beeker Posted November 22, 2013 Share Posted November 22, 2013 I'll start by saying that I'm new to subarus and modding in general but anyway... I picked up a greddy evo 2 cbe from a forum member and I absolutely love it! The one problem I'm having is it rattles at mid rpm range 1st through 3rd.. I used the stock hangers, bolts and nuts when we put the greddy in.. the only exception were the two bolts with springs that connect the stock mid pipe to the stock downpipe. We also reused the gaskets between each section of the exhaust but they looked to be in good condition. At least to me... I've tightened and re-tightened every bolt but the rattle still persists. why why why!? The greddy is an amazing sounding exhaust but this eff'ing rattle makes it sound a little ghetto Any advice or troubleshoot tips would be greatly appreciated! Link to comment Share on other sites More sharing options...
chato Posted November 22, 2013 Share Posted November 22, 2013 can you tell what part of the exhaust the sound is coming from? could be an internal baffle that's weld came loose. could be a cat disintegrating. could be a heatshield with improper clearance. could be a ton of things. sound clip would be the most helpful. Link to comment Share on other sites More sharing options...
beeker Posted November 22, 2013 Author Share Posted November 22, 2013 Thanks for the quick reply could be a car disintegrating. That doesn't sound good. I want to say is coming from the drivers side rear but I could be wrong. I don't have easy access to a lift and I'm hesitant to crawl under a running car while its on jack stands. I'll get a video clip up in an hour or so. Link to comment Share on other sites More sharing options...
12sechatch Posted November 22, 2013 Share Posted November 22, 2013 If the sound was not present before you put the cat-back on, I would assume that is is baffling that has come loose in the muffler (the main downfall to buying used mufflers). If you take the muffler off and shake it around, you might be able to hear small pieces of metal rattling around. That is assuming that is the cause. Link to comment Share on other sites More sharing options...
chato Posted November 22, 2013 Share Posted November 22, 2013 *meant cat disintegrating, not car. the difference a letter makes. Link to comment Share on other sites More sharing options...
JmP6889928 Posted November 22, 2013 Share Posted November 22, 2013 Did you upend each pipe and make sure that there were no nuts or bolts inside of them before you installed them? Link to comment Share on other sites More sharing options...
beeker Posted November 22, 2013 Author Share Posted November 22, 2013 If it turns out to be the baffling, does anybody know if that is fixable with this exhaust? Link to comment Share on other sites More sharing options...
beeker Posted November 22, 2013 Author Share Posted November 22, 2013 I did not check for random parts and bits floating around in the exhaust before we installed it. Never would have thought to check for that lol Link to comment Share on other sites More sharing options...
chato Posted November 22, 2013 Share Posted November 22, 2013 if you know a good welder they can perform surgery. but it probably won't be pretty. Link to comment Share on other sites More sharing options...
beeker Posted November 22, 2013 Author Share Posted November 22, 2013 Here is the sound clip. I don't have speakers or headphones and I can only listen to it on my phone so I hope this helps. https://www.youtube.com/watch?v=7ydSFNgLuqM Link to comment Share on other sites More sharing options...
chato Posted November 23, 2013 Share Posted November 23, 2013 hard to tell if its inside or outside the exhaust from the vid. can you isolate what part of the exhaust its coming from? otherwise a great looking/sounding exhaust Link to comment Share on other sites More sharing options...
beeker Posted November 23, 2013 Author Share Posted November 23, 2013 I'll be getting it up on a lift tomorrow morning so I'll try to isolate the rattle and post my findings. I guess I was underestimating my resources when I said I don't easy access to a lift Link to comment Share on other sites More sharing options...
mdzowner Posted November 23, 2013 Share Posted November 23, 2013 i used to have this exhaust and had a similar issue, just check all of your heat shield-looking parts. suprising what rattles under there. i just removed mine and it was fine. also double check your clearances around the sway bars etc. Link to comment Share on other sites More sharing options...
subiebeast22 Posted November 23, 2013 Share Posted November 23, 2013 Mine is doing the same thing. I have the Perrin cbe. It turns out it was the bracket from the transmission to the down pipe. The bolt had come out and now my exhaust makes a similar rattle. Link to comment Share on other sites More sharing options...
beeker Posted November 24, 2013 Author Share Posted November 24, 2013 So this is only a little embarrassing but it turns out one of the bolts on Y pipe to drivers side muffler was missing thanks for the help guys Link to comment Share on other sites More sharing options...
nick916 Posted January 15, 2014 Share Posted January 15, 2014 Hey Beeker! just saw this hope the exhaust is working out alright. I had my exhaust guy removed any metal bits and check everything before I took it off for you. I def didn't have any rattles before I took it off. Glad to see it looks like it's working now. -Nick Link to comment Share on other sites More sharing options...
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