Just like the title says, will the dual cat y pipe that works with hedman headers # 68491 fit on slps 1 5/8 shorties?

Its a gamble, As I am not confident in the dimensions
of the ball & socket fittings on the SLP and the Hedman
Y-pipe. Nor, do I think they are designed to fit the same
way.. someone might chime in on that.

Worse case scenario, go to your local muffler/performance
shop and they can make one for your application.

I had a problem with my Hedman Y-pipe on my 68481 Kit.
The Headers and Y-pipe werent the greatest fit at first,
The Y-pipe was snugged on to my body pan, not healthy..

Had 'em make a new one, I paid $180 for new Y-pipe
and 3" pipe from the Headers all the way back to the
rear.. Best recent investment Ive done!

Good luck