M3 exhaust modification

[L4ces]

With all things being constant maybe he can offset the weight by driving naked

Probably would NOT notice a performance gain with a 50lb reduction.

Originally Posted by e92Mjunky

not very deep, kind of high pitched and tin can sounding..but better than stock none the less...still weighs the same I assume so no performance gain in that regards...

[blackedout335i]

any sound clips ?

[GewoW]

Originally Posted by Wall$treet

Wow that sounds better by far than any aftermarket exhaust. Not sure why no aftermarket exhaust chose to keep a high pitched sound instead of all bein quite deep and not anything like the original M sound only in louder form. This nailed it however.

So did you take it to an exhaust shop or where did you get this done?

yeah he's a professional welder for car-only applications.

[Periokid]

Wow, I can't believe how big this thread has become. I sold my M3 last year and I am not looking to get another. I have a stock exhaust that I saved and will likely do this mod again. Perhaps with some enhancements.

[ktan23]

has anyone done this with the long AND short perforated tubes were sealed? I know periokid did it originally but said it was too loud, but wondering if it was because his chamber wasn't fully sealed yet? he also said if he were to do it again, he would have both of them closed. just wondering if anyone actually has this done and how the sound is? any pics or feedback would be good, thanks!

[1sikbmr]

Originally Posted by ktan23

has anyone done this with the long AND short perforated tubes were sealed? I know periokid did it originally but said it was too loud, but wondering if it was because his chamber wasn't fully sealed yet? he also said if he were to do it again, he would have both of them closed. just wondering if anyone actually has this done and how the sound is? any pics or feedback would be good, thanks!

yes I had both the large and small sealed. I didn't find it too loud and neither did other people that have heard it. here is a vid

[GewoW]

i approve

[ktan23]

Originally Posted by 1sikbmr

yes I had both the large and small sealed. I didn't find it too loud and neither did other people that have heard it.

was this vid before you got your AA exhaust? And this is with everything else stock right? How satisfied were you with the sound in real life? It's hard to tell from video haha after watching so many they start to sound similar haha thanks!!

[1sikbmr]

Originally Posted by ktan23

was this vid before you got your AA exhaust? And this is with everything else stock right? How satisfied were you with the sound in real life? It's hard to tell from video haha after watching so many they start to sound similar haha thanks!!

This was a while before I got my AA exhaust. No this was not completely stock. I had the AA green filter and I gutted my secondaries but to be honest this is really what it sounds like with or without those things. I was really satisfied with it. I absolutely loved that exhaust and got many compliments on it. There was no drone at all and when you step on the gas you really hear the exhaust note.

[k3silk]

Originally Posted by 1sikbmr

This was a while before I got my AA exhaust. No this was not completely stock. I had the AA green filter and I gutted my secondaries but to be honest this is really what it sounds like with or without those things. I was really satisfied with it. I absolutely loved that exhaust and got many compliments on it. There was no drone at all and when you step on the gas you really hear the exhaust note.

I have this exhaust now on my car bought from 1sikbmr and have no other modifications on the car trust me it sounds very good. The sound is like stock but louder with no rattle whats so ever. Its one of those things that a video camera can not capture the true sound. This OEM modded exhaust sounds so good to me I have a hard time believing that he sold it to me...But I'm happy he did. I painted the whole thing flat black and painted the tips semi gloss black and man it cleans up the rear end. Do this mod and you will not be disappointed trust me. If you like a clean classy sound that make your car sound a little different from a stock M3 with worrying about waking neighbors or ever having someone complain "Wife, Girlfriend" about your car sound go for it.

[kmarei]

Originally Posted by Periokid

Wow, I can't believe how big this thread has become. I sold my M3 last year and I am not looking to get another. I have a stock exhaust that I saved and will likely do this mod again. Perhaps with some enhancements.

