Exhaust sound mod

benv6 · Post by **benv6** » Tue Jul 25, 2017 12:02 am

Really tempted to do this mod on my zed, do you think it has any negative impact ?

https://www.youtube.com/watch?v=NYfZ5ZOW1cg

bob4333 · Post by **bob4333** » Tue Jul 25, 2017 7:48 am

OK, I'll go first.

No.

But I'm really on the fence as to whether it's worth it? Could go either way.

Do it - it's fairly mild and easy enough to put back!

greg81 · Post by **greg81** » Tue Jul 25, 2017 8:40 am

To me that sounds like someone took a drill to their Vauxhall Nova and put it straight through the box.

I think the car sounds lovely as it is!

benv6 · Post by **benv6** » Tue Jul 25, 2017 9:04 am

I mean are there any risks to the engine, fuel consumption ...etc ?

Smartbear · Post by **Smartbear** » Tue Jul 25, 2017 10:22 am

benv6 wrote: ↑Tue Jul 25, 2017 9:04 am I mean are there any risks to the engine, fuel consumption ...etc ?

I don't think moving the flaps to permanently open will affect the engine Ben.
Rob

Busterboo · Post by **Busterboo** » Tue Jul 25, 2017 10:31 am

So, no problem, Ben, but why lose a feature?

Leave it alone and you have a variable exhaust. Disable it and you don't.

coupedan · Post by **coupedan** » Tue Jul 25, 2017 12:25 pm

Golf Tee was very popular in the E46 330i days, basically the theory is that a vacuum line operates a butterfly valve in the exhaust. By blanking this vacuum line, the valve stays open all of the time and makes for a slightly louder experience.
There should be no negative side effects, apart from a bit more noise.. (I haven't watched the attached vid but if you Google Golf Tee mod you'll get loads of E46 posts)

R.E92 · Post by **R.E92** » Tue Jul 25, 2017 2:24 pm

I didn't realise there was still people out there with the vacuum line still attached

It's just a flap that lowers exhaust noise. The flap opens when you get above a certain RPM threshold or a certain pedal position.
It opens sooner when the roof is down.

I've had it unplugged for the last 3 and a half years. Gives a nice low rumble to enjoy while sat in traffic.

huytonman · Post by **huytonman** » Tue Jul 25, 2017 2:35 pm

I was surprised by how burbly my 35i sounded and only after coming across this mod did I check underneath and then had the explanation for what the little S shaped rubber tube was for that I found next to the battery..my car was done in tghe past and as far as I am concerned is better for it!
Keith

benv6 · Post by **benv6** » Tue Jul 25, 2017 2:41 pm

Will be done today I guess

Kingfisher · Post by **Kingfisher** » Tue Jul 25, 2017 5:30 pm

Your neighbours may no longer speak to you! ...

Maniac · Post by **Maniac** » Tue Jul 25, 2017 5:41 pm

I tried this. Then plugged it back in as while it's ok at rural speeds it increases drone on the motorway.

ronk · Post by **ronk** » Tue Jul 25, 2017 11:41 pm

I think it's ok in standard form !
Sometimes its better in a stealth mode but also very nice to be able to wake the dead in sports when the mood takes.

benv6 · Post by **benv6** » Wed Jul 26, 2017 12:34 pm

Done !!

On Idle, I haven't noticed much of a change !

When driving though, it is definitely louder .... I like !!

sunnydays · Post by **sunnydays** » Wed Jul 26, 2017 3:05 pm

Is it dramatically louder or just a touch? Debating doing this too

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