1. Aug 25, 2021 #1
   

   D7DPJ

   Hi All,
   
   Ive got a used Miltek decat to go on my rs 265. Currently the car has the Cobra 3" catback and the Miltek decat is also 3". Which gaskets do I use? Ive purchased the OE gaskets and im not 100% sure that they are right. the hole in the gasket for the decat to exhaust protrudes over the decat hole making me think its the wrong gasket.
   
   Your help would be great.
   
   thanks
   
   Dan

    
3. Aug 25, 2021 #2
   

   manugtt

   I use to fit the OEM ones and no problems. Only need to be careful in the decat-flex pipe part, it can be difficult to fit properly, but nothing hard.

    
4. Aug 25, 2021 #3
   

   D7DPJ

   I think this was the issue, I've ordered a oem gasket and this should be the fix

    
5. Aug 25, 2021 #4
   

   manugtt

   Can be. When I fit a 3" one, is the only point to be careful. Maybe it depends of the company, how it be finish. Sorry can´t help!

    
6. Aug 25, 2021 #5
   

   Lopes3d

   For reference I’ve got a CGR 3” decat with turbo/downpipe with oem gasket. And downpipe to miltek catback with oem gasket all fit fine

    

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