AWD downpipes on RWD?

[StingerGT1Mike]

Anyone know the mounting differences? I found OBX downpipes for $160 cheaper then the next cheapest option but they are labeled AWD. Just wondering if I could get them on my RWD.

 

[oddball]

They are a very different shape due to the forward driveshaft on the passenger side.

FWIW, you can get a muffler shop to make replacements quite easily. Also, you can just drop the stock ones and modify them yourself to be essentially equivalent to the aftermarket pipes. The oval shape of the stock pipe isn't a restriction.

 

[BertBert2019GT]

sooo just thinking out loud here...

are the AWD and RWD downpipes different lengths? so if one bank was connected to AWD downpipe and another bank was connected to RWD downpipe... they would be unequal length headers resulting in the coveted subie rumble?!?!

 

[SKStinger]

Pretty confident length and shape of the pipes are identical. The only difference is the location of the mounting bracket. The placement is different between AWD and RWD.

 

[BertBert2019GT]

damn. well IF they were different lengths, maybe a tuning authority could offer some input, would ULH’s on a stingers 3.3t have a negative effect on performance/operation?

I heart the UHL trick i’m going to get some fabricated for my girls n/a forester. the rumble. splooj

 

[SteveCo]

SSR sells exactly the same midpipes (length, shape and mounts) for both RWD and AWD. They include an additional adapter bracket for the AWD cars, to connect the mounting plate on the pipes to the revised AWD mounting location on the car.

The length of the pipes, and relative flange locations, is obviously the same on both cars. I can't say that there aren't any difference in the pipe contours, for manufacturers who supply both - obviously they would have different mounting plates welded to them. It does seem unlikely that they would have different forms/shapes for the pipes themselves, when it's not needed.

 

[SKStinger]

SSR sells exactly the same midpipes (length, shape and mounts) for both RWD and AWD. They include an additional adapter bracket for the AWD cars, to connect the mounting plate on the pipes to the revised AWD mounting location on the car.

The length of the pipes, and relative flange locations, is obviously the same on both cars. I can't say that there aren't any difference in the pipe contours, for manufacturers who supply both - obviously they would have different mounting plates welded to them. It does seem unlikely that they would have different forms/shapes for the pipes themselves, when it's not needed.

Agreed. I had the SSR pipes in mind as well and remember how they just added a different mounting plate to outfit the AWD owners.

 

[Tonkabob]

Some SSRs hit the awd transmission so depending on the design these may hit also.

 

[oddball]

sooo just thinking out loud here...

are the AWD and RWD downpipes different lengths? so if one bank was connected to AWD downpipe and another bank was connected to RWD downpipe... they would be unequal length headers resulting in the coveted subie rumble?!?!

The turbos significantly reduce any rumble potential. You can still get loud, but a true rumble? Not really.
If a specific sound is your goal then go to a local exhaust shop and have them build something custom for you using mufflers they recommend.

 

[StingerGT1Mike]

Well screw it I just ordered the Arks for RWD so I shouldn't have any issues.