Flat flange to Donut?

[knapper]

Last year I purchased a full exhaust from FT86, from the headers back. I love the exhaust, quality is great, but I just didn't understand how loud it would be for my taste.

Over this winter I was able to pick up a brand new exhaust from a 2020 BRZ, and I want to keep the front section of the FT86 package. When I had it made, they did it with flat flange (performance connect), which was fine when using the entire FT86 exhaust, but now that I am switching back, is there any EASY way for me to join the front pipe to the stock cat back?

What are my options, and which would you opt for?

Once I get the exhaust off the car, I will post it up in classified.

[humfrz]

Originally Posted by knapper

Last year I purchased a full exhaust from FT86, from the headers back. I love the exhaust, quality is great, but I just didn't understand how loud it would be for my taste.

Over this winter I was able to pick up a brand new exhaust from a 2020 BRZ, and I want to keep the front section of the FT86 package. When I had it made, they did it with flat flange (performance connect), which was fine when using the entire FT86 exhaust, but now that I am switching back, is there any EASY way for me to join the front pipe to the stock cat back?

What are my options, and which would you opt for?

Once I get the exhaust off the car, I will post it up in classified.

I would suggest you use the humfrz method.

Drive your car up to the local muffler shop, with your exhaust pieces and tell them what you want done. Take a seat in the waiting room, have a cup of coffee and read an auto magazine. Pay them and leave.

[norcalpb]

Originally Posted by knapper

Last year I purchased a full exhaust from FT86, from the headers back. I love the exhaust, quality is great, but I just didn't understand how loud it would be for my taste.

Over this winter I was able to pick up a brand new exhaust from a 2020 BRZ, and I want to keep the front section of the FT86 package. When I had it made, they did it with flat flange (performance connect), which was fine when using the entire FT86 exhaust, but now that I am switching back, is there any EASY way for me to join the front pipe to the stock cat back?

What are my options, and which would you opt for?

Once I get the exhaust off the car, I will post it up in classified.

I wouldn’t just bolt the stock catback to a flat flange unless you had a flex pipe like the Perrin exhaust does:



Hate to say it, but you may need to sell the aftermarket front pipe and go with stock if you wanna do it right.

[knapper]

Yeah, really didn't want to do that, I purchased the front/overpipe combo, and plan on doing headers. I think I will likely have to just show up to the muffler shop. Tell them what I want and then they make it happen.

Thanks guys! Figured there might be an easy adapter I can't find yet or something. Cheers

[NoHaveMSG]

Something like this, but cut the tapered bell end off so that it is flat. Worked for me.

https://www.amazon.com/Mishimoto-MME...%2C113&sr=8-19

[RToyo86]

Originally Posted by knapper

Once I get the exhaust off the car, I will post it up in classified.

How did you spec the catback? I had a feeling it would be too loud for me as well.

They suggested I buy one after the fujistubo I had on order got discontinued, or they simply couldn't get it as a reasonable cost.

Ended up with a greddy SP

[knapper]

Originally Posted by RToyo86

How did you spec the catback? I had a feeling it would be too loud for me as well.

They suggested I buy one after the fujistubo I had on order got discontinued, or they simply couldn't get it as a reasonable cost.

Ended up with a greddy SP

Straight back! Haha ��

Dual 4" mufflers, non-resonated. You likely remember how loud it was under WOT last summer. My neighbors hate me, and I don't want to be that guy.

I got the BRZ exhaust hoping I could use that, and truly I wouldn't want to have to get another exhaust. Hoping I can take the FT86 off the car from catback. Worst case I could sell the axleback and midpipe separate too.

How do you like the SP?

[knapper]

Originally Posted by NoHaveMSG

Something like this, but cut the tapered bell end off so that it is flat. Worked for me.

https://www.amazon.com/Mishimoto-MME...%2C113&sr=8-19

Yes, I was looking at something like that. I believe that there are a few places that make those. I thought Perrin had something but I can't find it.

Thanks 🙏

[RToyo86]

Originally Posted by knapper

Straight back! Haha ��

Dual 4" mufflers, non-resonated. You likely remember how loud it was under WOT last summer. My neighbors hate me, and I don't want to be that guy.

I got the BRZ exhaust hoping I could use that, and truly I wouldn't want to have to get another exhaust. Hoping I can take the FT86 off the car from catback. Worst case I could sell the axleback and midpipe separate too.

How do you like the SP?

Yes, I remember hearing it at autocross it was quite loud.
There's a contact I can connect you with at FT86MS who can probably help you with a OEM flange connect on the front pipe.


I don't have it in my hands yet, ETA likely end of next week.

[knapper]

Originally Posted by RToyo86

Yes, I remember hearing it at autocross it was quite loud.
There's a contact I can connect you with at FT86MS who can probably help you with a OEM flange connect on the front pipe.


I don't have it in my hands yet, ETA likely end of next week.

Would be greatly appreciated! I believe the only person I have from there was who did my exhaust, but I do not recall his name now.