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Wrong size FMF sent! Please help

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Hi last summer I ordered the fmf powerbomb and just recently was able to secure the Q4 muffler. When I just tried to fit the two together they are almost the same size. The outside diameter of the header is about 3.4 and the Q4 about 3.6 measured with a 6 inch ruler so not exact. So my question is which one is wrong? Does the Q4 fit inside the header? I was wondering if anybody could give me a rough diameter estimate so I could guess which is the wrong one. I will attach a few pics so I hope that helps. Thank u for any advice

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Hi last summer I ordered the fmf powerbomb and just recently was able to secure the Q4 muffler. When I just tried to fit the two together they are almost the same size. The outside diameter of the header is about 3.4 and the Q4 about 3.6 measured with a 6 inch ruler so not exact. So my question is which one is wrong? Does the Q4 fit inside the header? I was wondering if anybody could give me a rough diameter estimate so I could guess which is the wrong one. I will attach a few pics so I hope that helps. Thank u for any advice

Try pulling the sleeve out of the muffler.

That should do it.

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Try pulling the sleeve out of the muffler.

That should do it.

 

you beat me to it !!! ....  :goofy:

 

The sleeve is for using your stock header and just slipping it on. 

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The Q4 ships with a reducer in the mid pipe so it can be used with the stock header. See if it has one and pull it out......you should be good then.

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