We install a new exhaust on this otherwise stock VE SS Calais V Wagon. How much power does in actually add with no other modifications?? Watch and find out!

#holdenSS #LStheWorld

Become a channel member!    / @boostgumps  

Merch! - https://www.boostgumps.com/
Work! - https://www.onsongperformance.com/
Parts! - https://www.ospwarehouse.com/

!!**SUBSCRIBE**!!
!!**SUBSCRIBE**!!
!!**SUBSCRIBE**!!

Follow us!!
INSTAGRAM
- boostgumps
- onsong_performance
FACEBOOK
- onsong performance
TIKTOK
- boostgumps