Y pipe question

[cesarortiz23]

I'm thinking of doing a custom y pipe on my 135i

But thinking of leaving everything else the same stock exhaust and stock DP

How would that sound ?


any body have this set up basically removing the resonator to a custom y pipe with stock exhaust that's not a bmw PE ?


I would like some feed back thanks

[kirill1221]

i would imagine it will sound great seeing as most of the sound comes from the modified y-pipe on the PE. maybe not most, but there are people that have put just the muffler on and its not the same

[cesarortiz23]

Originally Posted by kirill1221

i would imagine it will sound great seeing as most of the sound comes from the modified y-pipe on the PE. maybe not most, but there are people that have put just the muffler on and its not the same

I'm thinking of doing it

And hopefully I get maybe a good sound

I don't want toooo loud

or I don't want that whistle like if there is too much air flow on WOT

like this is like a whistle idk how to explain

I don't like that

[ShocknAwe]

As long as you have a muffler on there it will not sound like a diesel truck.

[JM98]

I think it should sound good, as long as you stay catted.

I had PE Mod with Y pipe and car sounded great, as soon as I went with DP's and catless mids it sounded like absolute garbage. Something between a mid 90s Honda with a straight pipe and a VW diesel.

I added a Vibrant resonator and this was the result:

Just loud enough. Experiment with different setups and tweak it till you're happy.

[cesarortiz23]

Originally Posted by JM98

I think it should sound good, as long as you stay catted.

I had PE Mod with Y pipe and car sounded great, as soon as I went with DP's and catless mids it sounded like absolute garbage. Something between a mid 90s Honda with a straight pipe and a VW diesel.

I added a Vibrant resonator and this was the result:

Just loud enough. Experiment with different setups and tweak it till you're happy.

Thanks for the help


I'm just looking for a good muffler shop right now I'm in socal

[Esteban]

Originally Posted by cesarortiz23

Thanks for the help


I'm just looking for a good muffler shop right now I'm in socal

I know an awesome exhaust shop in Fontana. Don't know if that's farther than you want to travel, but they're really good. PM me if you're interested.

[cesarortiz23]

Originally Posted by Esteban

I know an awesome exhaust shop in Fontana. Don't know if that's farther than you want to travel, but they're really good. PM me if you're interested.

Pm sent

[cesarortiz23]

So I did the resonator delete today in the morning it sounds ok

Not loud AT ALL so I'm hoping when I add my downpipe it will be louder

it just gave it a bit louder tone than stock so I'm ok for now intill I get my downpipe


if I add a down pipe I get a check engine light correct ??

[ShocknAwe]

Originally Posted by cesarortiz23

So I did the resonator delete today in the morning it sounds ok

Not loud AT ALL so I'm hoping when I add my downpipe it will be louder

it just gave it a bit louder tone than stock so I'm ok for now intill I get my downpipe


if I add a down pipe I get a check engine light correct ??

Only if you don't have a tune that overrides the O2 check.

[cesarortiz23]

Originally Posted by ShocknAwe

Only if you don't have a tune that overrides the O2 check.

Yeah ok some one mentioned that some people don't get a code but I didn't believe that because my f30 through a code really quick lol