[m.hlavik@gmail.com]

Originally Posted by M3dreamz42

Hey all,

I'm new to the M3 club and a novice when it comes to motors, exhaust etc so be gentle with your replies/roasts lol. I recently got a 2011 E92 M3 DCT that had some mod done to the exhaust flanges to make it louder. It sounded decent but had ear-piercing drone and I couldn't bear it. On the advice of my mechanic buddy, he convinced me to get a different X-pipe for more power.

I have always loved the stock sound of the E9x M3 but wanted it to be a bit more aggressive, similar to an American V8.

I've since been told this wont be totally achieved due to the smaller 4.0L displacement of the S65 motor, compared to a typical 5.0L Mustang for example.

I pulled the trigger and bought a Macht Schnell catless race x-pipe with ESS tune from EAS (I believe this was advertised on a previous thread sometime ago). According to rep that I contacted it gives approx 25 whp.

Once installed, I found that it was too "raspy" and high pitched for my liking, especially when rev-matching on the downshifts with the DTC motor. Secondly, there was a significant fuel odour that filled the car when stopped.

Moving forward, I was advised to have HFCs welded into the X-pipe to solve the problem of the "rasp" and fuel odour.

I once again I pulled the trigger and had this done as I was assured that it would solve the issue.

Now that I have spent almost $4000 CAN to get what I hoped would be the perfect sound - I am nowhere close!

I have spent countless hours reading through the posts, trying to understanding the benefits of various systems, and listening to sound clips of different set ups. I appreciate that we all have our own opinions as to what sounds the best and that exhaust/muffler tone is very subjective.

Furthermore, I've been told that I need to change out the stock muffler because it doesn't pair well with the aftermarket X-pipe.

Last night I happened upon a thread that was posted by "Tomislav" in April 2012 about an H-pipe compared to the X-pipe which lead me to the title of this, and possibly for some updated advice/info.

I apologize for the long-winded post but I'm desperate to find a setup that I'm truly satisfied with.

Thanks in advance,

Hi. Try to Google on YouTube x vs h. There will be your answer about the sound. I had actually same idea like you. Would have as much deep sound as possible, without those ugly raspy sounds. As I had before 645i, would be close as much incan. But the true is, it's totally diferrent engine and I knew, will be hard job. But I tried my best, modified 9x to find the way I go. Please don't listen those, who tell you H is for nothing and recommend you buy expensive brands mufflers. Lol. What the advice. I have complete exhaust made by myself idea and the sound is amazing. So here is my suggestion: 1. NO X-PIPE. Go to some shop who work with exhausts, let them cut it out and instead of x, let them make H. Thats cheapest way to change your sound to be wayyy better. If not enough, will give you other suggestions. No worries about power lost etc. I tried both include dyno tests. Minimal diferrent. I will try find the video from my setup and post to here. Not sure, if i can find.