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Alright I installed my greddy evo tonight…..and well everything was self explanatory under there, well leaving my shop (that I work at) I noticed a little vibration under the car…so I go back to the shop and realize that part of the mid-pipe close to the cat will knock and hit under the car,………..just wondering how to adjust the pipes to make this stop it gets real bad under there……ps I bought it used but looks to be in great condition, the guy said it was for a coupe and it bolted right up, is there a slight difference in the coupe and sedan that might cause this???

 
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from what i remember, the evo for the sedan was just hanging too low on the coupe, i do not remember anything about it causing vibration. most likely, it is just vibrating on the heat shield, as does my tanabe and many other exhausts on our car when it rains. was it raining or anything when you left?

 
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yes it was, bso is there any way to stop it???

 
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im not sure if there is a way to stop it or not. ive just learned to ignore it when it rains. sorry man, im sure someone will respond that knows how to fix it.

 
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couldn't u get a big 0 ring thing, not sure whats its called
put some high temp insulator in between the 2 peicesof metal that are hiting and then tie it together so its tight and wont move?

 
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what many of people have done is jus to rip off the heat shield. they havent had any problems yet.

if you look in the problems forum, then you'll find a lot of these threads complaining of vibrations when it rains and such.

 
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Heat the hangers and bend them until it fits the way u like

 
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I work at a muffler shop. I see this kind of thing at least 2 times a week.
here is what to do.
This works best if you have access to a lift.

Take a 2x4 and jam it between the parts that hit. Then take a welding torch and about 1 to 1/2 feet away from the block, heat up the pipe all the way around til its glowing red and use a prybar to bend the pipe. Do this until you have a good 1/4 - 1/2 inch clearance.

 
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good call, catalyst i work at a shop and have access to a lift 24-7, ill try that soon, for a temp fix i've just bent the pipe away, and its not hitting the heat sheild its actually hitting the floorboard of the car

 
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if you do it right, it will work. I do it several times a week.

 
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The Greddy Evo has painted piping though, so heating it up like that will damage the finish. I'de mess with the hangers before trying that.

 
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just make sure the hangars are in their proper positions. You dont want to stretch out your hangars, because they will break. And that will cause more damage than messing up the finish that nobody sees.

 
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well i work at a shop and do work with a muffler shop down the road, i think ill just drop it off with him for a day and let him do it, that means no work for me and i know its down right

 
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Mine did that, I got under the car and just removed more of the "under car coating" where it was already rubbing off. So far haven't had any vibrations when it rains!