Loud custom exhaust back box delete?

[Danidanio]

Hey guys.

I saw a company in the UK that sells custom exhaust systems. They told me they can make my car sound as I want. I said that I want something loud but without touching cats because Im from Belgium and they are quite strict regarding emissions (pollution thing) here.
So they sent me a vid of an exhaust they fitted on a M3.
The thing is that they deleted the backbox and thats what they also recommend me to do. And they can also put a valve tronic system to it.
But I wanted to know, if I delete the backbox, could it somehow «*damage*» my car??

And what do you guys think of this exhaust/sound?

Im still thinking about Remus non resonated but the good thing with that custom exhaust is its price lol.

Thanks for your help!

[SanchoDivine]

Originally Posted by Danidanio

Hey guys.

I saw a company in the UK that sells custom exhaust systems. They told me they can make my car sound as I want. I said that I want something loud but without touching cats because Im from Belgium and they are quite strict regarding emissions (pollution thing) here.
So they sent me a vid of an exhaust they fitted on a M3.
The thing is that they deleted the backbox and thats what they also recommend me to do. And they can also put a valve tronic system to it.
But I wanted to know, if I delete the backbox, could it somehow «*damage*» my car??

And what do you guys think of this exhaust/sound?

Im still thinking about Remus non resonated but the good thing with that custom exhaust is its price lol.

Thanks for your help!

By "back box" do you mean the resonator?

That will make it a little bit louder.

If you are talking about the muffler, that will make it a lot louder but valves wouldn't do anything.

[aBMWfan]

Originally Posted by Danidanio

Hey guys.

I saw a company in the UK that sells custom exhaust systems. They told me they can make my car sound as I want. I said that I want something loud but without touching cats because Im from Belgium and they are quite strict regarding emissions (pollution thing) here.
So they sent me a vid of an exhaust they fitted on a M3.
The thing is that they deleted the backbox and thats what they also recommend me to do. And they can also put a valve tronic system to it.
But I wanted to know, if I delete the backbox, could it somehow «*damage*» my car??

And what do you guys think of this exhaust/sound?

Im still thinking about Remus non resonated but the good thing with that custom exhaust is its price lol.

Thanks for your help!

You'll regret this. You want valves, trust me

[IrvineTim]

Originally Posted by Danidanio

Hey guys.

I saw a company in the UK that sells custom exhaust systems. They told me they can make my car sound as I want. I said that I want something loud but without touching cats because Im from Belgium and they are quite strict regarding emissions (pollution thing) here.
So they sent me a vid of an exhaust they fitted on a M3.
The thing is that they deleted the backbox and thats what they also recommend me to do. And they can also put a valve tronic system to it.
But I wanted to know, if I delete the backbox, could it somehow «*damage*» my car??

And what do you guys think of this exhaust/sound?

Im still thinking about Remus non resonated but the good thing with that custom exhaust is its price lol.

Thanks for your help!

if you buy the s55, you just have to accept the exhaust note that comes with it. It can only be slightly improved, very slightly. It is not worth the expense of the new exhaust in my opinion. Spend that money on track mods, take it to the track, drive it like you stole it, and enjoy the car!!

[aBMWfan]

Originally Posted by IrvineTim

if you buy the s55, you just have to accept the exhaust note that comes with it. It can only be slightly improved, very slightly. It is not worth the expense of the new exhaust in my opinion. Spend that money on track mods, take it to the track, drive it like you stole it, and enjoy the car!!

I kinda agree with you. But I also think you need to trial and error till you get the sound you want (don't have to just accept it, it's the worst part of the car). After I tried 7 exhaust systems, the best way to improve the sound on these cars is to run a single midpipe into a valved titanium muffler. Example would be AA midpipe with Akrapovic or MPE muffler.

IMO it really improves the sound, makes it sort of exotic and proper. No more rasp.

[IrvineTim]

Originally Posted by BenM4Dominate

I kinda agree with you. But I also think you need to trial and error till you get the sound you want (don't have to just accept it, it's the worst part of the car). After I tried 7 exhaust systems, the best way to improve the sound on these cars is to run a single midpipe into a valved titanium muffler. Example would be AA midpipe with Akrapovic or MPE muffler.

IMO it really improves the sound, makes it sort of exotic and proper. No more rasp.

You paid for 7 different exhaust systems before you found one you liked?

[aBMWfan]

Originally Posted by IrvineTim

You paid for 7 different exhaust systems before you found one you liked?

