Bret Posted December 14, 2009 Share Posted December 14, 2009 I was thinking about getting an aftermarket uppipe and wondered what the best one was or if I could get similar results with an 07-09 OEM or an STI? Just want some honest opinions. Thanks. Link to comment Share on other sites More sharing options...
Bret Posted December 14, 2009 Author Share Posted December 14, 2009 FYI I already have a COBB AP and COBB DP. Link to comment Share on other sites More sharing options...
LosAngelesLGT Posted December 14, 2009 Share Posted December 14, 2009 Can you define "best" one? Best is really a matter of opinion. IMO the "best" one is the one that does the job well for the cheapest amount of money. On Ebay there is an up for 10-20$+20$ shipping that another member is running and it seems to be working great. IYO the "best" one may be the one that costs $300 and gives you spool 100rpm sooner or whatever. A lot of people seem to be running sti up. Link to comment Share on other sites More sharing options...
StoplightAssassin Posted December 14, 2009 Share Posted December 14, 2009 just get a used one off of the member classifieds...I would get one w/o a flex section or you can gut your stock pipe Link to comment Share on other sites More sharing options...
m sprank Posted December 15, 2009 Share Posted December 15, 2009 Want my stock 08 SpecB uppipe? Its from a SpecB so its worth at least 10HP, lol. I tried the $30 delivered uppipe from eBay and it fit with no leaks and its SHINY, lol. I dont think any are "best". I run a Cobb now, but its more for "bling" than anything (and its not shiny). Link to comment Share on other sites More sharing options...
Boostin1657615274 Posted December 16, 2009 Share Posted December 16, 2009 ^ that would be your best bet. On the search for a new DD... Link to comment Share on other sites More sharing options...
keithk831 Posted December 16, 2009 Share Posted December 16, 2009 Want my stock 08 SpecB uppipe? Its from a SpecB so its worth at least 10HP, lol. I tried the $30 delivered uppipe from eBay and it fit with no leaks and its SHINY, lol. I dont think any are "best". I run a Cobb now, but its more for "bling" than anything (and its not shiny). How does that compare to the sti uppipe? I may be interested if he isn't. Link to comment Share on other sites More sharing options...
McDowell Performance Tunin Posted December 16, 2009 Share Posted December 16, 2009 I have an sti up. It looks almost identical to the LGT's (with the heat shields on) and has the exact fitment. What I like about the STI's pipe is there is not a egt bung. Just use a resistor to put in the plug to fool the ecu. Plus, it looks stock so it is much easier to pass inspections. www.facebook.com/mcdowelltuning [sIGPIC][/sIGPIC] Click Here for Stage1, Stage2 and Stage3 Tuning and eTuning Info Link to comment Share on other sites More sharing options...
m sprank Posted December 17, 2009 Share Posted December 17, 2009 No EGT bung in the OEM uppipe I have. I have 2 two 2008 Legacys. Both have uppipes with no cat and no EGT sensor. I think the EGT sensor went away with the cat. I think the OEM uppipe I have is the same as an STi. It came off my 08 SpecB. My 08 5EAT still runs the OEM uppipe. Link to comment Share on other sites More sharing options...
jfg22557 Posted December 17, 2009 Share Posted December 17, 2009 I would get one w/o a flex section gotta say I disagree here. mind you, I'm aware alot of cheap flex up's can have leak issues at the flex section. However the flex does assist in flange leakage prevention due to it's forgiving characteristics, allowing the flanges to line up more directly versus a traditional rigid strait pipe. If you want a true quality up pipe with flex, I'd go with the grimm speed. Very popular, good reviews, got one myself with a 38mm tial ewg waiting for my build to commence. just my .02 Link to comment Share on other sites More sharing options...
dudeondacouch Posted December 17, 2009 Share Posted December 17, 2009 flex in the UP ftl. not smashing flex sections, but the UP is simply NOT the place for it. all IMHO. Link to comment Share on other sites More sharing options...
keithk831 Posted December 17, 2009 Share Posted December 17, 2009 I have read threads on this forum about exhaust leaks due to poor fitment of a solid UP. I hear flex is the way to go. Granted it may not flow AS good as one without a flex section, but you won't really feel a difference. Flex FTW! Link to comment Share on other sites More sharing options...
