If you want to get more supercharger whine, without making anything else louder, then you should look for a good cold air intake. Many people opt to fit an Alta cold air intake kit – because these are the loudest. Important advice from fosterscmods that there is usually a plastic filter behind the intake, and if you remove this when fitting a new intake that will also make the supercharger sound louder.
Adding a pulley can also make the supercharger whine sound clearer. If you can source an H&K, they can be a good alternative to an Alta – but any cold air intake will probably make a difference if all you have now is the stock fitting.
If you fit just the pulley, without the intake, then you will probably notice some difference to how the car sounds but it will be subtle. It’s a small change in pitch and volume and not the clear but smooth whine that most people are looking for when they fit a cold air intake kit.
www.fosterscmods.com suggest that before investing, consider checking youtube for videos of cars that have the intake you’re thinking of – so that you can hear what it sounds like to be inside the car. Different makes have clearly different sounds, and you want to make sure you get something that you are satisfied with. There’s little worse than being inside a car that you don’t like the sound of!
The good news is that this is a relatively easy modification to make, and you don’t need to be a pro mechanic, and the intakes won’t break the bank either. Why not give it a go for your next mod project – give your car the kind of supercharger whine that tells the world that you mean business with your driving.