Help with Tomei Overpipe! - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

juniorrr · 09-29-2019, 02:56 AM

Hey guys so I’m about to install my Tomei overpipe but I wanted to ask you guys how did you torque down the studs onto the overpipe? Do I install it on the header first and then torque down the studs? Or do I try and torque the studs down first then install them on the header? It says use double nut at 29.4NM which is about 20ft lbs but when I torque it down the torque wrench caps at that spec and I’m afraid of going further in case of breaking the studs.. Please help thnx!

mswbrz · 09-29-2019, 04:46 AM

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juniorrr · 09-29-2019, 06:23 AM

Quote:

Originally Posted by mswbrz

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Yeah i’ve Seen it not a good video and doesn’t answer my question unfortunately

H1C · 10-01-2019, 12:05 AM

I followed the instructions and torqued the stud onto the Tomei OP using the double nut method. If I had to do it again I'd back it off to 15 lb-ft or even less. At 20 lb-ft, the threads on one of the studs got stretched a bit, and I'll have to replace that stud at some point.

I think even if you hand snug the stud onto the OP, it'll get tightened down as you torque that end of the OP to the FP.

09-29-2019, 02:56 AM	#1
juniorrr Senior Member Join Date: Apr 2018 Drives: Scion Frs Location: South Gate Posts: 125 Thanks: 26 Thanked 6 Times in 5 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Help with Tomei Overpipe! Hey guys so I’m about to install my Tomei overpipe but I wanted to ask you guys how did you torque down the studs onto the overpipe? Do I install it on the header first and then torque down the studs? Or do I try and torque the studs down first then install them on the header? It says use double nut at 29.4NM which is about 20ft lbs but when I torque it down the torque wrench caps at that spec and I’m afraid of going further in case of breaking the studs.. Please help thnx!

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09-29-2019, 04:46 AM	#2
mswbrz Senior Member Join Date: Aug 2014 Drives: 2013 brz limited / galaxy blue Location: Oakdale Posts: 230 Thanks: 151 Thanked 66 Times in 43 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Sent from my iPhone using Tapatalk

10-01-2019, 12:05 AM	#4
H1C Senior Member Join Date: Feb 2015 Drives: 2014 FR-S MT Location: metro-Atlanta area Posts: 126 Thanks: 131 Thanked 80 Times in 48 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I followed the instructions and torqued the stud onto the Tomei OP using the double nut method. If I had to do it again I'd back it off to 15 lb-ft or even less. At 20 lb-ft, the threads on one of the studs got stretched a bit, and I'll have to replace that stud at some point. I think even if you hand snug the stud onto the OP, it'll get tightened down as you torque that end of the OP to the FP.

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