? I sheared the stud off completely.

I used all 1/2" impact extensions, a 6 PT impact socket, and a 3' breaker bar. I also did not remove any of the intake, I only had to loosen the driver's side slightly to squeeze the socket and extensions through.

I did this all on the garage floor and it took me about 4 hours with little mechanical experience. Installing the new cats is soooo much easier, you will be using all new bolts which makes future removal much easier as well.

^This guy mentions using new bolts. I bought my HFCs used and the guy didn't give me any bolts. Is it necessary to use new ones and, if so, where can I buy them from?

scionide · 04-14-2013, 02:01 PM

Quote:

Originally Posted by dP3NGU1N

^This guy mentions using new bolts. I bought my HFCs used and the guy didn't give me any bolts. Is it necessary to use new ones and, if so, where can I buy them from?

Same situation I had, if you know the sizes you can just goto home depot and buy them. I was told by the company that made my hfcs some mixed (and wrong) info...basically theres one stud attached to the header side, so you'll at least need two new bolts n nuts per side.

OEM hardware could work but thats provided nothing breaks during removal

09-11-2011, 12:46 AM	#1 (permalink)
christian370z A True Z Fanatic Join Date: Jul 2010 Location: Newport Beach Posts: 3,900 Drives: 2010 370Z/Saab 900se Rep Power: 433	^ Agreed completely with Spohn. I soaked one bolt with PB blaster and did nothing with the other. I then started the car for 10-20 seconds to get the bolts slightly warm. The one with the PB blaster came off nice and cleanly. The one I didn't? I sheared the stud off completely. I used all 1/2" impact extensions, a 6 PT impact socket, and a 3' breaker bar. I also did not remove any of the intake, I only had to loosen the driver's side slightly to squeeze the socket and extensions through. I did this all on the garage floor and it took me about 4 hours with little mechanical experience. Installing the new cats is soooo much easier, you will be using all new bolts which makes future removal much easier as well. __________________ -320whp / 259wftlbs- SP Rays -- RE-11s -- SpecialtyZ Tune -- Swift Springs -- Stillen 25R Oil Cooler -- Stillen G3 Intakes -- Berk HFCs -- F.I. 12" CBE -- Stillen Sway Bars -- Es14 Spring -- INGS+1 lip -- CF Spoiler -- GTR Start Button -- VLED Parking Lights -- PWJDM V2 shift knob

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