RIPB.88 Posted July 24, 2015 Share Posted July 24, 2015 Hey guys sorry if this isn't in the right place, but I couldn't find a thread with the aiv cat. The line that runs from the filter to the cat is split right where it should bolt to the cat. It sounds like a blowoff valve almost when I let off the throttle. I don't have to worry about emissions testing here so I've been pondering deleting it. What should I do with that line? Does it need to be crimped or sealed shut somehow? How much of that whole system can I remove? And lastly, does it make the exhaust any louder with the cat gone? Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
RedPath88 Posted July 24, 2015 Share Posted July 24, 2015 Sent from my iPhone using Tapatalk Duplicate topic removed. Please ignore future Tapatalk errors when posting. Just refresh your view and you will find that the content was successfully posted. Link to comment Share on other sites More sharing options...
RIPB.88 Posted July 24, 2015 Author Share Posted July 24, 2015 Sorry RedPath I'll try to make sure I don't do that again. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Kingman Posted July 25, 2015 Share Posted July 25, 2015 (edited) If you bypass the AIV you can leave the line as it is. I removed it along with the emissions stuff though. It's only function is to inject fresh air into the cat. And yes, the exhaust will be louder if you remove the cat. Edited July 25, 2015 by Kingman 2 Link to comment Share on other sites More sharing options...
RIPB.88 Posted July 30, 2015 Author Share Posted July 30, 2015 If you bypass the AIV you can leave the line as it is. I removed it along with the emissions stuff though. It's only function is to inject fresh air into the cat. And yes, the exhaust will be louder if you remove the cat. Have you noticed any performance improvements at all? Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Kingman Posted July 30, 2015 Share Posted July 30, 2015 From the AIV? No. Cat was some but nothing drastic. Link to comment Share on other sites More sharing options...
RIPB.88 Posted August 3, 2015 Author Share Posted August 3, 2015 From the AIV? No. Cat was some but nothing drastic.Cool, thank you. Hopefully I'll get to it this weekend. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
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