BMW performance exhaust has been installed for a week now. Here are my thoughts:
In pure sound terms, it has better lower rev rumbling that the stock exhaust lacks. Stock exhaust has a silencer which makes street driving not as satisfying. It feels like there is something restricting the air flow at low speed. It feels like the 1er has asthma. :D.
The performance exhaust sounds the best when it is low speed, cold and is close to wide open throttle. In cruising, there is a low tone rumble and may annoy someone. I used to own a stock Honda Integra DC2 Type R. The Honda does 4000rpm @ 110kph on 5th gear. That is way more annoying I tell you.
How should I describe the noise. Let see the video below. It is hard to pick it up with the video camera and I had to enhance the recording to reflect as best and as truthful as I can.
I would describe it as a very dry low tone noise. “Dry” as if you have a very sore throat without any mucus on your throat. Sorry for the medical analogy here but at least this is more familiar with me.
The only disappointing thing is when the car is FOT in high rev, the new exhaust is not that much different from stocky. However, after 100km. It opens up one time today when I press hard at low rev, the pop comes in when changing gear.
It is certainly a different exhaust. I never have a tubro car before so the character is totally different from an NA car. You see NA car exhaust will make enormous sounds in high rev, making you wanting to rev the car more. Tubro exhaust like this one is totally opposite, wanting you to press on low rev and low speed – so I want to make someone heard when I pass you on the street!!!
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