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Old 03-30-2008, 04:23 PM   #1
rs2.5-3.0
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Question Legacy 2.5i exhaust options

Just curious as to what will work for a 2008 Legacy 2.5i?? Any issues w/ CEL?

Any NA headers out there? i hear that GT exhausts (mufflers) should bolt up to the 2.5i's. Can anyone confirm?

Thx,

Brian
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Old 03-30-2008, 06:08 PM   #2
penguin311magic
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go to boxer4racing.com. The Borla headers might work as long as you get the high flow cat and the borla hush catback. But ask them first
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Old 03-31-2008, 03:36 AM   #3
PA-Outback2000
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also from boxer4racing, check stromung. when u add headers, u may throw a CEL. just doing cat and catback won't. i have a random tech cat and stromung exhaust on mine and love it. see what they have for the 2008's though.
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Old 03-31-2008, 03:23 PM   #4
LTracer
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Originally Posted by PA-Outback2000 View Post
also from boxer4racing, check stromung. when u add headers, u may throw a CEL. just doing cat and catback won't. i have a random tech cat and stromung exhaust on mine and love it. see what they have for the 2008's though.
installing a HFC won't throw a CEL? are you guessing? New cars are VERY sensitive emissions wise, alot more so than your '00. I believe 07-08 legacy's are PZEV rated and a HFC could easily throw a CEL.

Furthermore these car's can't be open sourced tune yet as they are CAN-BUS (essentially OBD 2.5), although I think the ROMraider guys are working on it as we speak.
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Old 03-31-2008, 06:08 PM   #5
rougeben83
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His car has the factory EL header like the other 2.5i's, and he'll need to get his catback midpipe re-bent to fit the older style HFC. Using the catback for an LGT would probably be your best bet if you want something premade (still need to have it modified to fit the HFC).

Also check how many 02 sensors you have. The headers from the older cars don't have 02 sensor bungs on them; I think the new Legacy 2.5i's at least have 2 02 sensors on the headers that you'll need to have bungs welded on for.

Pics from a 2.5i Legacy (actually these are my headers when installed by the previous owner)




Last edited by rougeben83; 03-31-2008 at 10:24 PM.
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Old 03-31-2008, 08:50 PM   #6
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Yea, with the newer models, you need to get the HFC for the whole setup to bolt on. I'm scared to do it now, even though I have the cat-back sitting in my room :-(
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Old 04-01-2008, 04:59 AM   #7
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my bad... thought the 8 was a 0. yes the new ones are more strict.
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Old 04-04-2008, 08:40 PM   #8
rs2.5-3.0
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so i'm screwed as far as just bolting up a header and calling it a day. damnit.

i know power isn't going to be made but i want the rumble back.
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Old 04-04-2008, 09:06 PM   #9
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Originally Posted by rs2.5-3.0 View Post
so i'm screwed as far as just bolting up a header and calling it a day. damnit.

i know power isn't going to be made but i want the rumble back.
GT mufflers will bolt on. The centre pipe looked like it would fit, but I was too cheap to buy a new donut gasket so I did not try.

I did bolt on the GT mufflers to the wifes Legacy though. Looks nicer, might be a tiny bit throatier, but that could just be me justifying the ten minutes I took installing it
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Old 04-05-2008, 06:12 AM   #10
PA-Outback2000
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headers should work. try borlas. stromung or any other catback should just bolt up. check boxer4racing.com to make sure they still do exhausts for ur year. i think their's were dual-tip mufflers, but can do single tip if u really wanted to.
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Old 04-05-2008, 02:55 PM   #11
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Quote:
Originally Posted by hondaslayer View Post
GT mufflers will bolt on. The centre pipe looked like it would fit, but I was too cheap to buy a new donut gasket so I did not try.

I did bolt on the GT mufflers to the wifes Legacy though. Looks nicer, might be a tiny bit throatier, but that could just be me justifying the ten minutes I took installing it
Right, you basically need to get the catalytic section from an older car and rework how your catback mates up to it.

The pic I posted, that's pretty much what the guy did.
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