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K&N vs fully stock vs RotoFab
This is a update to a thread I wrote a few days ago. I had my car dyno tested stock. Then I added the K&N carbon fiber air intake. Then I added the RotoFab. My initial thoughts on the K&N were good it made a killer supercharger whine. Unfortunately the horsepower #s weren't so good. I actually lost horsepower and gained a little torq. I then ordered a RF and I have to say it is everything they said it is. The quality of the kit is much better IMO. And the dyno #s made me very happy. All runs were done at the same shop on different days the K&N pull and the RF were both done on almost identical weather conditions although they both were about 10 degrees hotter than the stock pull day. Stock best made 488hp 494 torq. K&N best made 482hp 499 torq RF made 509hp 499torq hood closed 519hp 505torq hood open.
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