e92 M3 exhaust

[cvn]

Howzit guys, I currently have a catless xflow xpipe mated to ac Schnitzer rear boxes.. The xpipe had 2 resonators that I removed so now basically straight pipe, exhaust sounded demonic and perfect.. Strange thing is the car has gotten a lot quieter, especially on idle, it almost idles like a stock M3 would:thumbdo:

This after around 1000kms of driving, just doesn't sound the same anymore, have checked for leaks etc and spent a lot of time googling to no reward. All I can think of is ecu adaptation maybe? But I don't like the quietness...

How do I fix? I need that sound back...:fencelook:

 

[200ts]

Howzit guys, I currently have a catless xflow xpipe mated to ac Schnitzer rear boxes.. The xpipe had 2 resonators that I removed so now basically straight pipe, exhaust sounded demonic and perfect.. Strange thing is the car has gotten a lot quieter, especially on idle, it almost idles like a stock M3 would:thumbdo:

This after around 1000kms of driving, just doesn't sound the same anymore, have checked for leaks etc and spent a lot of time googling to no reward. All I can think of is ecu adaptation maybe? But I don't like the quietness...

How do I fix? I need that sound back...:fencelook:

Mine was also very loud after fitment, but now on idle its quiet when the car has warmed up. Its still really very loud on cold start, after that its pretty quite. When rev'd its still loud, same with full throttle, PM me if you are in JHB maybe we can compare cars.

 

[-DIESEL-]

i have 2 rear boxes and 4 resonators. car is loud on old start but then gets quiets. loud thou when revving. when cruising it sounds stock. primaforce in durban did mine.

 

[cvn]

Thanks for posts guys, but what has happened to mine is the sound has suddenly changed after call it a month of the normal screamer I became accustomed too, it has just become quiet, not the quiet after the cold start cycle..

Almost like a loss in back pressure that was there even on a warmed up normal idle..

 

[Dhp507]

That's called settling in ...............happens when fitting a new exhaust

 

[tcal69]

maybe you are loosing your hearing:fencelook::roflol:

Jk... but prob just the exhaust settling in...

 

[922-ZN]

I think you should just sell the exhaust to me Chevaan:blab:

 

[ChrisBrand]

Carbon build up in the pipes.