Muffler delete. Questions

[Brandon123]

First off, yes I know it is less than legal. Second, what is the easiest way to remove the muffler and/or are there any ways that are a big no no? Third, how difficult is it to reattach the muffler after it is removed? Fourth, is it even possible to reattach it, in a way that will make the car inspectable? 

[enigma-2]

Engine is tuned complaint to the OEM exhaust back pressure. From what I've read, modifying the exhaust changes timing (slightly), I think it changes the fuel trims, and the emissions. Believe the engine  scavenging is based on the back pressures in the exhaust. Don't know if or how much the systems can compensate.

 

As for how hard, crawl under car and look for yourself. (Dont know what your mechanical ability is.)

 

My recommendation? Don't. Lot of work and you can't drive the car on the street.

[Brandon123]

Most my mods aren't street legal. what's one more gonna do lol. Would a change in the timing cause the exhaust to pop? because that's exactly what i'm looking to do. 

Edited December 23, 2024 by Brandon123

[dolsen]

On 12/23/2024 at 4:39 PM, Brandon123 said:

Most my mods aren't street legal. what's one more gonna do lol. Would a change in the timing cause the exhaust to pop? because that's exactly what i'm looking to do. 

popping comes from excess fuel in the exhaust, AKA running rich. I suppose changing timing could do that but I wouldn't rely on that as a way of forcing it because I am not sure it would work. I would think removing the cats is more likely to cause popping than removing mufflers, because the cats cannot burn off the combustion components if they are not installed.

 

Also, you could cut the exhaust at a point that is straight for 6"+ and then use clamps to put the mufflers back on as needed

[Brandon123]

On 12/28/2024 at 2:30 PM, dolsen said:

popping comes from excess fuel in the exhaust, AKA running rich. I suppose changing timing could do that but I wouldn't rely on that as a way of forcing it because I am not sure it would work. I would think removing the cats is more likely to cause popping than removing mufflers, because the cats cannot burn off the combustion components if they are not installed.

 

Also, you could cut the exhaust at a point that is straight for 6"+ and then use clamps to put the mufflers back on as needed

Ok thanks. I'll look into that