mufflers are designed and engineered for specific airflows and waht not, A) it will sound SUPER SHITTY on a car, your car doesnt have a 1.5" stroke, and doesnt wrap up to 15000rpm, B) What power you have in your car will DIE with a muffler like a supertrapp which if im not mistaken is a completely seald unit that lets the exhaust escape through some baffles.
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