Quote:
Unless you are also going to have the bike remapped I wouldn't remove it. Also, insufficient backpressure can adversly impact midrange, & although EFI can be remapped to compensate, that situation can make carb tuning difficult.
+1 That restrictor is there to create back pressure at a tuned length (in a specific rev range). Remapping probably won't compensate for the lost power from removing the restrictor.
If you want more sound start cutting baffles from the tail end of the muffler. Or better yet get some aftermarket pipes that are proven to have great sound.
Cheers, Richard
~~~~~~~~~~~~
09 America, Staintune Pipes, K&N, Breathe, Hagon Nitros, AI & O2 removed, tune 20184 (modified), MTX-L a/f gauge
| 
