Restrictors

[SunnyD]

Just got the exhaust done on my r33 gts and noticed it had a restrictor in the pipes. Was wondering if their were anymore like this that should be removed

[KiwiRS4T]

Very common on Japanese brand name mufflers. When you say you had it "done" what does that mean? You had a new one installed, or your old one repaired? Did the shop run the proposed set-up by you? Restricting a 3in system down to a 2 1/2 in muffler is a total waste of money. You need to lose the restriction.

[SunnyD]

Got

14 hours ago, KiwiRS4T said:

Very common on Japanese brand name mufflers. When you say you had it "done" what does that mean? You had a new one installed, or your old one repaired? Did the shop run the proposed set-up by you? Restricting a 3in system down to a 2 1/2 in muffler is a total waste of money. You need to lose the 

Got a whole new piping system

 

[GTSBoy]

To answer your question, there will likely only be the one. If you made the mistake of buying a Japanese street legal system (JASMA approved) then it pretty much will have to have a 2.5" restrictor in it.

Just one more reason why most of us on here who give advice on such things tell people to choose 2x good mufflers and get their local good exhaust shop to build an exhaust.

[tridentt150v]

Some restrictors are slip in and you just unbolt them...just check if yours is like this before dragging out the 9" angle grinder.