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Originally Posted by OTW Z-Boy
So what are the advantages and disadvantages between high flow cats and test pipes is it only the restriction on air flow? Almost double the price between the tps and HFCs
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TP's make more power. The reason why they are so cheap is because they are basically just a straight through pipe. The problem with most test pipes is the rasp/loudness, and the hiss the engine makes is very noticeable. Not to mention the possibility of SES light coming on. And depending on what state you live it TP's can make it very hard if not impossible to get a sticker. I say get HFCs first, and TP's after. That way you can get a sticker, and just change them out accordingly