There's no point. You'll see no difference. Just a placebo effect as its louder you'll thinkits faster. When the cone, more than likely wont be enclosed and will be sitting in engine bay us king in hot air, hot air is bad for engines.
For fas and furious sounds you'll need a bigger engine and 862682 gears
Buy a need for speed game, an xbox console & a small (really really small) tv. Install them all into your car hooking the audio from your xbox into your radio/speakers and then constantly have need for speed on.. There you go.
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