awdguy Posted April 3, 2010 Share Posted April 3, 2010 anyone got any sites that i can look into or does it have to be a fab exhaust set up? Link to comment Share on other sites More sharing options...
Zues Marine Posted April 3, 2010 Share Posted April 3, 2010 do you need single port or dual port headers? Link to comment Share on other sites More sharing options...
awdguy Posted April 3, 2010 Author Share Posted April 3, 2010 do you need single port or dual port headers? Thing is, my CEL came on and its for a catalyst code. I was thinking if I should just gut out the cat. I'm new to the single/dual port headers. Actually its my first 2.2 legacy wagon so I'm new it. Any ideas? Link to comment Share on other sites More sharing options...
Zues Marine Posted April 3, 2010 Share Posted April 3, 2010 look under your car at where the headers bolt to the engine.. single port headers look like this: http://www.rs25.com/forums/f14/t107933-uel-single-port-headers-stock.html dual port: http://www.speedyracer.com/servlet/the-173/Subaru-Impreza-Header-for/Detail if its a p0420, you're cats may be on the way out... Link to comment Share on other sites More sharing options...
awdguy Posted April 3, 2010 Author Share Posted April 3, 2010 pretty sure its a single port. You think I could just clear the stock cats out and reuse them? Link to comment Share on other sites More sharing options...
Zues Marine Posted April 3, 2010 Share Posted April 3, 2010 you may be able to do that, but it's going to depend on your state's emission laws, i'd clear the code and wait a bit to see what happens before you gut the cats.. are you looking to upgrade your exhaust or just fix the code? Link to comment Share on other sites More sharing options...
awdguy Posted April 3, 2010 Author Share Posted April 3, 2010 would like to upgrade but don't think the significant other would not like that. So fixing the code is what i want. I have already cleared the code today and it came back on again. I'm in michigan so not to worried about emission. Link to comment Share on other sites More sharing options...
ineedmorepsi Posted April 3, 2010 Share Posted April 3, 2010 Ebay because $355 is too much for single port header. Link to comment Share on other sites More sharing options...
awdguy Posted April 3, 2010 Author Share Posted April 3, 2010 Will see. Going to see if cats can be gutted and be reused. Link to comment Share on other sites More sharing options...
Zues Marine Posted April 3, 2010 Share Posted April 3, 2010 ebay doenst have single port subaru headers, custom fabbing one or having an exhaust shop do it is going to be waaay better and cheaper...i agree, $355 is insane! if you gut the cats or go with high flow p0402 cat below efficency has a chance of popping up. to fix it you need to buy a rear O2 spacer http://rallitek.com/rao2sesp.html if you car has rear o2 before the second cat you will need to buy a o2 wire extender http://shopping.lightningmotorsports.co ... 716&page=1 Link to comment Share on other sites More sharing options...
qiman Posted May 6, 2010 Share Posted May 6, 2010 http://www.speedyracer.com/servlet/the-173/Subaru-Impreza-Header-for/Detail These headers show for 00-04 Legacy but $135 seems like a good deal for headers. I have a 98 Legacy GT, will those headers above work for my car? Anyone know if the quality will be much different than the $300+ ones? There are some $145 for the 98 legacy on ebay. Also, any recommended exhaust system for these headers? Zues, I have the same emission concerns as you so any way to get some real header/exhaust performance that will actually pass emissions here? thanks! Link to comment Share on other sites More sharing options...
subikid90 Posted May 6, 2010 Share Posted May 6, 2010 If you have the 2.5 in your car then the speedyracer ones will work. Many people run them and love them. You can find sound clips of them on youtube or around here. -Subikid90 1997 Legacy GT 5spd & EJ251 w/EJ25D heads ~10.5CR 1998 Legacy GT Limited waiting for EJ22T hybrid swap Link to comment Share on other sites More sharing options...
Zues Marine Posted May 6, 2010 Share Posted May 6, 2010 the speedyracer headers are what i have, they fit ANY 2.5L motor, the walls are thinner than the highly overpriced borla but have a much more reputable durability.. the borlas have been known to crack in time but the speedyracers have held up nicely for the most part, theyre also stainless steel so they'll look pretty, and keep all the winter road shit off for a long time, i left my cats stock for now, but the plan is to get a single hi-flow cat and just keep the stock header midpipe flanges and cat section so i can swap back to stock cats come emission testing, with my exhaust setup, i did better than one of my buddies in his 2008 corolla, i went with a 2.5" custom midpipe and straight through vibrant performance muffler, with a small resonator and the boxer rumble roars [ame=http://www.youtube.com/watch?v=4WHAruAI3PA]YouTube- Subaru Legacy Full 2.5" Exhaust[/ame] Link to comment Share on other sites More sharing options...
qiman Posted November 9, 2010 Share Posted November 9, 2010 http://legacygt.com/forums/showthread.php/best-performance-muffleri-125326.html?p=3161161&posted=1#post3161161 Look at my last couple posts.... Link to comment Share on other sites More sharing options...
Zues Marine Posted November 9, 2010 Share Posted November 9, 2010 hello...? 'speed daddy' is not the same as speedyracer.. i have speedyracer headers and they bolted up fine.. Link to comment Share on other sites More sharing options...
DOHCEJ22E1 Posted November 9, 2010 Share Posted November 9, 2010 He has a 1995, this means he has dual-port headers for sure. Nearly any header (if not ALL) that fits 2.5s will fit this car. Single ports weren't produced/sold until 1996. PO420 code means that the cats are no good. You can't reuse it. Have to get a new cat. If you have to go in for emissions, those cats need to functional or you'll fail. I don't know about your state but where I'm from, they stick a tube in your exhaust pipe to 'sniff' the gases coming out. Even if you have your check engine light off, the numbers produced won't lie. As for exhaust, there is a massively wide selection. Basically, anything that can bolt up to a WRX or even a GC STi should bolt up to that car & give it a really nice rumble. Link to comment Share on other sites More sharing options...
Zues Marine Posted November 11, 2010 Share Posted November 11, 2010 bolt up but not without small modification, such as moving mounting points of exhaust hangars, with aftermarket headers, the increased exhaust flow could be tripping the PO420 code from the second cat too, which is something else to keep an eye out for Link to comment Share on other sites More sharing options...
kujito Posted November 15, 2010 Share Posted November 15, 2010 you may be able to do that, but it's going to depend on your state's emission laws, ... Sorry, but that's just wrong. CATs are a FEDERAL MANDATE, and it is illegal to bypass/defeat them. Your state may or may not inspect for them, but gutting or simply removing them is still punishable by law. Link to comment Share on other sites More sharing options...
Zues Marine Posted November 15, 2010 Share Posted November 15, 2010 Your state may or may not inspect for them, but gutting or simply removing them is still punishable by law. yes, but if they don't inspect them....how are they going to know they're gutted or not even there? there's a bajillion people running without cats, im not recommending it, but they-re not going to slap you with a felony and stick you in prison... my suggestion if you don't want cats is to run a cat delete pipe and bolt on your cats when emissions come around.. win/win Link to comment Share on other sites More sharing options...
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