Grand prix's stock airbox has many baffles and tubes inside for sound muffling, using a dremel with a small cutting wheel I removed every one for an open intake box. The sound is much louder when you get on it, and is a more muscular sound. No noticeable gains really, power off the line seems to be slightly improved.
I don't see why anyone would really want a loud or anything louder than stock exhaust(since it never sounds good anyway) The engine sounds pretty cool once you put an open cone on it, or gut the airbox like I did. It's pretty loud outside. My exhaust is quieter than stock.
Негізгі бет L36 gutted stock airbox WOT
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