weird stock muffler?

[shaughan]

Hiya, My 96 RS-B has this electronically controlled (via the boot) muffler on it, theres a cable that pulls a plate shut at low revs, then opens at full throttle - my mechanic mate thinks its for noise or emmisions control in Japan. Has anyone else seen this on an RS? Ive currently vice gripped the cable open fulltime, the exhaust sounds better and the car seems to pick up better too. I think my pipe diameter is 3", whats the best muffler to get a decent rumble and good (legal) flow if I chop out this weirdo muffler?

[Guest]

it has something to do with the back pressure so ive been told, i have the same thing on my '99B4.

I always wanted to route the pipe with the vavle on it to the other side of the car, look like twin pipes but would only open a high revs.

[Joker]

yep thats stock alright and pretty rare for them to still be there, I still have the motor in boot and it works but butterfly is long gone in japan before import

[Guest]

I took them a while to find my car, I imported it myself and specifically requested full stock. I could have got a modified one for about 4g less with lower k's. But i like to do things myself, why let someone else do the hard work for me.

[ReubenH]

Yep, i still have my motor. I had to un-plug it cause it was making noises.

[RSB]

Yeah my 98 RSB still has the motor+stock muffler.

[shaughan]

Not a bad idea, man. If the car doesn't sell I may do that. Im kind of hankering for a deeper rumble than this stock muffler gives out though, so the car may end up with a catback or just a new muffler to make some noise lol.

 keltik said:

the weirdo one is pretty cool. A lot of members have the solenoid to activate it in place but dont have the muffler. If your feeling adventurous you could always grab a solenoid and wire the muffler up to work off a secret switch. Then youll have stealth mode for cop stops and wofs

[RSB]

Oh, and instead of vice grips (which can fall off, look ugly, and damage the cable) theres another notch further up on the plate the cable attaches to. Simply detach the cable, pull it taught, and move it up there.

[shaughan]

Ah yeah, about thirty minutes after I posted the videgrip thing thats exactly what I did lol. Im trolling trademe for a good muffler and/or backpipe to replace it with, even if the car sells I figure most buyers will be looking for a decent (leagl) suby rumble, mine sounds way too muted until you put the pedal down.