Jack8745 Posted February 4, 2009 Author Report Share Posted February 4, 2009 Since you are in California, you might want to consider a cat that is CARB-compliant. The Magnaflow 46009 (3" in/out) is what I used. It will cost more than a non-CARB cat, though. I found a coupon code online somewhere and got 20% off on it at Kragen Auto. Smog checks look for the letters "CARB" (California Air Resources Board) stamped on the bottom of the cat. Alright well, at least they're supposed to . . . . thanks but im smog exempt Mine's a little loud, but then again I'm running without a resonator. hmm i might just get it anyways :ph34r: Link to comment Share on other sites More sharing options...
Alboguy Posted February 5, 2009 Report Share Posted February 5, 2009 iam running the magnaflow cat and no mufflers its not that loud :lol: :lol: Link to comment Share on other sites More sharing options...
EdubT5m Posted February 5, 2009 Report Share Posted February 5, 2009 obx dp + $50 ebay cat w/ o2 bung Link to comment Share on other sites More sharing options...
7 VII 7 Posted February 5, 2009 Report Share Posted February 5, 2009 obx dp + $50 ebay cat w/ o2 bunggosh I hope that is not welded yet because it dont look so hot Link to comment Share on other sites More sharing options...
ozzimark Posted February 5, 2009 Report Share Posted February 5, 2009 I'm running this one with my OBX dp, have had no CEL issues what so ever in the few months it's been on......OBX dp outlet flange was hacked off and it was welded on....fitment was pretty damn close to perfect.......my rear o2 sensor is positioned angled in right before the guts in the cat. That is the stock rear o2 bung stolen out of my stock cat.Correct me if I'm wrong, but isn't the rear O2 supposed to go behind the cat? :huh: Link to comment Share on other sites More sharing options...
7 VII 7 Posted February 5, 2009 Report Share Posted February 5, 2009 Correct me if I'm wrong, but isn't the rear O2 supposed to go behind the cat? I thought so also :arob: Link to comment Share on other sites More sharing options...
7 VII 7 Posted February 5, 2009 Report Share Posted February 5, 2009 so... ceramic or metallic core? Link to comment Share on other sites More sharing options...
ozzimark Posted February 5, 2009 Report Share Posted February 5, 2009 I thought so also I suspect that he's not getting a CEL because of the angle. The ECU checks for differences between the front and rear O2 signal, and does some magical unknown math to determine whether or not the cat is functioning properly. Since it's at an angle, the readings may be significantly different (slower changes I guess)... Link to comment Share on other sites More sharing options...
InitialDriveGTR Posted February 5, 2009 Report Share Posted February 5, 2009 anyone have pics of the full exhaust put together but not installed in the car? also wha o2 sensor spacer do you use? Link to comment Share on other sites More sharing options...
EdubT5m Posted February 5, 2009 Report Share Posted February 5, 2009 yep its welded on. and it looks fan freakin tastic on there fyi lol Link to comment Share on other sites More sharing options...
Jack8745 Posted February 5, 2009 Author Report Share Posted February 5, 2009 I suspect that he's not getting a CEL because of the angle. The ECU checks for differences between the front and rear O2 signal, and does some magical unknown math to determine whether or not the cat is functioning properly. Since it's at an angle, the readings may be significantly different (slower changes I guess)...magical ferry dust is then sprinkled thought the injectors to make the engine runmagical ferry dust is then sprinkled thought the injectors to make the engine runEDIT: he must have a rear o2 - i dont see how he would not get mil with that being a rear 02 i think he just used the flange from his stock rear 02 Link to comment Share on other sites More sharing options...
7 VII 7 Posted February 5, 2009 Report Share Posted February 5, 2009 anyone have pics of the full exhaust put together but not installed in the car? also wha o2 sensor spacer do you use?yeahandspacer Link to comment Share on other sites More sharing options...
Jack8745 Posted February 5, 2009 Author Report Share Posted February 5, 2009 spacer ? really? :tdown: Link to comment Share on other sites More sharing options...
InitialDriveGTR Posted February 5, 2009 Report Share Posted February 5, 2009 thank you dave, thats exactly what i was looking for. I'm putting my obx in tomarrow night when I go back home and wanted to get an idea on what i'd be doing, The space is 18mm? Link to comment Share on other sites More sharing options...
Jack8745 Posted February 5, 2009 Author Report Share Posted February 5, 2009 god damn california crapola ahhhhi cant ship the catco cat to california god damn it Link to comment Share on other sites More sharing options...
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