I'm with you brother, I assumed it would be exactly the same length as the factory pipe with resonator. Have you attempted to contact Corsa? 14758 is the correct part # for a Raptor SuperCrew so it would seem they dropped the ball. Good luck to you.
I filed a tech support request on the web site and the next day someone contacted me via E-mail. We've traded several E-mails back and forth and they are trying to work with me on this issue.
Here is what I learned...
If you are familiar with the OE resonator you know there is a locating "L" slot cut into the expanded outlet end. This fits into a small steel button welded onto the OE muffler inlet pipe. It serves to lock the system together and prevent rotation.
The Corsa pipe is designed to butt up against the button. I could not find any reference to this in the installation instructions though. In my effort to make the install as OE as possible I added (modified) the L slot to the Corsa outlet effectively shortening the system. I should have test fit first! My bad
I'm now questioning if I observed the rest correctly as it was cold in the garage that day. I swear the slots cut into the OE muffler inlet went well past the end of the Corse pipe so it would have leaked any ways. I actually made things better by getting the Corsa pipe to fit further onto the OE muffler.
Corsa has been very good in working with me to figure this out, even offering to send a new pipe. Problem is this pipe is correct to spec and I've modified it so that make it hard for them to reuse or resell.
I'm going to take the OE resonator off again and fit the Corsa pipe again to make sure I was looking at things correctly. Maybe it will fit if I do it three times ;-)
My intention was to use this pipe in the interim until I get the SW muffler I want. I was going to cut the Corsa pipe instead of the OE resonator as required. Maybe I'll just order that now!?
