Exhaust options

thungerford · 10-03-2021, 01:08 PM

Hi guys,

Have been playing around trying to make my n20 x1 sound a bit better than stock because I found it to be way too muffled from the factory and quieter than most cars on the road. I had the rear muffler removed and put a small tailpipe muffler with dual tips welded in by an exhaust shop this spring....
Overall the car is a bit louder at idle (mostly when cold) and sounds pretty good in the midrange but at close to WOT it doesn't sound good because it makes almost a suction sound when the turbo hits peak boost.
wondering if anyone has played around with a custom exhaust on here... I know there are a couple of axle-back systems on the market but they are $1500-2000 so more than I want to spend.

Blown95ImpalaSS · 10-15-2021, 01:13 PM

Sounds like you have an exhaust leak, or turbulence/whistling caused by the tips or the welds themself

Gamb1t · 10-16-2021, 02:04 PM

I've yet to come across a nice sounding n20 car. They all sound flabby and hollow. Still prefer the I6 engines in this regard.

Naramie · 11-21-2021, 01:26 PM

Do you happen to have an intake as well?

My car sometimes makes that suction nose when I am accelerating after a complete stop, it's loud even though you aren't going moving fast. If I accelerate slowly, floor it or use Sport mode I never hear it. It seems to happen more when I use like 60-70% pedal force to accelerate after a complete stop. Also at high rpms when it shifts or I let off the gas it makes a whoosh noise almost like a blow off valve. I have an afepower intake and stock exhaust. When I open up the exhaust flap, the sound is more evident.

10-03-2021, 01:08 PM	#1
thungerford New Member 0 Rep 8 Posts Drives: 2015 BMW X1 28i Join Date: Oct 2020 Location: Ontario iTrader: (0)	Exhaust options Hi guys, Have been playing around trying to make my n20 x1 sound a bit better than stock because I found it to be way too muffled from the factory and quieter than most cars on the road. I had the rear muffler removed and put a small tailpipe muffler with dual tips welded in by an exhaust shop this spring.... Overall the car is a bit louder at idle (mostly when cold) and sounds pretty good in the midrange but at close to WOT it doesn't sound good because it makes almost a suction sound when the turbo hits peak boost. wondering if anyone has played around with a custom exhaust on here... I know there are a couple of axle-back systems on the market but they are $1500-2000 so more than I want to spend.
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10-15-2021, 01:13 PM	#2
Blown95ImpalaSS First Lieutenant 72 Rep 365 Posts Drives: s54 e36 m3/4/5 Join Date: Mar 2015 Location: Los Angeles iTrader: (5)	Sounds like you have an exhaust leak, or turbulence/whistling caused by the tips or the welds themself
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10-16-2021, 02:04 PM	#3
Gamb1t Major 598 Rep 1,343 Posts Drives: 330i,X1,Z4,Solstice GXP, RX-8 Join Date: Aug 2015 Location: Canukistan iTrader: (0)	I've yet to come across a nice sounding n20 car. They all sound flabby and hollow. Still prefer the I6 engines in this regard.
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11-21-2021, 01:26 PM	#4
Naramie Registered 0 Rep 3 Posts Drives: BMW X1 Join Date: Feb 2016 Location: California iTrader: (0)	Do you happen to have an intake as well? My car sometimes makes that suction nose when I am accelerating after a complete stop, it's loud even though you aren't going moving fast. If I accelerate slowly, floor it or use Sport mode I never hear it. It seems to happen more when I use like 60-70% pedal force to accelerate after a complete stop. Also at high rpms when it shifts or I let off the gas it makes a whoosh noise almost like a blow off valve. I have an afepower intake and stock exhaust. When I open up the exhaust flap, the sound is more evident.
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