[tnsguypat]

I have a 2007 335I with aftermarket factory type warranty. I want to do a full exhaust but it is quite expensive. I have decided to settle for a muffler delete and I have a few questions.

1. Will I have issues with warranty while having a deleted muffler?
2. How bad is the drone in the car after the deleted muffler?
3. I have heard that have a DCI and a deleted muffler causes loss of low end torque?

[techie182]

I have e92 n52 engine and did muffler delete 2 months ago.
Took it off day after I installed them. Wasted $250. Find local with muffler delete.
Too much drone at low rpm.

[StevenY.]

It should be fine unless something goes wrong and they can prove that your muffler delete is what caused the problem.
I agree with the post above though.

[Roberto Cervezas]

Here ya go

Most videos listed make mention about the heavy drone. I hadn't heard a forced induction BMW with muffler delete before, but know the NA cars are ungodly loud.

[JAL0988]

How about you do the golf tee mod if you want a little extra sound. Try it out first and if it's still too quiet then go for the muffler delete.

[tturbolife]

Don't do it... it is way too loud and drones like crazy.

[tnsguypat]

I already have done the golf tee. I guess I will do some mods first and just not worry about my exhaust until I can afford a full one. Thanks though.