Front pipe installation - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Kai Uhl · 09-11-2013, 02:41 AM

I installed my front pipe today and was having trouble lining up the front pipe to the midpipe. I tightened the spring bolts as much as I could but i got this gap. I know it probably shouldnt be like this but is this ohkay?

Bach415 · 09-11-2013, 03:04 AM

What I'd suggest is taking the whole exhaust system off (front pipe to axleback) and redo it. There might be a chance that you can have a leak there.

cnk · 09-11-2013, 11:18 AM

No need to take it all off. Just loosen everything so that you can wiggle things around, then tighten from the front to the rear.

zc06_kisstherain · 10-10-2013, 08:39 PM

ah shit..i thought donut gasket was there to do seal and i didn't fully close it when i installed my motiv front pipe. lol i guess i have to go back and re-tight it to fully close it?

wparsons · 10-11-2013, 11:21 AM

You'll always have a gap with the donut gasket, but if it's doing it's job you won't have leaks.

86_Otaku · 12-01-2013, 03:16 PM

I have the same problem, guess I will have to redo my whole exhaust AGAIN! 2nd time
What a pain

ramiram1984 · 12-01-2013, 07:20 PM

I suggest using copper gasket sealant as well

mrk1 · 12-01-2013, 07:50 PM

Any joints with a donut will have a gap between the flanges that's how they are supposed to work. However the gap should be as close to even as you can make it, not lop sided like in the picture.

86_Otaku · 12-01-2013, 07:51 PM

I just finished mine today. And i too have a gap but no leak. Just need longer hangers now

Danklvr · 12-01-2013, 08:08 PM

you re-used the oem doughnut, or replaced with a new one?

86_Otaku · 12-01-2013, 08:19 PM

Oem donut. With oem spring bolts

86_Otaku · 12-01-2013, 08:20 PM

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jonbonazza · 12-03-2013, 11:16 AM

I suggest loosening all of the bolts and trying to line things up better. It helps to use a jack stands to hold the pipes in place so that you can get it all lined up before tightening anything. Also, you may need to adjust the hangers in the rubber bushings to get the alignment correct.

Foobar · 12-03-2013, 11:26 AM

Does your aftermarket frontpipe require the use of the OEM donut/spring bolts? I know the Perrin, GReddy, and Invidia pipes don't use them.

09-11-2013, 02:41 AM	#1
Kai Uhl Member Join Date: Jan 2013 Drives: 2013 Scion FR-S Location: Temecula, CA Posts: 97 Thanks: 7 Thanked 14 Times in 11 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Front pipe installation I installed my front pipe today and was having trouble lining up the front pipe to the midpipe. I tightened the spring bolts as much as I could but i got this gap. I know it probably shouldnt be like this but is this ohkay?

12-01-2013, 07:50 PM	#8
mrk1 Senior Member Join Date: Mar 2013 Drives: Sterling BRZ Ltd Location: New England Posts: 1,702 Thanks: 403 Thanked 1,389 Times in 671 Posts Mentioned: 21 Post(s) Tagged: 2 Thread(s)	Any joints with a donut will have a gap between the flanges that's how they are supposed to work. However the gap should be as close to even as you can make it, not lop sided like in the picture. __________________ The Build Thread GT28RS - eBoost2 - 3.91 Final Drive - Supra LSD

12-01-2013, 08:08 PM	#10
Danklvr Senior Member Join Date: Oct 2013 Drives: 2014 FR-S 6MT Argento Location: SoCal Posts: 293 Thanks: 67 Thanked 181 Times in 80 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	you re-used the oem doughnut, or replaced with a new one? __________________ How ya gonna keep 'em down on the farm once they've seen Karl Hungus?

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09-11-2013, 03:04 AM	#2
Bach415 Senior Member Join Date: Feb 2013 Drives: Whiteout FRS Location: San Francisco Posts: 1,253 Thanks: 909 Thanked 416 Times in 297 Posts Mentioned: 31 Post(s) Tagged: 2 Thread(s)	What I'd suggest is taking the whole exhaust system off (front pipe to axleback) and redo it. There might be a chance that you can have a leak there.

09-11-2013, 11:18 AM	#3
cnk Senior Member Join Date: Aug 2012 Drives: '13 DGM BRZ Limited Location: NJ Posts: 1,201 Thanks: 59 Thanked 547 Times in 339 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	No need to take it all off. Just loosen everything so that you can wiggle things around, then tighten from the front to the rear.

12-01-2013, 03:16 PM	#6
86_Otaku Senior Member Join Date: Sep 2013 Drives: 2013 BRZ Limited-SWP Location: Los Angeles, CA Posts: 130 Thanks: 11 Thanked 28 Times in 20 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I have the same problem, guess I will have to redo my whole exhaust AGAIN! 2nd time What a pain

12-01-2013, 07:51 PM	#9
86_Otaku Senior Member Join Date: Sep 2013 Drives: 2013 BRZ Limited-SWP Location: Los Angeles, CA Posts: 130 Thanks: 11 Thanked 28 Times in 20 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I just finished mine today. And i too have a gap but no leak. Just need longer hangers now

12-01-2013, 08:19 PM	#11
86_Otaku Senior Member Join Date: Sep 2013 Drives: 2013 BRZ Limited-SWP Location: Los Angeles, CA Posts: 130 Thanks: 11 Thanked 28 Times in 20 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Oem donut. With oem spring bolts

12-01-2013, 08:20 PM	#12
86_Otaku Senior Member Join Date: Sep 2013 Drives: 2013 BRZ Limited-SWP Location: Los Angeles, CA Posts: 130 Thanks: 11 Thanked 28 Times in 20 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)

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