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I can finally hear myself think in the car now. I had a cat back custom zorst fitted yesterday. Its a straight through system with a big centre res and large rear muff.

It read 88db at 5000rpm, driving around at 3000rpm it was down at 80db.

Prior to the change I drove in with a hold onto it, 118db at 5000rpm.

God dam its good to drive a quite car again!

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https://www.sau.com.au/forums/topic/130741-ding-dong-the-noise-is-gone/
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go the quite cars

my stock exhaust reads 74 db (quieter then a hyndai excel lol) with nismo cat as opposed to the apexi 3.5" all the way thru exhaust i got with the car with no cat converter which was im sure around 120+

i want my exhaust back tho for better flow/power, but law wont let me =(

that exhaust is guaranteed to get u defected, talking from experience

and silencer wont do shit... I had the remote control silencer on my system which could control the resonance/flow from inside the car and they still defected me and took me to EPA every time.

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