Exhaust flange gasket material importance?

JSON · 02-12-2016, 01:25 AM

Hey All,

Just picked up a used CBE. I need to buy two 2.5" gaskets for mating the Y pipe to the cats.

Can I just use the FelPro stuff from AutoZone, or do I really need to go with the elastomer coated graphite (Vibrant, Z1)? I just want to try to install this weekend and don't wanna wait for shipping.

Thanks

barncobob · 02-12-2016, 05:47 AM

might try a performance/speed shop

Chuck33079 · 02-12-2016, 08:04 AM

Red RTV will work just fine.

JSON · 02-12-2016, 09:46 AM

Quote:

Originally Posted by barncobob

might try a performance/speed shop

I'm gonna ask a exhaust shop around me to see what they've got.

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JSON · 02-12-2016, 09:46 AM

Quote:

Originally Posted by Chuck33079

Red RTV will work just fine.

Only red RTV? How about red RTV around Felpri?

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Chuck33079 · 02-12-2016, 10:47 AM

Just rtv is fine.

SouthArk370Z · 02-13-2016, 10:13 AM

Any decent brand of exhaust gaskets should work well. Don't get the cheapest ones, but there's no need to spend $$$ for them, either. Just make sure the inside of the gasket fits so that it is flush with the ID of the pipe.

I'm not a big fan of Chuck33079's "RTV only" method but have used it in "emergency" situations. A little RTV will help hold the gasket in place during installation.

Chuck33079 · 02-13-2016, 10:39 AM

If you're going to use a gasket, get that copper gasket spray and hose down both sides of the gasket. That stuff is great.

JSON · 02-13-2016, 11:48 AM

I went to autozone and was able to find a felpro gasket (looks like graphite mix) with a fire ring that fits almost perfectly (by like a quarter inch, will make one of mounting holes larger to compensate). I'm prob gonna use these with rtv applied on both sides. It's going from the stock cats (2.25) to the y pipes (2.5)

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02-12-2016, 01:25 AM	#1 (permalink)
JSON Base Member Join Date: Jul 2015 Location: Houston Posts: 50 Drives: 09 AW 370Z Sport 6MT Rep Power: 10	Exhaust flange gasket material importance? Hey All, Just picked up a used CBE. I need to buy two 2.5" gaskets for mating the Y pipe to the cats. Can I just use the FelPro stuff from AutoZone, or do I really need to go with the elastomer coated graphite (Vibrant, Z1)? I just want to try to install this weekend and don't wanna wait for shipping. Thanks Last edited by JSON; 02-12-2016 at 01:35 AM.

02-12-2016, 08:04 AM	#3 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	Red RTV will work just fine. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

02-12-2016, 10:47 AM	#6 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	Just rtv is fine. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

02-13-2016, 10:13 AM	#7 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	Any decent brand of exhaust gaskets should work well. Don't get the cheapest ones, but there's no need to spend $$$ for them, either. Just make sure the inside of the gasket fits so that it is flush with the ID of the pipe. I'm not a big fan of Chuck33079's "RTV only" method but have used it in "emergency" situations. A little RTV will help hold the gasket in place during installation. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

02-13-2016, 10:39 AM	#8 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	If you're going to use a gasket, get that copper gasket spray and hose down both sides of the gasket. That stuff is great. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

02-12-2016, 05:47 AM	#2 (permalink)
barncobob A True Z Fanatic Join Date: Sep 2015 Location: hangtown, CA Posts: 1,164 Drives: 16 370Z auto Rep Power: 590	might try a performance/speed shop

02-13-2016, 11:48 AM	#9 (permalink)
JSON Base Member Join Date: Jul 2015 Location: Houston Posts: 50 Drives: 09 AW 370Z Sport 6MT Rep Power: 10	I went to autozone and was able to find a felpro gasket (looks like graphite mix) with a fire ring that fits almost perfectly (by like a quarter inch, will make one of mounting holes larger to compensate). I'm prob gonna use these with rtv applied on both sides. It's going from the stock cats (2.25) to the y pipes (2.5) Sent from my XT1053 using Tapatalk

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