Installing flaps on JHM exhaust?

[AudiYes]

Hey - I love my JHM exhaust. But sometimes I'd like to drive with it much quieter. Is there a way to retro fit exhaust flaps onto the JHM exhaust? I would love JHM to chime in on this if this will affect the engine in a negative way or perhaps any suggestions?

Thank!

[Noggy0311]

Also interested. I'm assuming any solid exhaust or fab shop could do it. I wouldn't think that it would affect the performance too much since it'll be restricting the flow so far away from the engine but I'm not an expert in that area so my guess is as good as yours

[jmcS4]

assuming you guys have B7's right???? this may sound odd or spot on but i've ran the B7 JHM quad exhaust on my B6 and the single tips. the quad is a lot louder than the single tips for some reason. just throwing that out there not saying you should switch over to odd looking single tips on a B7

[JimmyBones]

I seriously looked into this for someone local to me and they were going to have me do it until something happened with the car. Sorry but I can't say any more about the person or car because they don't like personal stuff posted. However on the topic of adding flaps. There are vacuum operated flaps sold by a bunch of companies and I saw a bunch on Ebay for cheap. I was going to get two normally open flap units in the correct diameter. The ones that I saw come as full plate (like a throttle plate in a throttle body) so I was going to drill a lot of holes in it. That way the exhaust can still go through when the flap is closed but it would quiet things down. When the flap is open the exhaust would be full volume and flow for max power and sound. Yes the middle of the flap would still partially be in the way with the flap open but that minor flow restriction wouldn't be worth worrying about. Remus exhausts do something similar on some of their exhausts but I think that it is a manual adjustment so you have to get out and crawl under the car to open/close the flaps.

Also interested. I'm assuming any solid exhaust or fab shop could do it. I wouldn't think that it would affect the performance too much since it'll be restricting the flow so far away from the engine but I'm not an expert in that area so my guess is as good as yours

There would be a power restriction with the flap closed but such is the trade off for a quieter exhaust. I try to keep as few restrictions in an exhaust as possible and it is bad to have restrictions that far away from the engine.

[melomandn]

Funny that this came up, Ive been looking into this the last couple weeks but I want to go the opposite direction.

Has anyone added valves in front of the mufflers/resonators on a JHM exhaust? I love my noise now, but sometimes I just want to let the V8 scream.

My thought was to install something like this:
http://www.siliconeintakes.com/dsm-i...ve-p-9577.html

[DRKSDE_S4]

Funny that this came up, Ive been looking into this the last couple weeks but I want to go the opposite direction.

Has anyone added valves in front of the mufflers/resonators on a JHM exhaust? I love my noise now, but sometimes I just want to let the V8 scream.

My thought was to install something like this:
http://www.siliconeintakes.com/dsm-i...ve-p-9577.html

thats funny ive been thinking the same thing just been looking for a set of good ones. im debating where to install the switch.