Borla drone eliminated in 20 minutes for 20 bucks
#106
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#107
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anyone here use dynamat to help reduce cabin drone noise? or some type of sound deadening?
#108
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https://www.clublexus.com/forums/is-...ing-trunk.html
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Wh0pp3r (07-11-19)
#109
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Ive put mine on, the drone is definitely gone but you can still hear the "kup kup kup" during idle, so it's a nice middle ground to my ears. However, when you floor it, there's a horrible "hiss" sound, i wonder if it's just not properly installed? other than that, there's a significant lag in throttle response?!, the torque down low feels like it's gone and feels like a smaller capacity engine.. ![Frown](https://www.clublexus.com/forums/images/smilies/frown.gif)
am i doing something wrong?? btw, what's the actual outlet size on the others? mine was like 1 inch..
![Frown](https://www.clublexus.com/forums/images/smilies/frown.gif)
am i doing something wrong?? btw, what's the actual outlet size on the others? mine was like 1 inch..
#110
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Check this thread for details of a couple of folks doing exactly this:
https://www.clublexus.com/forums/is-...ing-trunk.html
https://www.clublexus.com/forums/is-...ing-trunk.html
Im on the right path then. i was told that wrapping the headers help with drone, which made no sense to me tbh and i even spent some time trying to find anything on said claims. but sound deadening sounded like a better option. guess ive got something more to do. lol
#112
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I can vouch for this. Although I have an IS350, I found information on the side branch resonators on the ISF forum.
I had a custom exhaust created, sounded super nice accelerating and full throttle, cruising gave me a huge headache with massive drone. Tried resonators, drone was reduced to about 80% which was still overwhelmingly annoying, actual exhaust became significantly quieter outside the car. Which I was not happy about. Then I took the resonators off, put side branch resonators, drone went down to about 20% of the original setup, but upon wide open throttle, it was about 85-90% of the original loudness but stays relatively quiet on cruising both inside and outside.
I had a custom exhaust created, sounded super nice accelerating and full throttle, cruising gave me a huge headache with massive drone. Tried resonators, drone was reduced to about 80% which was still overwhelmingly annoying, actual exhaust became significantly quieter outside the car. Which I was not happy about. Then I took the resonators off, put side branch resonators, drone went down to about 20% of the original setup, but upon wide open throttle, it was about 85-90% of the original loudness but stays relatively quiet on cruising both inside and outside.
#113
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May just install headers/gesi/ and exhaust and see how it performs... if the drone is tolerable ill leave it as is. but living in L.A. i feel its a gamble.
Last edited by Wh0pp3r; 07-12-19 at 02:46 PM.
#114
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Just to update, I have not taken these silencers out since I installed them several years ago.
And my Wife and I just completed a 5,000km road trip in the ISF last week.. so that goes to show how wife-friendly the exhaust is now.
And my Wife and I just completed a 5,000km road trip in the ISF last week.. so that goes to show how wife-friendly the exhaust is now.