HGS 4T SILENCER Yamaha Yz 450f 23-25

HGS Exhaust Systems was formed in 1988, founder Henri Gorthuis had gained valuable experience and insight working as a Grand Prix Mechanic in the early 80’s.

As with all performance companies during the “Two-Stroke-Era”, HGS focused it efforts on producing high performance four stroke exhaust sytems that were manufactured to an extremely high standard while still providing significant power gains. HGS exhaust systems are “bolt-on” products and require no modification for fitment.

HGS is based in The Netherlands which is well known for it’s heavy sand tracks. This is where HGS is taking there products to the ultimate test! That’s the reason HGS exhaust systems are highly regarded by many GP teams and privateer riders competing at different levels of competition.