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Making 75 db

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Making 75 db

Postby John McFarland » Tue Jul 11, 2017 11:12 am

Ok, so I'm coming up next weekend for race 4. I see sound is 75 db. How hard is that to make? I have no idea where my car reads. It has never been a problem at Mid Ohio or Pitt, but they have a higher allowance.

My current setup has a Magnaflow round muffler after the header and the exhaust runs out the back straight out. What are others out there doing on their setups that keeps the noise down to limits? I have this weekend to get all my final prep so if I need additional sound deadening I can get that done too.
John McFarland
ITA Nissan NX2000
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Re: Making 75 db

Postby Brian » Tue Jul 11, 2017 2:56 pm

It seems like the generic solution for a car that is marginal on sound here is a 90 degree angled exhaust tip, pointed Down and Right (135* compass- as viewed from the rear).
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