jdodd Posted March 25, 2016 Share Posted March 25, 2016 I have a M4 on the way but will be cutting my headers this weekend. My question is when you cut at the weld, on at least my pipe, there is still a small section of weld that will hold the pipe together once cut free from the cat. My understanding is I would cut this small section so I would have two separate pipes. Can anyone confirm I am correct? I cant find a picture of the end of the M4 that connects to confirm. Thanks, -justin Link to comment Share on other sites More sharing options...
Premium Member fz07fanboy Posted March 26, 2016 Premium Member Share Posted March 26, 2016 Cut the pipes right at the weld before the cat and separate both pipes. It will be fine. I have the M4 in mine too. Link to comment Share on other sites More sharing options...
jdodd Posted April 2, 2016 Author Share Posted April 2, 2016 So I am putting this together and I have a question. The pipe came with copper high temp anti-seize but no indication of where to use it. It says to put a bead of high temp RTV, which I have on hand, on the pipe. Link to comment Share on other sites More sharing options...
Premium Member fz07fanboy Posted April 2, 2016 Premium Member Share Posted April 2, 2016 So I am putting this together and I have a question. The pipe came with copper high temp anti-seize but no indication of where to use it. It says to put a bead of high temp RTV, which I have on hand, on the pipe. Put the anti-seize around the outside of the stock headers where the M4 exhaust will connect. Link to comment Share on other sites More sharing options...
jdodd Posted April 2, 2016 Author Share Posted April 2, 2016 What about the RTV they call for in the manual? Link to comment Share on other sites More sharing options...
rocket007 Posted April 2, 2016 Share Posted April 2, 2016 What about the RTV they call for in the manual? I used rtv on the end of the stock header pipes and the anti seize on the threads of the 02 bung and adapter. Link to comment Share on other sites More sharing options...
Premium Member fz07fanboy Posted April 2, 2016 Premium Member Share Posted April 2, 2016 You can use a little bit of the rtv to seal right where the header and M4 exhaust connect to deal from leaks and that's it. Link to comment Share on other sites More sharing options...
Fearedbynone Posted April 5, 2016 Share Posted April 5, 2016 you have a little play room also, if you cut it a bit too short. my headers went inside the slip on by about 1.5 to 2 inches. Link to comment Share on other sites More sharing options...
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