There are a lot of questions around .....should I go with a 2.5" exhaust or a 3" exhaust, so here is what I think!

Gibson we know makes the best over all aftermarket cat back exhaust (Swept Side)if you are wanting the most gains in HP and Torque without a lot of noise...Very True!

Then if Gibson is using a 3" single exhaust cat back system to get these best gains...and they are, why are some of us going to a 2.5" exhaust?

Just my .02 Canadian cents I guess!