I for one would like to thank you
I bought a modified exhaust and I love the sound
Exactly what I wanted, a little louder, but nothing too crazy
I'm buying a 2012, and the exhaust is being moved to the new car

[CCLSVTM3]

Not to hijack, but I have an OEM muffler for an 08 E90 for sale if anyone wants to give this a try....

[amhobbs]

Originally Posted by GewoW

yeah he's a professional welder for car-only applications.

Gewow,

I also live in MTL. Surprised I didn't see you on race tracks yet!
Where did you have you mod done? I'm interested in having mine done as well. Was yours opened from the top or bottom and how much did it cost you?

If we crossed each other on r/t, you may remember my track car!


Cheers,

Andre

[ktan23]

Originally Posted by k3silk

I have this exhaust now on my car bought from 1sikbmr and have no other modifications on the car trust me it sounds very good. The sound is like stock but louder with no rattle whats so ever. Its one of those things that a video camera can not capture the true sound. This OEM modded exhaust sounds so good to me I have a hard time believing that he sold it to me...But I'm happy he did. I painted the whole thing flat black and painted the tips semi gloss black and man it cleans up the rear end. Do this mod and you will not be disappointed trust me. If you like a clean classy sound that make your car sound a little different from a stock M3 with worrying about waking neighbors or ever having someone complain "Wife, Girlfriend" about your car sound go for it.

ok cool i think i will be doing this mod this week and will have both perforated pipes sealed! thanks everyone for the info! but i really want bigger tips!!! lol idk which ones to get and/or size?!

[GewoW]

Originally Posted by amhobbs

Gewow,

I also live in MTL. Surprised I didn't see you on race tracks yet!
Where did you have you mod done? I'm interested in having mine done as well. Was yours opened from the top or bottom and how much did it cost you?

If we crossed each other on r/t, you may remember my track car!


Cheers,

Andre

i may be at icar tonight. i didn't do too much tracking this summer due to time constraints. was at calabogie, and tremblant twice

was done from the top (as in, the side that is facing the inside of the car) and was 300. did it at agtronic motorsports in laval

[1sikbmr]

Originally Posted by k3silk

I have this exhaust now on my car bought from 1sikbmr and have no other modifications on the car trust me it sounds very good. The sound is like stock but louder with no rattle whats so ever. Its one of those things that a video camera can not capture the true sound. This OEM modded exhaust sounds so good to me I have a hard time believing that he sold it to me...But I'm happy he did. I painted the whole thing flat black and painted the tips semi gloss black and man it cleans up the rear end. Do this mod and you will not be disappointed trust me. If you like a clean classy sound that make your car sound a little different from a stock M3 with worrying about waking neighbors or ever having someone complain "Wife, Girlfriend" about your car sound go for it.

Nice bro. Glad you like it. I absolutely loved that thing. I like what you did with it.

[Robmaster]

Originally Posted by 1sikbmr

Nice bro. Glad you like it. I absolutely loved that thing. I like what you did with it.

did you close both, the small and the large perforatet pipe?

[1sikbmr]

Originally Posted by Robmaster

did you close both, the small and the large perforatet pipe?

yes both were sealed.

[Stainless 45]

Just did mine, and enclosed 3/4 of the long perforated pipe with stainless piping. $300 for the work from a top-notch welder in my area, I cut into the top of the can with an angle grinder. Painted flat black using high temp barbecue grill paint from ACE. The sound is great, purrs along nicely while cruising, roars when WOT. A little louder than stock, much like the videos I've heard of the M performance exhaust.

Interesting to note- on cold start up the exhaust sounds like a boat or muscle car while the air pump to heat up the cats is on. This goes away after 2 minutes and settles into a nice low tone.

[k3silk]

I love this mod. I have no desire to get an after market exhaust after having this. My plain was to use this until the winter and get an exhaust but after having this exhaust on I will spend the money I have for a big name exhaust like akra on on rims instead.

[bigtex]

has anyone in DFW texas done this? Looking for a shop in the area. thanks

[goto35]

Any one in Los Angeles that has done this!?