Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - Front pipe to midpipe exhaust leak, help please

justin6280 · 02-07-2019, 05:44 PM

Okay so, I recently switched from a Perrin catback to an Invidia Q300.

I have a massive air leak between the stock front pipe and the Q300 midpipe, and I'm not sure why.

Currently I'm just reusing the OEM donut gasket.

Is there some kind of special gasket / adapter needed to fit into the Q300 midpipe properly? Do I need to add a flat gasket in addition to the OEM donut gasket?

Would it be safe to just ditch the donut gasket and opt for flat gaskets and NON-springy bolts?

I'd appreciate some opinions here, thank you!

02-07-2019, 05:44 PM	#1
justin6280 Member Join Date: Mar 2015 Drives: 2015 FRS Location: St. Louis, MO Posts: 44 Thanks: 22 Thanked 18 Times in 9 Posts Mentioned: 1 Post(s)	Front pipe to midpipe exhaust leak, help please Okay so, I recently switched from a Perrin catback to an Invidia Q300. I have a massive air leak between the stock front pipe and the Q300 midpipe, and I'm not sure why. Currently I'm just reusing the OEM donut gasket. Is there some kind of special gasket / adapter needed to fit into the Q300 midpipe properly? Do I need to add a flat gasket in addition to the OEM donut gasket? Would it be safe to just ditch the donut gasket and opt for flat gaskets and NON-springy bolts? I'd appreciate some opinions here, thank you!