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Discussion Starter #1
Hey you guys I was lookin at catback systems but decided to go with the straight through rs muffler. all the catbacks I was looking at had 2 1/4 piping which is the same piping on my car right now. The performance muffler give 7-10 horsepower increase. good buy??
 

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Discussion Starter #3
just reading the description
 

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wait...you already have 2.25 piping on your car?!?! cant be stock. and a performance muffler will maybe give your car 3-5 vs stock. which if you have stock muffler on your car with 2.25 pipe. umm
 

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Yeah that can't be stock (stock is 2"). Unless you really hate the sound of the exhaust that you have now I would say keep it and use the money for some new headers and Cat.
 
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