My First Load of 2021....389 Pete with ISX and 7in Straights 

Best sounding ISX I've heard on here, very nice!!

Nothing sounds better than rolling into the throttle on a big ol diesel!

Your truck sounds totally good bro and I totally support u all da way home bro straight facts

Much love and support for u homie straight facts 💯 and be safe out on da highway bro straight facts 💯

Beautiful sound thanks for share

I think your videos are just perfect buddy

I have a 2015 prostar with the same engine. My plan is to run 7 or 8 inch straights up behind the cab on it. That Pete sounds good

16:58 That snort for the Jakes very soothing 😬

So where's the Jake brakes??? Great sounding truck I love Cummins they my favorite 😀

respect to the long journey truckers

Sounds good

How much HP and TQ you got under that Thang it sounds really nice

😍👍

even my little supra no match with that kind of fathers exhaust system..... ROARRRRRR!!!! i got to go...can hear your big fat Jakey from the top hill

Yea your videos are perfect bro, I have the hero 8 but you’ll be having a hard time with a GoPro honestly, it can’t record for long periods of time

i dont dare to drive , ride, racing, running, cycling, or even standing in front of you LOL..........can hear you coming MILES away.....you have been warn!!!

Pdi turbo?

can i get my engine deleted when i get my peterbilt 389 and with 7inch stacks to make it sound like yours

Great video is this one of the newer type ISX meaning 2013 coming up and how was your delete done.

What kind of fuel economy?

so its deleted with 7in straights?

HUMMM A 2021 PETE 389 with an ISX????? Did you mean X15? How can you not know this?