I was thinking about deleting the set of mufflers that are just in front of the rear axle.

Anyone done this? Results?

 

I just did that on my xj6 yesterday. Gives it a bit of a deeper sound but not too much.

 

That is exactly what I am hoping for.

Thank you for the info

 

I have to get emission tested here in boise ID. and I was curious if you delete the two back mufflers or the middle will it effect the emissions of the vehicle? also will it give the car a performance boost?

 

It would have zero effect on emissions.

It would have a very minimal positive effect for power, probably not enough to feel. I'm going to do it because I want a little more volume of the exhaust, but not a loud exhaust.

It seems that from the people in the know (avos, etc), there is not a lot of power that can be gained from deleting just one set of mufflers. You would likely see a tiny bit more by also removing the front muffler and exchanging it for an x-pipe. The engineers did a pretty good job overall designing these cars.

It is my understanding that the rear mufflers are very similar construction to the borlas, which is why I'm choosing to remove the middle two and leave the first big one, last two and tips in place.

 

Removing the resonators (middle mufflers) it will not effect emissions but will affect the emissions test as the inspector typically looks under the vehicle with a mirror.