IS 500 aftermarket exhausts
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06-05-22, 01:59 PM
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Hey all, as promised, here’s a video with a decibel reader that shows stock exhaust and the GTHaus axleback differences.
I set up the car in an enclosed 2 car garage, the iPhone 12 is running the Decibel X app and is placed on the ground at 12” away from the center of the rear bumper.
I’ll eventually do interior sounds and flybys later on.
I will say, interior sounds are obviously louder but not obnoxious. It seems to peak at 6th gear but then goes quieter afterwards. So if you’re cruising, it’s very mild and only slightly louder than stock, even with exhaust valves open. When you WOT, you will hear it and it will sound glorious! This is what it should have sounded stock (imho).
Edit: For anyone wondering, if you turn the car off with the valves closed, they will stay closed. (If you have the remote switch) you can open the valves even if the car is turned off, but you can’t close them again until you turn the car on again.
I set up the car in an enclosed 2 car garage, the iPhone 12 is running the Decibel X app and is placed on the ground at 12” away from the center of the rear bumper.
I’ll eventually do interior sounds and flybys later on.
I will say, interior sounds are obviously louder but not obnoxious. It seems to peak at 6th gear but then goes quieter afterwards. So if you’re cruising, it’s very mild and only slightly louder than stock, even with exhaust valves open. When you WOT, you will hear it and it will sound glorious! This is what it should have sounded stock (imho).
Edit: For anyone wondering, if you turn the car off with the valves closed, they will stay closed. (If you have the remote switch) you can open the valves even if the car is turned off, but you can’t close them again until you turn the car on again.
#2
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Grigsbyt1 (03-16-22)
#7
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Apex-i axel back
https://www.apexi-usa.com/collection...42411025137885
https://www.apexi-usa.com/collection...42411025137885
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And on YouTube...
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flipside909 (03-04-22)
Trending Topics
#8
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We'll have the Apexi ones soon! (Like 1-2 months)
-Josh
-Josh
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Your #1 Dealer for Aftermarket Performance Products
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Your #1 Dealer for Aftermarket Performance Products
Orange County, CA
Email: info@merakiautoworks.com
Text/Call: 213 394 2886
Website: www.MerakiAutoworks.com
#10
Driver School Candidate
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When i was looking at GSFs a couple years ago i was also looking up exhaust modifications. I found replacing the mid-pipe produced the sound i wanted. They said there was next to no drone and it opened up the sound nicely. i also personally liked how the exhaust looked stock from the outside as well.
Once again I'm looking at exhaust modifications before i have even bought a car (searching for caviar/black at MSRP).
Link to mid-pipe https://gthaus.com/product/cat-back-...section-sus-3/
Once again I'm looking at exhaust modifications before i have even bought a car (searching for caviar/black at MSRP).
Link to mid-pipe https://gthaus.com/product/cat-back-...section-sus-3/
#11
#13
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When i was looking at GSFs a couple years ago i was also looking up exhaust modifications. I found replacing the mid-pipe produced the sound i wanted. They said there was next to no drone and it opened up the sound nicely. i also personally liked how the exhaust looked stock from the outside as well.
Once again I'm looking at exhaust modifications before i have even bought a car (searching for caviar/black at MSRP).
Link to mid-pipe https://gthaus.com/product/cat-back-...section-sus-3/
Once again I'm looking at exhaust modifications before i have even bought a car (searching for caviar/black at MSRP).
Link to mid-pipe https://gthaus.com/product/cat-back-...section-sus-3/
#14
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Back in the day we engineered the perfect sounds & performance for the IS F / RC F / GS F with our siamese X Pipe design. Borla came out way after that…
![Stick Out Tongue](https://www.clublexus.com/forums/images/smilies/tongue.gif)
Additional sound characteristics are also controlled by the type of Resonator & Muffler designs.
How long, how much packing material, baffled vs non baffled… etc etc
![Wink](https://www.clublexus.com/forums/images/smilies/wink.gif)
For example we used different muffler designs on the IS F vs RC F & GS F based on application differences on bumpers and exhaust tip diffusers.
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Joe Z
#15
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We'll have to wait and see what other companies have in the works for the 500.