stage 2, well almost
so i got my uppipe in for safety and im getting ready to order a downpipe. first off i know im not a legit stage 2 untill i get a tune or a em tool. and i wanted to ask if its safe to run the DP without a tune. from what i know, i think it would cause no harm to my engine as far as boost etc. and im not just saying this to get outa paying for a tune, i am going to get one down the road i just dont have the cash atm. and yes i know i wont get the full power gains without the tune. i am going to get a catless dp. will i run into any issue's here with the o2 sensor or will it still funcion fine ? im thinking about getting the R*SR DP. i know some of you out there have one and i want to hear from you guys, how was fitment and how satisfied are you with it. my second option is the cobb DP. i know cobb is a good brand its just a little pricey. i know the quality of the cobb dp will be greater then the R*SR dp but is that the only advantage ? (yes the R*SR is a bellmouth.) as far as gaskets i know to get the oem ones. what about buying a used DP off a wrecked suby or something ? do you guys think it would be safe to use ? any other suggestions on DP's would be nice. lemme know what you guys are running with.
If you cant tell im driving a 04 wrx and i believe the turbo in the 04's are boost creep free ? so by running catless or highflow catted DP i wouldnt have to worry about boost creep, please correct me if im wrong.