dudeondacouch Posted December 17, 2009 Share Posted December 17, 2009 it's not about the flow. it's about the fact that a flex section is a weak link. anything happens to a flex section after the turbo, you simply fix it. something happens to a flex section pre-turbo, you're buying a new turbo. Link to comment Share on other sites More sharing options...
keithk831 Posted December 17, 2009 Share Posted December 17, 2009 Oh, I agree with you there. I recently asked about the eBay ones w/ flex sections. I hear the cheap ones can break apart and cause issues with turbos. But the nicer ones, like the name brands (grimm, etc) or an OEM sti uppipe have a higher quality flex section that will last. Again, i'm just telling you what i've found from researching the boards. I'm no expert by a long shot :-) Link to comment Share on other sites More sharing options...
dudeondacouch Posted December 17, 2009 Share Posted December 17, 2009 the catless OEM UP (sti, or '07+ LGT) does NOT have a flex section. It is OEM though (made by Bosal, in reality), so fitment should be perfect and it has the stock-type heatshields. I have an Invidia UP (no flex) and it fit like a glove. Link to comment Share on other sites More sharing options...
jfg22557 Posted December 17, 2009 Share Posted December 17, 2009 I have read threads on this forum about exhaust leaks due to poor fitment of a solid UP. I hear flex is the way to go. Granted it may not flow AS good as one without a flex section, but you won't really feel a difference. Flex FTW! Link to comment Share on other sites More sharing options...
keithk831 Posted December 17, 2009 Share Posted December 17, 2009 Hmm...good to know! Link to comment Share on other sites More sharing options...
m sprank Posted December 17, 2009 Share Posted December 17, 2009 Flex is only as good as the material it is made from. Search nasioc and you will find lots of posts about cheaply made flex sections disintegrating into the turbo. I would be weary of cheaply made headers and uppipes that contain flex steel. If you read the flex manufacturers requirements for length compared to ID in order for the flex to work you would find that many pipes use a flex section too short to actually perform as intended. My 2 cents. Link to comment Share on other sites More sharing options...
dudeondacouch Posted December 17, 2009 Share Posted December 17, 2009 to the OP: get the OEM catless. you'll be happy w/ it. /thread Link to comment Share on other sites More sharing options...
jfg22557 Posted December 17, 2009 Share Posted December 17, 2009 Flex is only as good as the material it is made from. Search nasioc and you will find lots of posts about cheaply made flex sections disintegrating into the turbo. I would be weary of cheaply made headers and uppipes that contain flex steel. If you read the flex manufacturers requirements for length compared to ID in order for the flex to work you would find that many pipes use a flex section too short to actually perform as intended. My 2 cents. slightly confused as to weather you just didnt notice what I wrote or are interpreting it backwards? gotta say I disagree here. mind you, I'm aware alot of cheap flex up's can have leak issues at the flex section. However the flex does assist in flange leakage prevention due to it's forgiving characteristics, allowing the flanges to line up more directly versus a traditional rigid strait pipe. If you want a true quality up pipe with flex, I'd go with the grimm speed. Very popular, good reviews, got one myself with a 38mm tial ewg waiting for my build to commence. just my .02 The group of us here in this thread may have different opinions between whether to go with or w/o flex, but I think we all understand what were talking about lol Link to comment Share on other sites More sharing options...
scoobydoobie Posted December 17, 2009 Share Posted December 17, 2009 I'm happy with my Grimmspeed UP Link to comment Share on other sites More sharing options...
Mega Users LieutenantDan Posted December 17, 2009 Mega Users Share Posted December 17, 2009 I've got an STi uppipe. End of story Link to comment Share on other sites More sharing options...
m sprank Posted December 17, 2009 Share Posted December 17, 2009 slightly confused as to weather you just didnt notice what I wrote or are interpreting it backwards? The group of us here in this thread may have different opinions between whether to go with or w/o flex, but I think we all understand what were talking about lol no not confused. you mentioned leaking. my comment had nothing to do with leaks. i was simply stating the known issue of the flex material disintegrating over time and destroying the turbo. Link to comment Share on other sites More sharing options...
jfg22557 Posted December 17, 2009 Share Posted December 17, 2009 I'm happy with my Grimmspeed UP nuff said;) Link to comment Share on other sites More sharing options...
boosted subaru Posted December 17, 2009 Share Posted December 17, 2009 Does anyone have experience with the solid ebay uppipe? I was thinking about giveing it a shot. Hows the fitment? Does it have any leaking issues? Link to comment Share on other sites More sharing options...
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