Peterbilt Jakin' In SF tunnel with straight pipes! 

Heaven on earth my friend!

that is what i talking bout ya cuxttt..........dat is so awsomeeeee

Me and this guy would be good friends.

man that jake its quiet..... the people in CHINA bearly heard it xD... now thats is awesome

it opens a extra exhuast valve which in turn stays open and lets all the pressure from the piston going up out. which like you said slow vehicle.thers more then one type actually.

I love trucks but I have driving next to them on that stretch of 101

I used to have a cop loudspeaker hooked up to my CB. When I'd catch someone drifting, I'd shout out "OH SHIT NO BRAKES" and watch them floor it and straighten up, looking around to figure out where the voice came from.

maaann that sounds SICK! scare some sense into them four wheelers!

Nice sound, when there is no eng brake sighns alot of ppl just put the jake on just cuzz it says not to, i would to jakes sound f****** awsome

Sounds good!! You know the poor guy in the red car at :33 was right beside those pipes when the jakes came on. Bet he was like What the Hell?!!!

Very nice..

thats awesome. i would love to see the expression on the guy in the red cars face

This is incredible

NOW THATS A GOOD JAKE BRAKE LOL

lol love that sound

YES!!!! Awesome!

Good sound. Getting a bit sea sick from all the bobing up & down & side to side.

what exactly does the jake do? from what i heard it adds back pressure slowing the pistons thus slowing the whole vehical?

I hate it when they put up "NO ENGINE BRAKING" signs...

would you prefer a 3406B in that truck.

i guess you had the camera mounted to the steering wheel...lol

lol, that's loud. you should've honked the horn just to make it louder.

who the fuck is working the camera ?? Ray Charles !

@bionictrucker1 thats a big 10-4!!!

HAHHA! pull up behind a granny!!!!!

what tunnel?

Hot dayummm

Its a 1980 359 with a 400 cummins

Yeah Yeah Yeah

hahahaha damn i love that shit

holllllly shit that was sweet

@REDPWR4EVR to me i think only at the signs not throughout the city but hey its only illegal if you get caught.:)

sweet!!!

You just KNOW the driver in the red car shit theyselves, bah ha ha. Wish the clip was a bit longer.

ohh there pissed lol

"0:27 prepare to lose your ears"

2018

@REDPWR4EVR that when you do it anyway ahaha

bet the guy in that red car shit his pants lol nice jake....

Holy fuck time to upgrade cameras bud!

lol