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Honda Accord V6: Custom exhaust to reduce sound levels on the go

If you are unaware of what this is, it's basically a replacement for a short section of your exhaust system maybe about 12-15 inches in length that has a branch attached to it which is controlled by a valve.

BHPian ImportedlLama recently shared this with other enthusiasts.

This post is a short one as I just needed some advice and guidance from the more experienced members of the forum and possible people with some connections in my area. I reside in Bangalore in the JP Nagar area and am having a dilemma. For a while now I've been wanting to unleash my very muffled high displacement V6 accords throaty roar but with that, I have a few concerns

  • I don't want the car to become a cop magnet
  • I want to keep costs as low as possible (not much a 19-year-old can really afford on his own)
  • I want to preserve the quietness of the stock exhaust because who wants a loud roar 24/7

With these 3 points in mind, I figured the best way of going about this is a cutout exhaust system. If you are unaware of what this is, it's basically a replacement for a short section of your exhaust system maybe about 12-15 inches in length that has a branch attached to it which is controlled by a valve. What this system allows is the stock exhaust sound when the branch is closed but when the valve to the main exhaust is shut off it opens up the diverging branch and allows for the exhaust to flow freely. This will ideally be placed right before the two heavily restrictive mufflers. The exhaust forms sort of a Y shape and right before it branches into the two mufflers is where I will place this. I will attach pictures for reference to help make this a little less confusing.

This is the cutout system.

I plan on installing this right after the center box and right before the two mufflers on the small straight section.

I've spoken to a Code 6 center and they stated that the first problem that they will face is welding mild steel to stainless steel, which is possible so I don't know why that would be a problem and also the cost if it were possible theoretically is around 30k which is out of my budget.

My idea is to get the cutout system from the USA since it's virtually non-existent here and the Valvetronic system available is just muffler replacements so I'd have to get two of them which would make it really expensive. The US cutout part is around 100 USD which I can fit into my budget. Since welding was stated to be a problem finding someone who is willing to weld and more importantly a good price is also tricky. Hence what I plan on doing is using exhaust clamps which I've seen done before in a donut media video, and doing everything on my own. For this, I would first require the part to be brought in from the USA along with the exhaust clamps. Then I would need a shop or a place to work that has an angle grinder and other tools that I would need to do this. Then I would basically do a really sketchy redneck engineering job of cutting out a section of the exhaust and clamping in the cutout valve system. But hey what's life without doing dumb stuff like this every once in a while? The worst-case scenario for this in my head would be that it doesn't work and I'd just have to weld back in the piece that I cut out which I'm sure someone could do for cheap.

This is my current thought process. I come to the members of this forum to tell me if this is a good idea and to help me rationalize it. Any other suggestions are welcome and if anyone knows somewhere where I can work on my car nearby that would also be very helpful. And please do let me know if anyone else has a better idea that will fit in my budget it would be very appreciated.

Thanks for your time everyone, Cheers!

Here's what GTO had to say on the matter:

You're sailing in the right direction. Go for it. A BHPian had a similar remote-controlled exhaust on his SX4.

Besides, loud exhausts can get tiring on long highway drives.

Read BHPian comments for more insights and information.

 
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