[kalslasie]

tommorow i am going to change the exhaust and I will document the whole thing so there is a clear vision of what is needed to be done! i'll keep you guys updated![IMG][/IMG]

[kalslasie]

Image quality of the first was not very good haha!

[esp260]

I want to do this in the future as well. Looking forward to your write up!

[MrEnthusiast88]

Awesome! I want to do this too. Although I'll need to salvage an m-sport rear bumper. Have the base bumpers currently. Really fun car though coming from an E92 335i.

[boypaulkim]

i am highly interested in doing the same. can't wait for your progress.
meanwhile, do you know if following occurs?

1. any negative effect? (ex. droning)
2. how hard will it be to reverse back to stock?
3. valve system working as normal

[kalslasie]

Originally Posted by boypaulkim

i am highly interested in doing the same. can't wait for your progress.
meanwhile, do you know if following occurs?

1. any negative effect? (ex. droning)
2. how hard will it be to reverse back to stock?
3. valve system working as normal

ok. so listen up it is installed took some piping and welding, and reversing to stock wont be as easy as putting on the new one.
when driving in comfort there is no droning, but the moment you touch sport or your paddle shifters the valve opens up and droning is occuring! the valve system works fine.

will make a video next week and keep you guys updated!

[esp260]

Originally Posted by kalslasie

ok. so listen up it is installed took some piping and welding, and reversing to stock wont be as easy as putting on the new one.
when driving in comfort there is no droning, but the moment you touch sport or your paddle shifters the valve opens up and droning is occuring! the valve system works fine.

will make a video next week and keep you guys updated!

How much did it cost you to get it installed at an exhaust shop?

[kalslasie]

Originally Posted by esp260

How much did it cost you to get it installed at an exhaust shop?

exhaust costed me 1300 including rear diffuser and carbon pieces, and fitting costed me 150euros

[wanofakind01]

I converted an m2 exhaust for an m235 in the past by just cutting the quad pipes to dual to fit my m diffuser. I'm assuming for 228 you kept the dual pipes (single for left and right) since you bought a diffuser. Or did you keep it as just the left outlet?

[kalslasie]

Originally Posted by wanofakind01

I converted an m2 exhaust for an m235 in the past by just cutting the quad pipes to dual to fit my m diffuser. I'm assuming for 228 you kept the dual pipes (single for left and right) since you bought a diffuser. Or did you keep it as just the left outlet?

yeah bought an 235i diff

[kalslasie]

I have made a video about the sounds! check it out! more to come.
So tell me what you think, I think it sounds great!

[boypaulkim]

Originally Posted by kalslasie

I have made a video about the sounds! check it out! more to come.
So tell me what you think, I think it sounds great!

I think it sounds really good. just like the 235 installed with MPE.
hard to believe that's a 4 cylinder.

how did you overcome the pipe diameter being different?

[breed]

Wooooo really nice! Need to do this on mine!

[kalslasie]

Originally Posted by boypaulkim

I think it sounds really good. just like the 235 installed with MPE.
hard to believe that's a 4 cylinder.

how did you overcome the pipe diameter being different?

yeaah i know right!! they rolled in the pipe so it got to 80mm

[Mr Carrots]

Sounds surprisingly meaty, nice work. I see you also debadged it - I doubt anyone would know it's a 228 unless they saw the fog lights!

[bimmerfile]

Originally Posted by kalslasie

I have made a video about the sounds! check it out! more to come.
So tell me what you think, I think it sounds great!

Sounds pretty damned good to me..

[kalslasie]

Originally Posted by breed

Wooooo really nice! Need to do this on mine!

if i was you you better do it!

[kalslasie]

Originally Posted by Mr Carrots

Sounds surprisingly meaty, nice work. I see you also debadged it - I doubt anyone would know it's a 228 unless they saw the fog lights!

yeah the fogs are the only thing haha! but you have to be into the cars for it!

[morphomeman]

Just, curious: do any of these changes to the exhaust system increase performance, and if so, how much and what what RPM levels? I am speaking here only of street-legal mods, nothing that is catless.

[kalslasie]

Originally Posted by morphomeman

Just, curious: do any of these changes to the exhaust system increase performance, and if so, how much and what what RPM levels? I am speaking here only of street-legal mods, nothing that is catless.

could not feel any improvement in performace only that the sounds makes you feel like going faster ?

[BEM-S4]

Originally Posted by morphomeman

Just, curious: do any of these changes to the exhaust system increase performance, and if so, how much and what what RPM levels? I am speaking here only of street-legal mods, nothing that is catless.

There are some vortex exhausts that claim gains - I'm no engineer but basically passing air over fancy shapes to create a vacuum.

Watch the wheeler dealer episode on the cobra they do a few minutes on it with a cutaway and someone explaining who actually understands this stuff.

[ORIGIN M.]

Sounds quite good.

Nice going !!