After experiencing the new exhaust for some time I think I can give you guys my opinion about it
.
Pics of the exhaust can be found
here and
here.
You may have seen a very similar version of the exhaust over at Klasen Motors.
Mine has a few minor differences, but all in all is very similar to it.
First of all, soundcheck. All three clips in the video have been taken at the same spot with the same microphone settings. Do yourselves a favor and get some headphones. Otherwise you may not hear the difference as good.
N-Mode / Exhaust Flap open party
As you may know already my GPF is gone. The idea was to create an exhaust note very similar to the setup with the GPF installed. The goal was NOT to just have a loud car. In fact, I wanted something bassy but not too noisy.
That's why I now have 1 catalytic converter > mid silencer > another mid silencer > rear silencer.
The first mid silencer can be swapped with the GPF in about 15 minutes.
The dimensions: 3.5" form the Turbo to the first mid silencer, from there on 3" till the exhaust tips.
Soooo quite a few silencers you might say. But as you can hear in the video those create the bassy sound note. And don't forget, when the exhaust valve is open, the rear silencer get's bypassed completely.
Measured noise with the exhaust valve open was about 95db when holding the gas pedal at 3750rpm.
The car is quieter than stock when driving with low rpms but becomes super loud when you are on the throttle and passing 3.5k rpms. With the windows down it is as pleasant as always, with the windows up especially the pops and bangs sound "farther" away (as if the car behind you is making them
).
Also, due to the dual mid-silencer setup the burbles become way way quieter. You only really hear them with the windows down and even then they are quite muffled.
Normal mode
MotorKrep is offering two different rear silencer designs, one a bit louder with close to zero backpressure buildup when the valve is closed and one very quiet with more backpressure buildup when the valve is closed.
Right now I have the louder one and for me it's a bit too loud. I am a bit kinky, especially since the stock rear silencer is really silent with the valve closed and this one is just not. Other customers who run the same rear silencer have no issues with it, I guess it's just me
. The loudness is just down to physics and since I am not planning to push the car on the German Autobahn with the exhaust valve closed, I will switch over to the more silent one in 1-2 months time.
But I still want to give you guys an idea how the louder one sounds like:
From the outside it's like a stock Subaru when you start the car. Super bassy and really silent but with a touch of sportiness if you so will^^. The higher you get in the rpms the more the noise penetrates to the interior and at around 3.5k rpms you hear it quite noticeably. Not loud by any means but you can definitely hear it.
Exhaust tips
The exhaust tips are not from MotorKrep but come from All-In Exhaust. I mentioned it a few posts earlier that those are a custom design by me. They do fit perfectly on the rest of the exhaust, so kudos to All-In Exhaust for helping me out here. I will however have a close look at the paint of the tips, since the N is known for having super hot exhaust temps which might peel off the paint.
Custom Work
- The first mid silencer has a thermo-integral-isolation (don't know the english word^^) on it.
- The rear silencer is mounted a bit lower to form a line with my ATH body kit. Previously the body kit was catching the wind from underneath the car. That issue is now solved!
TÜV
The exhaust is now in my papers (without the GPF-delete) and the papers have been adjusted to accommodate for the louder exhaust noise while standing still.
.
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