[m4dman]

I currently have the MPE titanium exhaust with secondaries. I just pulled the trigger on some primaries. Anyone have insight on how much louder the car will get ? If someone has this setup please let me know if you have any regrets and if you have any videos would help. Thank you !

[NCRob]

I have same setup as you now. I can only imagine how much louder those pops and bangs would be. I know there was a member FSHNGRY on here who had primaries but removed as they were “too much” but of course it’s all subjective so you might love it. Have you considered the Dinan x pipe? I’ve been contemplating that.

Found his response in my PM and hope he is cool with me quoting him:
“Regarding the primary catless DP- I removed them back in late December. Yes they did throw a CEL. The smell of the fuel didn’t bother me, but the sound was just awful. It lost that sexy aggressive European V8 tone and it took on a straight piped charger sound. The pops and bangs were in my opinion, beyond obnoxious. The cold start didn’t sound good at all anymore. It was just way too loud and not refined like the F90 was designed to be.“

[pbonsalb]

Cold start can be deleted with a tune and is unnecessary for catless. Pops and bangs can be adjusted with a tune. I would not run catless without a tune. The lack of valves on the MPE would be a no-go for me even if I was willing to spend $7k on an exhaust. Titanium absorbs less sound than stainless and aftermarket stainless absorbs less sound than the heavy stock stainless.

[m4dman]

Originally Posted by NCRob

I have same setup as you now. I can only imagine how much louder those pops and bangs would be. I know there was a member FSHNGRY on here who had primaries but removed as they were “too much” but of course it’s all subjective so you might love it. Have you considered the Dinan x pipe? I’ve been contemplating that.

Found his response in my PM and hope he is cool with me quoting him:
“Regarding the primary catless DP- I removed them back in late December. Yes they did throw a CEL. The smell of the fuel didn’t bother me, but the sound was just awful. It lost that sexy aggressive European V8 tone and it took on a straight piped charger sound. The pops and bangs were in my opinion, beyond obnoxious. The cold start didn’t sound good at all anymore. It was just way too loud and not refined like the F90 was designed to be.“

Well let’s hope for the best upper Downpipes will be coming in this week hahah. I was hoping to do the resonator delete. I was talking about it before but the shop that was working with me never ended up ordering the stainless material for me so I just lost interest. Hopefully the mufflers and resonators help with the tone of sound and volume. I don’t want it to be overly obnoxious!

[carseatsm5]

I thought MPE already eliminates the midpipe resonator. No?

[mike@x-ph.com]

Originally Posted by m4dman

Well let’s hope for the best upper Downpipes will be coming in this week hahah. I was hoping to do the resonator delete. I was talking about it before but the shop that was working with me never ended up ordering the stainless material for me so I just lost interest. Hopefully the mufflers and resonators help with the tone of sound and volume. I don’t want it to be overly obnoxious!

Looking forward to your feedback

[Info@mad-us.com]

It's going to be a good amount louder and way more aggressive with the burbles.

Should sound great though

[pbonsalb]

Originally Posted by carseatsm5

I thought MPE already eliminates the midpipe resonator. No?

There is a little one, probably with a crossover inside. Pretty expensive exhaust for one that looks to be 90% stainless. Might be just the muffler end that has titanium.

[Info@mad-us.com]

Originally Posted by pbonsalb

There is a little one, probably with a crossover inside. Pretty expensive exhaust for one that looks to be 90% stainless. Might be just the muffler end that has titanium.

Yeah, the rear looks like inconel or titanium midpipe seems to be stainless.

[m4dman]

Originally Posted by pbonsalb

There is a little one, probably with a crossover inside. Pretty expensive exhaust for one that looks to be 90% stainless. Might be just the muffler end that has titanium.

I agree it’s a very pricey system. But a great option tone is very unique I have to say ! But there are better options out there.

[NCRob]

Originally Posted by pbonsalb

There is a little one, probably with a crossover inside. Pretty expensive exhaust for one that looks to be 90% stainless. Might be just the muffler end that has titanium.

Yes just axle back is titanium from my understanding. Do you think the Dinan X Pipe would make much of a difference to this “baby resonator?”

