anwieczo Posted May 27, 2009 Share Posted May 27, 2009 Hello everyone. I drive a 1997 legacy GT with a DOHC EJ25. I am interested in upgrading my exhaust, but I absolutely cannot find an aftermarket system for sale? So I am considering just having one built custom. I have been looking at the limited selection of headers available for the car and am only finding Borla. I also found a header and uppipe combo that is for the Impreza 2.5 liter made by Topspeed Pro 1 in Taiwan. Would this fit my car and has anyone ever heard of this company and are there products any good? Form looking under the car it looks like (and correct me if I'm wrong) I will need a header, uppipe, and cat back? Any advice will be much appreciated because i have no idea where to start. thanks! Quote Link to comment Share on other sites More sharing options...
bratman18 Posted May 27, 2009 Share Posted May 27, 2009 A header for any 2.5 DOHC will fit, you don't need an up pipe, as they are for turbo cars only. You will need header, high flow cat, and then cat back. I have a Greddy system on my RS and like it. I would think someone would make one for a Legacy Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted May 28, 2009 Share Posted May 28, 2009 (edited) And you should be MUCH more concerned with head gaskets than with the exhaust. Trust me on this one. If they haven't been done then you are looking at doing them or having them done real soon. GD Edited May 28, 2009 by Qman Quote Link to comment Share on other sites More sharing options...
anwieczo Posted May 28, 2009 Author Share Posted May 28, 2009 I have already replaced the head gaskets my friend... Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted May 28, 2009 Share Posted May 28, 2009 I have already replaced the head gaskets my friend... Excelent - so what are you looking for in an exhaust then? There isn't any real performance to be gained being it's a non-turbo..... so are you looking for a different sound? GD Quote Link to comment Share on other sites More sharing options...
bratman18 Posted May 28, 2009 Share Posted May 28, 2009 Excelent - so what are you looking for in an exhaust then? There isn't any real performance to be gained being it's a non-turbo..... so are you looking for a different sound? GD I have to disagree with you on this GD. I saw a very noticeable difference with my headers and cat back on my 2000 RS. It's much quicker than a stock RS Quote Link to comment Share on other sites More sharing options...
Qman Posted May 28, 2009 Share Posted May 28, 2009 I have to disagree with you on this GD. I saw a very noticeable difference with my headers and cat back on my 2000 RS. It's much quicker than a stock RS +1, one of the first performance mods on a N/A Subie should be the exhaust system. Quote Link to comment Share on other sites More sharing options...
EVOthis Posted May 28, 2009 Share Posted May 28, 2009 Hello everyone. I drive a 1997 legacy GT with a DOHC EJ25. I am interested in upgrading my exhaust, but I absolutely cannot find an aftermarket system for sale? So I am considering just having one built custom. I have been looking at the limited selection of headers available for the car and am only finding Borla. I also found a header and uppipe combo that is for the Impreza 2.5 liter made by Topspeed Pro 1 in Taiwan. Would this fit my car and has anyone ever heard of this company and are there products any good? Form looking under the car it looks like (and correct me if I'm wrong) I will need a header, uppipe, and cat back? Any advice will be much appreciated because i have no idea where to start.thanks! Personally I put straight pipes on My 96 Legacy and I love it...Inexpensive and honestly I swear I can feel a little more pick up....However You could always go out and buy an STI... Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted May 29, 2009 Share Posted May 29, 2009 Interesting - I wouldn't have though the stock system to be so restrictive on the newer cars. I suppose it ties in with the emissions and noise requirements. GD Quote Link to comment Share on other sites More sharing options...
anwieczo Posted May 29, 2009 Author Share Posted May 29, 2009 I would buy an STI if I could afford one (I'm a poor college student). I am looking for a different sound. NO FART SOUND. I want that deep Boxer growl...Also I have these annoying heat shields on my stock exhaust and every time I am low in gear or letting the clutch out in first all they do is rattle. Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted May 29, 2009 Share Posted May 29, 2009 I would buy an STI if I could afford one (I'm a poor college student). I am looking for a different sound. NO FART SOUND. I want that deep Boxer growl.... You actually would have a hard time getting rid of the lumpy boxer sound. It has to do with the manifolds not having equal length headers and thus the exhaust pulses are leaving the tail-pipe in a non-uniform pattern. Thus the wacky sound they make. It's not a problem on the non-turbo engines but actually does reduce performance by a slight percentage on the turbo's as the exhaust turbine doesn't receive evenly spaced pressure waves and thus doesn't spin up as fast. There are some headers out there that fix this *problem* on the turbo's and they sounds just like.... a Honda! GD Quote Link to comment Share on other sites More sharing options...
GLCraig Posted May 29, 2009 Share Posted May 29, 2009 Okay, my 94 Legacy had a later EJ22 from 98 subaru, so it had the single port exhaust heads. I had a Borla header, stock cats from a 97 legacy, 2" catback and a magnaflow flow through muffler. My intake was stock with a K&N panel filter. On PIA's Dyno It was putting down 113hp and 118ft-lb at the wheels. The horsepower peak was around 5800rpm and the torque pear was around 4300rpm. The down side to my exhaust was that it was loud. Since my legacy was a wagon, the noise did echo quite a bit, in the passenger compartment. One thing you should do is go on to nasioc www.nasioc.com and read through the Normally Aspirated Powertrain section. There are some good posts on N/A exhaust that discuss exhaust velocity and choosing the size of pipe to use. But watch out, there is a lot of BS on nasioc too. Quote Link to comment Share on other sites More sharing options...
Durania Posted May 29, 2009 Share Posted May 29, 2009 What you need to do is buy a set of replica borla unequal length headers. I would have went this route but I elected to have an 04 STi catback but on just so mine would be quieter. Quote Link to comment Share on other sites More sharing options...
anwieczo Posted May 30, 2009 Author Share Posted May 30, 2009 (edited) What you need to do is buy a set of replica borla unequal length headers. I would have went this route but I elected to have an 04 STi catback but on just so mine would be quieter. Where do you buy the replica borla unequal length headers? That sounds really good. That is the sound that I'm going for... What kind of exhaust system are you using? Edited May 30, 2009 by anwieczo Quote Link to comment Share on other sites More sharing options...
Durania Posted May 30, 2009 Share Posted May 30, 2009 I am using factory headers with an STi catback on my RS. Quote Link to comment Share on other sites More sharing options...
anwieczo Posted May 31, 2009 Author Share Posted May 31, 2009 So an STI catback would fit on my 1997 LGT? Did you have to modify the catback in any way for it to fit? Quote Link to comment Share on other sites More sharing options...
Durania Posted May 31, 2009 Share Posted May 31, 2009 It SHOULD fit your car, it will have to be modified though. When I had mine put on, I had to have it lengthened so it would mate up with all the exhaust hangers and have the factory look. Of course I went with it cause it was given to me and I hated the aftermarket fart can exhaust that was on it when I bought the car. Quote Link to comment Share on other sites More sharing options...
JEGIII Posted June 2, 2009 Share Posted June 2, 2009 I've got a '97 Legacy OBW. I put on the Borla headers and the Stromung single cat pipe. I've got the Stromung center pipe on order, and then I need to decide what to do about a muffler. I've had the headers and cat pipe for about 5 years and haven't had any prroblems. Nice sound and a little bit more top end without a loss at the bottom. Quote Link to comment Share on other sites More sharing options...
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