Pretty much, but resale value has been really good for every system.

That's why I like to give advice to others so they can get it right the first time

[Danidanio]

Originally Posted by BenM4Dominate

You'll regret this. You want valves, trust me

Even if they somehow install a valve tronic system?

[Danidanio]

Originally Posted by IrvineTim

if you buy the s55, you just have to accept the exhaust note that comes with it. It can only be slightly improved, very slightly. It is not worth the expense of the new exhaust in my opinion. Spend that money on track mods, take it to the track, drive it like you stole it, and enjoy the car!!

S55 exhaust is the worst part of the car lol. It?s the first thing I?m thinking modifying.. and tbh, I never track my car. Only DD.. but thanks anyways

[IrvineTim]

Originally Posted by Danidanio

S55 exhaust is the worst part of the car lol. It?s the first thing I?m thinking modifying.. and tbh, I never track my car. Only DD.. but thanks anyways

I bought mine to track, and it was a blast being faster than everything else out there. Boyhood dreams coming true..

[Woodengun]

Valve controller can make it loud all the time instead of only in first and second under throttle.

I went from stock to CG controller and that made the exhaust much louder all the time. You can also just unplug the valves after they are open. Stock exhaust is pretty loud with valves open. In Sport+, I think the valves close after second gear and on downshifts.

I now have AWE with valve controller. Sounds very different than stock and is a bit louder (probably due to secondary cat and resonator deletes).

[x.shell]

Originally Posted by Danidanio

Even if they somehow install a valve tronic system?

If you delete the muffler box altogether, what is the point of a "valvetronic"? Usually the valves close to redirect the entire exhaust flow to the actual muffler box. If you delete your muffler box, there is no point to a valve system as there is no other option for redirecting the flow.

[aBMWfan]

Originally Posted by exo-shell

If you delete the muffler box altogether, what is the point of a "valvetronic"? Usually the valves close to redirect the entire exhaust flow to the actual muffler box. If you delete your muffler box, there is no point to a valve system as there is no other option for redirecting the flow.

+1

[Danidanio]

Originally Posted by exo-shell

If you delete the muffler box altogether, what is the point of a "valvetronic"? Usually the valves close to redirect the entire exhaust flow to the actual muffler box. If you delete your muffler box, there is no point to a valve system as there is no other option for redirecting the flow.

Oh yeah my bad. But in that case, would u recommend me doing it? Because after all, valves with a valve system are only there to «*control*» the sound. And since Im looking for something loud all the time.. Should I do it?

Thanks

[aBMWfan]

Originally Posted by Danidanio

Oh yeah my bad. But in that case, would u recommend me doing it? Because after all, valves with a valve system are only there to «*control*» the sound. And since Im looking for something loud all the time.. Should I do it?

Thanks

You can ignore my advice if you want. But guaranteed you will post it for sale within a month cause you will hate not having valves.

Good luck

[Danidanio]

Originally Posted by BenM4Dominate

You can ignore my advice if you want. But guaranteed you will post it for sale within a month cause you will hate not having valves.

Good luck

No man im not ignoring, just thinking if its rlly worth it.. I just dont know how I could hate not having them..
Well if the guy can install all that for cheap enough, ill give it a try. And even if I dont like it, I will put some Remus shit and that?s it

[M5Rlz]

Originally Posted by IrvineTim

if you buy the s55, you just have to accept the exhaust note that comes with it. It can only be slightly improved, very slightly. It is not worth the expense of the new exhaust in my opinion. Spend that money on track mods, take it to the track, drive it like you stole it, and enjoy the car!!

I've heard the competition package helps, but I've not heard a single 2015 like I had regardless of exhaust or amount spent that I was like WALA its fixed lol

[Danidanio]

Originally Posted by BenM4Dominate

You can ignore my advice if you want. But guaranteed you will post it for sale within a month cause you will hate not having valves.

Good luck

And do u think deleting the back box will somehow damage my car or cause trouble..?

[SanchoDivine]

Originally Posted by Danidanio

And do u think deleting the back box will somehow damage my car or cause trouble..?

What do you mean by "back box"? Use terms like "resonator", "muffler", etc

[Danidanio]

Originally Posted by SanchoDivine

What do you mean by "back box"? Use terms like "resonator", "muffler", etc

The muffler

[SanchoDivine]

Originally Posted by Danidanio

The muffler

Not sure how you can have valves on an exhaust system without a muffler. That would probably make it so that your exhaust is closed with no where to go. That can't be good for your engine.