[pbonsalb]

I sure would not cut up a $7000 exhaust to eliminate a tiny resonator around the crossover, but the exhaust should be louder without the tiny resonator around the crossover. Instead, I would sell the MPE and buy a louder exhaust.

[mike@x-ph.com]

Originally Posted by pbonsalb

I sure would not cut up a $7000 exhaust to eliminate a tiny resonator around the crossover, but the exhaust should be louder without the tiny resonator around the crossover. Instead, I would sell the MPE and buy a louder exhaust.

+1

[916_M5]

I am very happy with my High flow 200cel primary cats from MAD. The rest of my system is straight through: 2ndary DP's, custom X pipe and AWE Axle back exhaust.

Here is a sound clip of this set up.

https://www.instagram.com/reel/C2la6...M0N2Q2NDBjYg==

[LouK]

Originally Posted by 916_M5

I am very happy with my High flow 200cel primary cats from MAD. The rest of my system is straight through: 2ndary DP's, custom X pipe and AWE Axle back exhaust.

Here is a sound clip of this set up.

https://www.instagram.com/reel/C2la6...M0N2Q2NDBjYg==

You go with the track axle back? Not that the switch path will make much of a difference. I currently have x pipe and secondaries, wanting to go a little more but can’t decided if I want to do primaries or axle back.

[916_M5]

Originally Posted by LouK

You go with the track axle back? Not that the switch path will make much of a difference. I currently have x pipe and secondaries, wanting to go a little more but can’t decided if I want to do primaries or axle back.

I did the switchback and happy i did. They dont do A TON but they do help keep it quieter when i need it.

[916_M5]

Originally Posted by LouK

You go with the track axle back? Not that the switch path will make much of a difference. I currently have x pipe and secondaries, wanting to go a little more but can’t decided if I want to do primaries or axle back.

If i were you, I would go high flow primary cat over exhaust. It will be cheaper, better/more performance gains and it will be the sound youre looking for.

High flow primary cat > Axle back exhaust

[LouK]

Originally Posted by 916_M5

If i were you, I would go high flow primary cat over exhaust. It will be cheaper, better/more performance gains and it will be the sound youre looking for.

High flow primary cat > Axle back exhaust

How much of a sound increase is the 200cell vs stock primary? I’m assuming you need a tune for the check engine light as well?

[pbonsalb]

The MAD, CTS and other inexpensive high flow cat primaries stop the smell and are slightly quieter than catless (and slightly louder than stock) but do trigger a CEL. Expensive high flow cats like HJS or Gesi will prevent a CEL. A tune is needed to stop the CEL.

[Nez136]

Originally Posted by 916_M5

I am very happy with my High flow 200cel primary cats from MAD. The rest of my system is straight through: 2ndary DP's, custom X pipe and AWE Axle back exhaust.

Here is a sound clip of this set up.

https://www.instagram.com/reel/C2la6...M0N2Q2NDBjYg==

I really like the Awe switchpath. I’ve had their exhaust systems on 3 of my previous cars. Your car sound is exactly what I want.

Looks like MAD pipes and awe will be the way. You don’t have smell at all with the High flows?

[m4dman]

Originally Posted by Nez136

I really like the Awe switchpath. I’ve had their exhaust systems on 3 of my previous cars. Your car sound is exactly what I want.

Looks like MAD pipes and awe will be the way. You don’t have smell at all with the High flows?

I had AWE on my m4. However I always had a slight rubbing issue on the tips for some reason. I always thought it was a installer error. But My buddy with an rs5 and with the same track exhaust had an issue where his exhaust mounting brackets kept snapping randomly. Good company in terms of pricing, fitment I’m not to fond on I’m not throwing shots just speaking from my experience.

[EM5C]

I have MAD catless primaries and secondaries, and MAD catback. It is LOUD especially in sport + with valves open. In comfort it’s not thaaaat much louder than my stock setup. I personally think it sounds incredible. Gotta love subjectivity! In hindsight, I’d probably do a catted high flow primary but I’m happy for now!