[neoshi]

No more need to cut and rotate flanges!! But Supers587 needs 10 people to get another batch rolling. I totally missed the boat. I'm #5, so if you guys want to be able to change exhausts without going to the shop, help a brother out? :biggrin:

It's on RS25 but I won't link. Your desire will find it.

Mods if this is NOT ok, please delete. I just need 5 more people It's a limited production item that will end after this batch supposedly.

 

[neoshi]

Ok let's explore making our own then..

Let's see.. we can use a 2.25" 304 SS inlet flange so that the cat->adapter flange can fit inside, or we can use a donut flange that is 2.25" so we might possibly use a donut gasket for it to seal really well. RVT would help there to seal even better.

2" of 2.25" OD 304 SS pipe between, and a 2.25" flange for the adapter->catback side, but if we could maybe make the pipe mimic the oem cat flange where the pipe extends past the adapter, we'd be able to use another donut gasket to seal between the adapter and an oem catback (since the midpipe starts with a donut flange), or use a flat gasket when using an aftermarket catback.

maybe i should draw this out.. MSPAINT I CHOOSE YOU!! brb la

 

[guylr]

Thanks Neoshi. That's just what I've been looking for. I've done two other cars the muffler shop way and always hated having to cut the flange off a perfectly good mid pipe. Did you pay up in full or just put up a deposit?

Guy

 

[neoshi]

we can't put a deposit yet.. i missed the first batch and he'll only make second batch with 10+ people. we're at 5 with me last i saw. he usually just takes deposits though. i forgot to ask him if it's a 2" extension.. doesn't look like it... just don't send money yet! lol

this is the basic desired concept that supers has basically made tangible:

 

[guylr]

Yep, that would work.

 

[guylr]

How about we post the photo of the adapter so people know what it is? It makes the conversion to a WRX or FXT catback a simple driveway project. And it allows you to keep your stock parts uncut to refit or sell.

 

[guylr]

Here's a photo of the adapter that mounts between the cat outlet and the mid pipe flange.

 

[ScoobyDoobie]

Cool piece!

 

[ScoobyDoobie]

so with this setup, you use a donut gasket and a flat flange gasket? Does the donut go on the cat pipe or mid pipe side of the adapter?

 

[neoshi]

we're trying to convince supers to change the design to more closely match the OEM setup, either donuts on both sides or flat receptor and donut exit. or you could ask him to stick with the original flat flat.

 

[Cuddles]

we can't put a deposit yet.. i missed the first batch and he'll only make second batch with 10+ people. we're at 5 with me last i saw. he usually just takes deposits though. i forgot to ask him if it's a 2" extension.. doesn't look like it... just don't send money yet! lol

this is the basic desired concept that supers has basically made tangible:

Another productive day at work? :Banane35:

 

[neoshi]

VERY

Looks like we might have 10 people!

 

[ScoobyDoobie]

neoshi or guylr, you guys know anything about exhaust fitment on an 04' Impreza OBS? I wonder if a single tip wrx catback would just bolt up?

 

[neoshi]

Isn't the 04 OBS routed just like the 98-05 Foresters and Imprezas (NA)? That would mean that the flanges are just like ours and a WRX catback would require rotating flange and extended as well. If that's the case, then this adapter would work too.

Yeah, opposedforces is showing the same PNs as 2.5is

 

[thebeephaha]

neoshi,

Remember that Prodrive Forester specific axle back that JDM Junkyard was selling? Well I bought it and we came to the conclusion I need it lengthened and the flange rotated for it to fit my NA.

Would this adapter do the same thing? If so, I'd go for one if you need more people.

 

[neoshi]

this is for between the cat and midpipe so you'll need a midpipe from a turbo forester or wrx or sti to mate it up without need for cutting. you should be able to find one for free though.. nasioc folks seem to sell it for $20 or less.

 

[thebeephaha]

Ah gotcha, my noob got the better of me, but you got me the info I was looking for.

Thanks!

 

[ScoobyDoobie]

Isn't the 04 OBS routed just like the 98-05 Foresters and Imprezas (NA)? That would mean that the flanges are just like ours and a WRX catback would require rotating flange and extended as well. If that's the case, then this adapter would work too.

Yeah, opposedforces is showing the same PNs as 2.5is

Really thinking hard about getting one of these. Kinda sucks to spend $90 on an adapter to use a free or $20 exhaust though. Pay to play as they say.

So which end of the adapter would the donut gasket go on? The side that connects to the catpipe or the side that connects to the midpipe?

 

[neoshi]

Thing is.. even if you get a free catback, you will probably still spend $50-100 to modify it to put it on (unless you weld at home/friend), and another $50-100 to return to stock one day or switch to another catback. So, this would pay for itself I think, and is also a rare piece that can be resold

the donut gasket would go on the catback side (midpipe), though you might need one for the cat side too since that is a donut flange into the adapter.

 

[ScoobyDoobie]

Thing is.. even if you get a free catback, you will probably still spend $50-100 to modify it to put it on (unless you weld at home/friend), and another $50-100 to return to stock one day or switch to another catback. So, this would pay for itself I think, and is also a rare piece that can be resold

the donut gasket would go on the catback side (midpipe), though you might need one for the cat side too since that is a donut flange into the adapter.

True, good point, hadn't thought of it like that.

So double up on the donuts? I am just very wary of having leaks anywhere. Want to guarantee a great fit and tight seal