The new Large Bore-HD exhaust is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4” stainless steel tubing for maximum flow, increased horsepower, increased torque and lower EGT's. This system is available in 4” cat-back with muffler. Large Bore-HD exhaust systems are the perfect combination of performance, fit and value. For over 40 years, MagnaFlow has maintained its position at the forefront of high-end catalytic converter and performance exhaust manufacturing. MagnaFlow stands by its products with industry-leading warranties in service of its mission to provide the highest quality exhaust experience from start to finish.

The team at Sandgate Auto Electrics are well-versed in all things automotive which has led to them becoming the go-to for car lovers in the northern suburbs of Brisbane, South East Queensland. As a family owned and run company, who are local residents themselves, we have gotten to know their loyal clientele and love helping them with the repairs and modifications. Each “receiving” 50mm pipe is crushed in half, squeezed next to the other and welded to the 60mm “feed” pipe. We hope you enjoyed this lighter take from 27WON and find the information helpful the next time you shop for an exhaust system.

We match the exit size to the size exhaust you ordered, so if you are ordering this after the fact, please include the exhaust size you have in your order. Replaces the OEM catalytic converter with a free flowing pipe. Completely straight through (no bottleneck), free flowing mini-muffler and pipe. Replaces the OEM catalytic converter with a 3” metal substrate core high-flow performance cat and our mini muffler. The metal core is our highest flowing cat available and it will&nbsp