Jump to content
SAU Community

Need To Drop Decibels! Exhaust Question

FLUID

By FLUID,
in General Maintenance

 Share

Recommended Posts

FLUID Enthusiast

FLUID

Posted
Posted

Hey, I've got a r33 na with an x-force cannon (4 1/2 inch) and want to get it quieter with less vibration that hurts your head after a while. I've installed the silencer and that's done alot but want to hear any ideas of fiberglass, cotton etc inside the cannon to get some quietness. Thanks

scotty nm35 Grand Master

scotty nm35

Posted
Posted

A Varex muffler would help, they are one of the best sound deadening mufflers I have found so far, and then you can close the flap to silence them if you need to. My 3.5 inch one doesn't drone much at all.

cherring Proficient

cherring

Posted
Posted

A Varex muffler would help, they are one of the best sound deadening mufflers I have found so far, and then you can close the flap to silence them if you need to. My 3.5 inch one doesn't drone much at all.

How did you set up the boost actuated Varex???

scotty nm35 Grand Master

scotty nm35

Posted
Posted

Does anyone in here have a car that can't be defected? At the end of the day the goal is to not be pulled over, the impression of a stock car is the key imo.

Unfortunately there are no aftermarket mufflers I can recommend to reduce noise to a legal level other than the closed Varex. Other than that you would be best off finding a S/H jap cat back with a Jasma label.

I have gone back to the Varex motor on mine as the varex valve was too tight and kept jamming. There are other options I am trying at the moment.

post-63525-0-09171300-1342655810_thumb.jpg

cherring Proficient

cherring

Posted
Posted

Does anyone in here have a car that can't be defected? At the end of the day the goal is to not be pulled over, the impression of a stock car is the key imo.

Unfortunately there are no aftermarket mufflers I can recommend to reduce noise to a legal level other than the closed Varex. Other than that you would be best off finding a S/H jap cat back with a Jasma label.

I have gone back to the Varex motor on mine as the varex valve was too tight and kept jamming. There are other options I am trying at the moment.

Exactly, I think even my FMIC can defected can't it, just don't fail the dick head test if you do get pulled over.

The boost controlled varex looks interesting, shame it didn't quite work, and am interesting in hearing what you come up with.

mad082 Grand Master

mad082

Posted
Posted

Does anyone in here have a car that can't be defected? At the end of the day the goal is to not be pulled over, the impression of a stock car is the key imo.

Unfortunately there are no aftermarket mufflers I can recommend to reduce noise to a legal level other than the closed Varex. Other than that you would be best off finding a S/H jap cat back with a Jasma label.

I have gone back to the Varex motor on mine as the varex valve was too tight and kept jamming. There are other options I am trying at the moment.

there are plenty. any exhaust shop could sell you about 10 different ones that would, but few people would want them on their imports as a: they aren't fully hektic cannons, and b: they aren't a straight through type (so don't flow as well). but even a decent flowing muffler used with a decent centre muffler will give you exhaust levels below the legal limit. a non performance orientated muffler will be built in the same way as a stock one and give the same level of noise attenuation

scotty nm35 Grand Master

scotty nm35

Posted
Posted

but even a decent flowing muffler used with a decent centre muffler will give you exhaust levels below the legal limit. a non performance orientated muffler will be built in the same way as a stock one and give the same level of noise attenuation

With a 3.5 inch system? You have to be kidding... Most of my customers want 300kw at least these days, with two free flowing mufflers. There aren't many on the market that cater for low noise along with the flow, especially in stainless.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • MBS206
      NC MX5

      By MBS206 · Posted

      Just buy a BMW if you want that... You can then choose whatever engine of theirs you want 😛
    • Milkmun
      How to preserved a signed plastic??

      By Milkmun · Posted

      Clear vinyl wrap or clear coat? 
    • Kinkstaah
      NC MX5

      By Kinkstaah · Posted

      There really needs to be an ODBII item that can play intake noise through speakers, synchronized with your current RPM and TPS%.
    • GTSBoy
      Best Skyline ever

      By GTSBoy · Posted

      Worth most of the $50k alone!
    • The Bogan
      NC MX5

      By The Bogan · Posted

      So, we now have a straight and clean boot lid inbound and the car goes in for paint, again, on Wednesday, and will be ready on Friday, all ready to get cams and stuff on Monday  And by straight and clean.....I mean a brand new OEM one that cost..... $1300....😪 Sadly there's no clean undamaged used soft top version available, plenty for the power retractable hard top versions though, which is arse and makes Mark have the sads I could have waited longer, until a NC sort top boot lid eventually turned up, but I'm sick of waiting and said fark it and made it rain cash, meh In other naturally aspirated news, one of the guys at work brought in his old Corola which had a 4AGE in it, really nice clean car with lots of mods, including ITB's, man that things induction noise sounds sick with all of the dorts that makes you smile......maybe the NC needs ITB's, yeah, basically for the noise they make, but they're pretty expensive, but, they sound so damn good I may bring this up when I drop the car up on Monday, and by may, I mean I will🤣🤑🤪🤣
×
×
  • Create New...