View Full Version : Need help with a slip-on for an HD Evo Springer

09-27-2009, 10:58 AM
I'm rebuilding a 1999 HD Evo Heritage Springer FLSTS and am going to go with a 2-into-1 exhaust. I already have the headers and am now looking for a single fishtail muffler. My indy highly recommends Supertrapp and has suggested p/n 628-78056. Unfortunately, this part number is for a pair of mufflers and I only need one. Is there any way to purchase just one of these mufflers?

09-28-2009, 08:47 AM
Yes, contact our Customer Service Department between 8am-5pm EST Mon-Fri.
Be prepared with the part number from the headpipe you have, (assuming it is a SuperTrapp), you will find the P/N stamped near the end of the collector.

09-28-2009, 07:18 PM
The headpipe is a 2-into-1 set from Paughco, p/n 733C3 as seen here:


It has a 1 3/4" pipe. Do you know if your disc muffler from kit 628-78056 will fit these headers? Thanks again.

09-29-2009, 07:44 AM
The inlet diameter of the muffler in query is 1.75"; however will there be muffler mounting issue, we have no way of telling.

09-29-2009, 08:30 AM
Would it be possible to get a copy of the installation instructions or pictures of the right muffler so I can see how it mounts up? I may just have to fabricate a custom bracket. Thanks.

09-29-2009, 09:20 AM
You can download the instructions off of the website;