2.25" or 2.5" muffler?

[brian_d]

I have the Borla XR-1 40941 installed on mine.
its 2.5 in and out
took the guy at the shop about 30 minutes to install with the new pipes

 

[pengwin]

I got a 2.5" Borla also, but only because they didn't have a 2.25" option. I am going to replace my Borla soon, and will have the option of 2.25" or 2.5". I know both will work, but is there any benefit of one over the other? I will not be doing the work myself, so the ease of installing the 2.5" because it just slides over the stock pipe, is not a benefit. I am concerned more about the performance or sound of one over the other.

 

[Youngbuckcody]

Hey everyone I need some help !!!! Lol for the people who changed their pipes and muffler to 2.5 in did you gain any hp or gas mileage ? Did you loose any ? And what about the people who slid muffler over stock pipes any difference ? Lmk thank you Cody

 

[SouthGA4runner]

I have the 2.5" magnaflow. Paid a shop to install it (I don't have a welder) while I stood and watched.

He slid it right in over the other pipes, welded around, and it was done. 20 minutes.

i think i'm going with the same one 18" magnaflow. How much did they charge you for install?

 

[Dee3]

I've had lot's of exhausts welded up and usually 15 dollars at my local muffler shop if I can't get it in the shop at work. Takes 15-20 minutes for them to sawzall/torch off the old muffler, bell the inlet/outlet on the new muffler to slip over the stock piping and maybe weld a new hanger up or some new pipe depending on how yours looks. Very quick and easy for a shop with a lift to weld on a muffler. Can't see it costing more than $25 unless you need some new pipe or they have a minimum charge or something.