Steeno28 Posted June 22, 2022 Share Posted June 22, 2022 Hey Forum I have a gutted up pipe on my 05 Legacy GT. Shop did this when getting a new motor. I was thinking of trying to find a gutted downpipe and run Cobb stage 2. Would this actually work and if so does anyone have one available for purchase. Please let me know. Thanks in advance. Link to comment Share on other sites More sharing options...
Pleides Posted June 22, 2022 Share Posted June 22, 2022 Gutting the downpipe and running an OTS tune is a no-go. The OTS tune is for a Cobb downpipe which is a much wider diameter pipe. Just gutting the cat from your car won't net you a ton of power because of the restrictive factory exhaust. Link to comment Share on other sites More sharing options...
NORULZleggy Posted June 22, 2022 Share Posted June 22, 2022 Hey Forum I have a gutted up pipe on my 05 Legacy GT. Shop did this when getting a new motor. I was thinking of trying to find a gutted downpipe and run Cobb stage 2. Would this actually work and if so does anyone have one available for purchase. Please let me know. Thanks in advance. PLEASEEE don't cut corners on these cars. Just my opinion Link to comment Share on other sites More sharing options...
Max Capacity Posted June 22, 2022 Share Posted June 22, 2022 Get a real 3" catted DP. then flash stage 2. You'll be glad you did it the right way. Tell us where you live, does your state have emissions testing ? 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
ttnio Posted June 23, 2022 Share Posted June 23, 2022 gut it and tune it ... (pro of course) Link to comment Share on other sites More sharing options...
Haze Posted June 23, 2022 Share Posted June 23, 2022 At one point, the scrap value of the two OEM cats was more than the cost of a new 3" catless DP. Not sure if that's still the case but it can't be far off since deadbeats are still stealing them. Makes gutting the original DP kinda pointless. Link to comment Share on other sites More sharing options...
Steeno28 Posted June 23, 2022 Author Share Posted June 23, 2022 I appreciate everyone's reply. Upon climbing under the car it seems a though I have another issue. At some point a long the line someone welded what seems to be flex pipe from the downpipe to the exhaust. I am located in Indiana and don't have any emission issues. Is the consensus at this point just to purchase some type of 3 inch down pipe. If so are there any recommendations or does anyone have one for sale. Please let me know. Thanks again to all. Link to comment Share on other sites More sharing options...
Max Capacity Posted June 23, 2022 Share Posted June 23, 2022 Check the for sale forum. Or buy a 3" dp from a trusted Vendor. Maybe email my Tuner "tuningalliance@gmail.com and buy the dp from him and ask him about a Tune. You can tell him I sent you. If your on the western side of the country, contact Dave at https://www.cryotuneperformance.com/ Oh, Indiana... use Mike at Tuning Alliance. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
relative4 Posted June 23, 2022 Share Posted June 23, 2022 flex pipe from the downpipe to the exhaust Can you post a pic? Sent from my SM-A102U using Tapatalk Link to comment Share on other sites More sharing options...
bobglaub Posted June 24, 2022 Share Posted June 24, 2022 (edited) I have ELH, STI uppipe, and a catless downpipe. My car sounds like absolute shit. when revs are going down. there's a range of about 1500-2000 rpms where it'ss raspy as hell. I hate it, but i'm too poor to change out hardware currently. Get a catted downpipe, get an exhaust. Just my 2 cents. Edited June 24, 2022 by bobglaub typo, rage was supposed to be range Link to comment Share on other sites More sharing options...
Pleides Posted June 25, 2022 Share Posted June 25, 2022 The smell of a catless exhaust is reason enough to not buy one. That shit isn't good for you. There's a reason you don't see incredible amounts of smog in LA now like you did in the 70s! Link to comment Share on other sites More sharing options...
whitexc Posted June 26, 2022 Share Posted June 26, 2022 ^^^This. Sent from my SM-G996U using Tapatalk Link to comment Share on other sites More sharing options...
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