Switchable Exhaust
 

Looking to replace my non switchable y-pipes (Q&Q II) with a silent choice type setup and would appreciate any guidance/experience you guys have:

Looks like I have 3 choices; Corsa Q&Q + (electric solenoids, on/off), IMCO Sound Advantage (electric jack screw, variable positions) or Hardin Sound Selection (air operated).

I'm assuming all have pros/cons; what are they and which would be the most logical system for my SBC powered boat?

Keep in mind that many states have outlawed switchable exhausts and any form of cutouts. The boat must meet the dB test in a fixed configuration.

Yes, I'm aware of that. Since the vast majority of our boating is in KY which allows them I'm ready to pull the trigger, just don't know which system to go with.

Corsa's Captain's Call.

I'm looking at this set, much cheaper than corsa, but I can't find reviews

http://cgi.ebay.com/ebaymotors/Seate...spagenameZWDVW

I have a set of cmi y pipes that I will sell cheap.

918-232-3503
Dustin

i bought some of the ebay ones. they are pretty light weight material and I was missing a part off of one. They never did replace it. For the price they will work for me for the project I bought them for. I bought 3 sets for me and a buddy and paid $300 each I think. I would probably spend more $ and get a name brand next time.

at $300 a set you are talking less than half of Corsa. Would you still go name brand with that in mind?

I saw this but not really looking to "go cheap". I want something reliable and if it costs more, oh well. Going with an unknown would probably cost more in the long run anyway.

Corsa seems to have much of that market, I'm just not crazy about the solenoids sitting there pulling juice all the time. The Hardin system looks similar to what Mercruiser used to use. The downside there is complexity; the pump and all that plumbing looks to be a problem waiting to happen. That leaves me with the IMCO system which I've never seen but I like the idea of a jackscrew setup where they're only drawing juice when moving.

What to do, what to do.....

The cmi has a air pump.

I have 2 sets of Corsa's with y-pipes, diverters, boots, electrical solenoids and harnesses. I pulled them out of my boat with my old engines (can't use wet exhaust anymore).

Let me know if you're interested, I'm not exactly using them right now, so I'll sell them cheap!

Corsa :D

Electric all the way!
Air leaks, unless the air is set up that with no pressure they are fully open, when closed you can tell if they slowly open.

Screw type take way to long to close! Especially anoying when you want it closed NOW for the authorities!

I have electric on my Teague tips and they are adaquate.

Other than the length of time it takes to close the screw types are there any disadvantages? My boat isn't that loud (small block, wet exhaust), I just want to be a good neighbor around the docks and be able to communicate with skiers in the water.

Right now I'm leaning towards Corsa but haven't quite ruled out IMCO.

Let me know how much you're wanting for them...

I had the Sound Advantage from Imco on mine.
I just disliked the time delay
As well I guess they did leak out of the pivot point. There is a plastic sleeve that the pins are in, others have commented on the leaking as well
If you live in an area that does not allow switchable, then these stick out in the open and are more easile to see. Same as the Corsa.
I just removed the diverters, plugged the holes and then went with switchable tips from Teague.
Kept the y-pipe intack and basically use it as a sound dampening chamber :)

I actually heard good things about them so far. A guy over on donzi.net said they are set up like power antenna motors (very reliable screw drive) and a big benefit is that they are not an open / closed system like corsa. They are set up so you can open / close them as little or as much as you want. so, you can go from full loud to kinda loud to quiet.

I'm not a cheap person by any means, but I also hate throwing money at a name brand just because. This particular off brand seems perfectly fine. there really isn't much to any of these systems.

Looks like $480 plus another $89 shipping. Similar in design to the IMCO setup if I'm reading it correctly. Odd that they have 2 switches don't you think?

You're right; there isn't much to these things. If I could find a manual version with a push/pull cable (like an old manual choke) I'd be all over that. The less to break the better!

The 2 switches are a bit odd now that you bring it up, but I guess it makes the system even more simple to keep the wiring of each one totally separate. I guess it also makes it easy to synch them back up if they ever get out of synch somehow.

I understand from other people that they can be bought for much less if make them an offer. I think you can get them to knock $100 off the price.

What kind are these?

Look's like Gaffrig muffler. Don't know if they make them any more.

Switchable Exhaust
 

I spent what I would consider to be Big $$ on switchable as my boat only came with thru hulls and was really far to loud for me for all the idling I have to do up canals and such. Had I known then that I could have gotten turn downs for 1/4 the price, I would have gone that route. Besides the Corsa system, I had to locate two sets of TRS elbows and all the other parts that bolt to the inner transom plates and each engine had two of these. Not as simple as a single Y-pipe. I have Corsa's and love them but keep thinking that when I am on plane mostly have them switched on (loud) and when off plane have them off. The turndowns would be quieter than corsa's switched off and would have NO MOVING PARTS other than flappers. And would achieve the same operational effectiveness for my mostly stock engines. The only drawback is that the turn downs look funny on the back of the boat, but in my case, you really can't see the pipes because of the swim platform I added anyway.

I have had the Corsa system since 2003 and it has worked flawless in my salt water environment well so far, but if they fail, I will go back to straight pipes with turn downs for certain.

I looked into that option too but dismissed it for 2 reasons; I already have the bullhorn going to the drive so only need the y-pipes which puts me at less than $1k cost, and would like the option of running in stealth mode. I know I probably shouldn't make any WOT runs that way but at 2,500rpm pulling a skier it shouldn't be a problem, especially for my anemic little small block.

Glad to hear you're not having problems with the Corsa system; very close to going that route.

Sent you a PM about a set I have for sale