where did you buy and did it come with any gaskets?

 

Speed Element. It came with a gasket for the cat side only. I have a spare one from my test pipe as well. None for the DP to O2 housing connection. Megan has given me plenty of gaskets for all of my exhaust flange pieces though...did they over look you?

 

When i bougt my Megan DP, it didn't come with a donut gasket. I forgot where i bought it from, but they said it fits right over the stock gasket. I never looked to see if there was a gap or not, because i left the under tray on while doing it =P

12k miles later, the car is still perfect.

 

I just installed my Megan DP yesterday. The gasket in the O2 housing was stuck to it so I just slipped the new DP over it and it is fine. I didn't even have to take it off. The undertray actually took the longest amount of time. Maybe 1.5 hours. Downpipe came off and on in maybe 30 minutes.