4” Vs. 5” Exhaust Comparison, Stage 1 KC Whistler on a 2015 F250 6.7. In cab, Idle, & Drive-Bys.

[@KyleMonahan-z9f]

What rear end gear ratio are you running ?

[@Cam38352]

What size tip on the 4 inch is that?..Thinking about doing 4 inch full exhaust on mine with a 5 or 6 inch black tip.

[@d.williams6891]

@@Cam38352 Excellent choice!! The one I have is a 4” ID to 6” OD and it’s the 18” long MBRP tip. I really love the look of the 6” tip and I got the long version to put it out a little past my bumper and not have such a rapid change from the 4” pipe to the 6” tip. If you’re interested, I did a little showcase on that tip if you want to take a look. It may give you an idea of if you think you’ll like it! 🫡kzbin.info/www/bejne/qJDbdKmVo85kqpIsi=BvDHBK-4QGXMrfwJ

[@KyleMonahan-z9f]

What rear end gear ratio are you running ?

[@d.williams6891]

@@KyleMonahan-z9f I’ve got the 3.55 gear ratio in mine! Thanks for stopping by!