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Discussion Starter · #1 ·
Recently a friend of mine said he switch to Moroso spiral muffers from Flowmaster 40 series and gain 2 tenths of a sec at the track. Anyone think there's truth to that or is it just the way he drove that particular day?
 

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i kind of doubt that switching mufflers is worth 0.2 at the track since flowmasters are pretty good. probably just his driving.
 

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probably driveing...but the moroso muffler flows better than the flow 40,so maybe....
 

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Just a muffler change is doubtful unless it was the same exact day, temperature, weather conditions were the exact same, engine was the same temperature. If it was on two different days, then it'd be his driving. The same exact car with the same exact parts will run two different times on two different days.
 

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Discussion Starter · #5 ·
Yeah I'm thinking it's driving too. Its time for me to replace my cat back section in my exhaust and Moroso spirals are alil cheaper than 40s. Thanks for the input.
 
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