Diesel Performance Specialists

Workmanship second to none. Our stainless steel custom exhausts not only look the part, but they unlock the true potential of your 4X4

State of the art software, 100% Australian designed. The most flexible dyno option, with the ability to tune RWD, FWD and AWD vehicles.

Unleash the inner beast with top brand equipment, expertly installed and guaranteed to induce 4x4 envy from your mates

What our customers say

Huge thanks to Garth, Luke, Scott and the boys at GSL. Got them to install NPC 1300 clutch, unichip, remap and 5inch dump into a 4 inch single exhaust. Would recommend GSL to anyone looking to get work done for their 4WD!
Jack Duff
Luke and Scott put in the long hours to get my car ready and made sure that even the most fussy owner would be impressed. When they say the "300" kit, let's just say they mean it. Car likes to get up and boogie now.
Jack Boers
Big thanks to Garth, Scott and Luke for the awesome effort they put in to the big build on my ute. Even though I lived so far away you made the process super easy and kept me updated every step. Cheers boys! Would highly recommend, these boys know their stuff!!
David Scanes
Bought a beautifully made GSL 200 series exhaust. Sounds great and has improved economy and performance.
Drew Barlow
I couldn't be happier with the friendly service, wealth of knowledge thats these great blokes have. I had the gsl team fit a unichip and live tune. I now have a totally different truck.
Matt Wilson