Exhaust opinions

[Kirk]

i got a 3 inch cat back and I’m trying to decide if I wanna do a 3 inch or 2.5 inch down pipe. I’m just tryna see if people have any experience with lack of backpressure with the 3 inch or if it even matters

 

[sunofwolf]

you might as well go for the 3",

 

[Kirk]

you might as well go for the 3",

That’s what I’m thinking

 

[sunofwolf]

You want the same size though out the exhaust!