[Throttlesteer14]

There's all kinds of information regarding the various options for modifying the B58 exhaust. Most are to enhance tone, volume, and even a few for performance (dp). My goal is not to piss off my neighbors, but to get a little more power and additional volume. If you were to compare the impact of volume (scale of 10) for each modification, what value would you assign the following:

• Axle Back
• Midpipe
• Downpipe (catted)
• Downpipe (catless)

I'm considering a catted dp and an axle back to get SOME volume, but not overly obnoxious. Thoughts?

[JD11937]

Originally Posted by Throttlesteer14

There's all kinds of information regarding the various options for modifying the B58 exhaust. Most are to enhance tone, volume, and even a few for performance (dp). My goal is not to piss off my neighbors, but to get a little more power and additional volume. If you were to compare the impact of volume (scale of 10) for each modification, what value would you assign the following:

• Axle Back
• Midpipe
• Downpipe (catted)
• Downpipe (catless)

I'm considering a catted dp and an axle back to get SOME volume, but not overly obnoxious. Thoughts?

I've had various versions of all the items on your list and it's a little hard to advise what won't be obnoxious because it's relative to each individual. If you want actual performance gains and not just sound I would start with a downpipe and see how you feel about it. It's definitely the biggest jump in volume but a catless downpipe isn't that expensive and it's pretty easy to install.

After that if you are more or less happy with the volume but want to change tone you can explore different axel backs. I chose to do this last as it's the most expensive of all the exhaust parts. Keep in mind valved exhausts can give you a lot of flexibility too.

The mid-pipe or resonator delete probably doesn't do much for power but it is a decent increase in volume. Not the same level as a downpipe, maybe 50%.

I had a 200cel Downpipe which was great but I ended up going catless and if I had to do it again I would have saved the money and gone straight to catless.

That's my two cents.