Will two mufflers can make any different on a chevy impala LS 08?

[fella]

i wanna know if by adding another muffler on the exhaust can make improve the car performance or anything.
i wanna know if by adding another performance muffler which i already have one will increase the car performnace or accelaration

 

[Impala39]

When you put aftermarket muffler on what brand and what inlet and outlet size did you get

 

[zora]

You have to measure the outside diameter of the pipes to be sure but this site lists it at 2" inlet 2 1/4" outlet
http://www.summitracing.com/parts/wlk-21570/overview/year/2009/make/chevrolet/model/impala.

 

[zora]

i wanna know if by adding another muffler on the exhaust can make improve the car performance or anything.
i wanna know if by adding another performance muffler which i already have one will increase the car performnace or accelaration

Adding two to one pipe will increase restriction and lower performance.

 

[Suburbanized]

^ as most exhausts do restrict performance. If you want noise, open headers!