[Yoxall]

Wanted to find out from you guys in the states if the wastegate/dump valve sound I'm getting now from my 335d is normal.

My Uk 2006 335d e91 has

Itg panel filter
Forge boost hose
Stage 2 AC Speedtech remap 385bhp 535lb
Full Egr delete/full Egr cooler delete.
Swirl flap delete
Dpf delete
Full custom exhaust no middle or back boxes.

Since fitting the egr delete and completely removing the egr cooler when on boost then lifting off throttle I get a nice wastegate/ dump valve noise?

Is that normal with the mods I have?

The power difference after the egr delete and cooler is considerable.

Thanks

Alex

[Persian Whisperjet]

I am similar but with no weird noises like you describe.

[Yoxall]

Originally Posted by Persian Whisperjet

I am similar but with no weird noises like you describe.

Have you deleted your Egr and egr cooler?

Only started since doing that yesterday.

[Persian Whisperjet]

Both are mere memory.

[Yoxall]

Originally Posted by Persian Whisperjet

Both are mere memory.

Fair enough.

I'm losing no boost it's made a noticable difference in power just strange that when I lift off throttle at say 2500 revs I get this wastegate/dump valve kind of noise.

Any ideas what it could be ?

[Persian Whisperjet]

I would search the forum there has been a discussion like this recently.

[Yoxall]

Originally Posted by Persian Whisperjet

I would search the forum there has been a discussion like this recently.

Thanks

[scuddy100]

Originally Posted by Yoxall

Fair enough.

I'm losing no boost it's made a noticable difference in power just strange that when I lift off throttle at say 2500 revs I get this wastegate/dump valve kind of noise.

Any ideas what it could be ?

I'm having the same issue
Any ideas yet mate??

[MooLard]

Mine is similar at present, think the sound comes more from the intake as I have a panel filter too.
Perhaps the EGR delete causes less obstruction and makes a sound that was already present more audible?

[RL18]

Originally Posted by Yoxall

Thanks

I have a similar noise that started with the electrical egr delete mod then got a lot louder with a cone filter. I’ve found that the wastegate will open like that during a regen though. Check your exhaust temp, mines usually around 1000 degrees F when the wastegate starts opening around that rpm.

Lol nvm you’re fully deleted