Vacuum vs Electric muffler valves

[slowmtree]

I will definitely be buying an exhaust for my car soon, just wondering people’s experiences with electric valves. I would want to get electric over vacuum simply due to the instant actuation of the valves.

That being said, I’ve heard the stories about how unreliable electric can be, so my question is, are they really that bad or is it just chance they go out.

Also do either option have more/less rattle in the valves when driving because that would be a huge factor too.

Thanks

[smokinjoe64]

Originally Posted by slowmtree

I will definitely be buying an exhaust for my car soon...Also do either option have more/less rattle in the valves when driving because that would be a huge factor too.

slowmtree IMO, your 'Right Foot' is the best valve possible...to gauge exhaust volume/sound.
Factors to consider:

• Always 100% reliable, infinite 'right foot' volume adjustability
• Never plagued w/ rattles, defects or failures [i.e. mechanical or electrical]
• No worries of spare parts availability or manf out-of business

After three different exhaust set-ups, then researched 'exhaustively', no pun intended , valved v conventional systems; opted for a single, integrated high quality system which sounds unique, exotic & AMAZING.
> Absolute 'ear porn'

I chose to go 'full beans' - -My system set up [Stage II, cat-less] => Supersprint:

• Down pipe section
• X-pipe section
• F1 Race cans

Supersprint fully supports, offers a plethora of options/products for e92X M3s to suit 'sound taste', budget, 3yr warranty, and more with direct purchase possible from Italy.

PM if interested learning more...GL on selection & enjoy!

[Redd]

Electronic valves do not last. Just go vacuum.

[pjk380]

I ran the Evolve Etronic valved exhaust for 3 years and never once had an issue with the electronic valves. It was recommended to clean the valves once in a while, but I never did and the valves always worked.

[smokinjoe64]

Originally Posted by pjk380

I ran the Evolve Etronic valved exhaust for 3 years and never once had an issue with the electronic valves. It was recommended to clean the valves once in a while, but I never did and the valves always worked.

slowmtree...mmmmm??? good luck w/that 'testimonial'

Do yourself a favor

[Soden82]

With the valved exhaust I have, it is vacuum actuated and I bought a vacuum pump that sits in the space under the trunk liner. I did not want to tap vacuum off of the brake booster or BPV.

[Redd]

Originally Posted by Soden82

With the valved exhaust I have, it is vacuum actuated and I bought a vacuum pump that sits in the space under the trunk liner. I did not want to tap vacuum off of the brake booster or BPV.

I did the same thing.

[slowmtree]

Thanks for the insight, I’ll definitely go with vacuums, now the hard part, deciding if I want 2 or 1 x pipe lol both sound great

[fakelouiebag]

Originally Posted by Soden82

With the valved exhaust I have, it is vacuum actuated and I bought a vacuum pump that sits in the space under the trunk liner. I did not want to tap vacuum off of the brake booster or BPV.

which vacuum pump did you purchase for this? i'm also looking into doing this install soon

[Redd]

Originally Posted by fakelouiebag

which vacuum pump did you purchase for this? i'm also looking into doing this install soon

I've been using this unit. Super reliable. You can probably pick one up easily in the US.

https://a.aliexpress.com/_oBA5xtQ

[Soden82]

Originally Posted by fakelouiebag

which vacuum pump did you purchase for this? i'm also looking into doing this install soon

Sent you a PM with a link

[spammysammich]

Previous owner of my car installed turn down cutouts and vacuum actuated valves tapped into the brake booster. Not my favorite configuration but I’ve managed to live with it for now. I’m considering putting the solenoid on a relayed circuit but I’m garbage at electronics.

valves open

pulling away

Hwy 20 tunnel

I’m also considering going back to a more stock config sans valves. But I’ll probably wait for them to break before I do that. You will hurt feelings with those valves open.