[lomon98]

Hello,

Thought I create a new thread as the previous one goes back to 2014... Anyhow, just installed the vrsf catless dp + some welded single walled 3.5" tips on my 12' 335i e92. Just wanted to get some feedback on the sound I get, does this sound like wastegate rattle?

1. Exhaust soundCold start + warmed up
2. Engine sound

I notice a short of "metallic" sound when cruising at low speeds, that was the sound which brought me to this thread actually. Can get a sound clip of it next week if needed.

Any feedback is very welcome! Cheers!

[suspect]

This is the N54 section so not sure if it’s same for N55 but wastegate rattle on N54 comes from the front right side (where the turbos are). On deceleration or when RPM are falling down you will hear a ratcheting sound.

[e92Diego]

do you still have the original turbos installed? could be wastegate rattle that's become more pronounced now that there's more air flow

[lomon98]

Originally Posted by suspect

This is the N54 section so not sure if it’s same for N55 but wastegate rattle on N54 comes from the front right side (where the turbos are). On deceleration or when RPM are falling down you will hear a ratcheting sound.

Sorry just realised, just posted it in the right forum...