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i payed $115 for mine, that was parts and labor. i got a Cat-Co. come to find out those jerks cut the flange off of my down pipe thus voiding my warranty for my header. i hate idiots. i need to go back and have a little chat with them.
 

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Discussion Starter · #6 ·
well, my midpipe has a leak in it right now. so if i were to replace it, i'd rather get something better. really, only a 1 hp gain with a testpipe? i thought that it actually made a noticeable difference in turbo charged cars. not alot, but more so than say a K&N air filter, right? if i get a free-flow cat, i still need to replace the piping right? what do you guys think? and what are the price comparisons. thanks.
 

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Basicly it is 1-2 hp with a test pipe. (differece between that and a high flow cat) You can get bolt on hight flow cats, it would make a differece; but I also recomend replacing the rest of the exhaust also as that will make a bigger differece if you still have stock or less than 60mm.
 
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