Im confused about the muffler part. So should i get the muffler's or the pipping too? A friend told me i should get 2.5 pipping so its better. If i get the mufflers could they customize it to 2.5 for me? Or what are some of the sizes you guys use for the pipping. Ty in advance

 

Isn't stock piping 2.5?

 

i thought it was 2.25??

 

Stock Piping is 2.25.