true duals?
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ive been told by mant its either like 2 horsepower or there is no power diff at all...i was told by every single shop here locally in my town(liek 5 shops i asked) they all said that there is no difference true dual will be a little louder......my friend has the exact same truck as mine we both have the same company exhaust except mine is si/do and his is true dual and his is just barley louder than mine.
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Originally Posted by ParkM
Your 98 has 4 cats though, his '07 has 2,