PDA

View Full Version : Trapp for BMW R100R



mmmalmberg
07-27-2009, 11:57 PM
Looking for a slip-on to adapt for a '93 BMW R100R. The stock system is a two-into-one, with a 47 mm (approx. 1.85") outlet.

I'm interested in either the 4" x 17" S/C Elite (the longest with a 1 3/4" inlet) or one of the polished SS megaphones.

I prefer the look of the megaphones, but the lengths of some are not given and I can't tell what's the difference between the "4'' Meg 1.75'' ID, 12 Discs Polished SS", part # 426-17510, and the "SS MEG:1.75"ID,12 DISC,POLISHED,Q/CORE", part #476-17510. -??

Four More Questions:
1) Do all of these share the same core?
2) Is one quieter than another?
3) Would any of them be appropriate for a 1000cc twin, two-into-one system?
4) Would I be better of with a 2" ID unit? Then I could consider one of the longer ones, presumably quieter but heavier...

Thanks much,
Mark M.

hugger
07-28-2009, 11:52 AM
Looking for a slip-on to adapt for a '93 BMW R100R. The stock system is a two-into-one, with a 47 mm (approx. 1.85") outlet.

I'm interested in either the 4" x 17" S/C Elite (the longest with a 1 3/4" inlet) or one of the polished SS megaphones.

I prefer the look of the megaphones, but the lengths of some are not given and I can't tell what's the difference between the "4'' Meg 1.75'' ID, 12 Discs Polished SS", part # 426-17510, and the "SS MEG:1.75"ID,12 DISC,POLISHED,Q/CORE", part #476-17510. -??

Four More Questions:
1) Do all of these share the same core?
2) Is one quieter than another?
3) Would any of them be appropriate for a 1000cc twin, two-into-one system?
4) Would I be better of with a 2" ID unit? Then I could consider one of the longer ones, presumably quieter but heavier...

Thanks much,
Mark M.

Mark,

1. the 446 and the 426 cores are very similiar in design although the 446-1724core is longer than the core in the 426-17510, so the longer muffler is going to be quieter.

2. the 476-17510 has a Quiet core and that core has restriction built into it to make if quieter and does restrict some flow. This one would be the quietest but you would be sacrificing some mid to top end power.

3. I would recommend the 446-1724 or the 426-17510 for your BMW.

4. You could but the 1.75 is going to give you enough flow.

Mark, what you need to know is that SuperTrapps are the most quiet aftermarket mufflers on the street. At idle you probably won't even hear the engine.

I think we spoke yesterday and if you need more information email me at
hugger@supertrapp.com

Thanks, Gerry
446-1724
426-17510
476-17510