Holden's Commodore VT VZ SV Exhaust System is available in a number of different options, including a straight pipe, a megaphone style exhaust, and a V-Turbo system.

The straight pipe option is the most affordable and simplest to install. It consists of a single pipe that runs from the engine to the rear of the car. This option is best for people who want an easy installation and don't care about sound or performance. You can also visit at https://xforce.com.au/products/make/holden for more about Holden's Commodore VT VZ SV Exhaust System.

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The megaphone style exhaust is Loudest and has the best sound quality. It features two pipes that run side by side from the engine to the rear of the car. This option offers great sound quality and performance, but it can be more expensive to purchase and install than the straight pipe option.

The V-Turbo system is the most expensive option, but it offers the best sound and performance. It features three pipes that run from the engine to the rear of the car. This system delivers great sound and performance, but it can be difficult to install. The Downpipe's design makes it perfect for the street, but if you're looking for a more powerful sound on the dyno, this pipe will do it. 

The Street Downpipe features five pipes that run from the engine to the back of the car with a straight exit. This exhaust has less sound at high RPMs and can be difficult to install depending on what kind of engine you have.