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Originally Posted by jlw2546
Installed my non resonated hfc's and Carbon fiber CBE with 12 inch resonators on Monday and Tuesday. Yes, I took my time. Lol. Installation of the hfc's were a bit frustrating. Those bolts were a bitch to get loose. Had to use 1/2 drive stuff. Also had to remove the steering knuckle to get the big stuff on the bolt. The CBE went on perfectly and fit and finish is top notch. I also installed an R2C intake as well. Went for first real drive today and all I can say is that it sounds amazing. It is loud. I think it is louder inside the car than outside the car though. Not a bad thing. Nissan definitely needs to work on their sound deadening material. No rasp at all but there is definitely drone, especially at around 50 to 60 mph. Guess i will just have to go faster. The hiss is annoying but I can live with it. No hiss as long as your on the gas. I will be on the gas a lot. Great product Tony. Anyone thinking of purchasing this product it is well worth it.
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Great to hear that you have it installed and are happy. I want to touch on a few points to put the mind at ease.
1) The Drone will subside about 10% once everything is broken in. At about 250 miles or maybe less, you will see it quiet down somewhat.
2) The hiss is normal under deceleration. Thank Nissan and the VVEL for that! To some it is annoying and most are impartial. Give it time, it will grow on you and you will not even notice it after time. It is definitely more noticeable with aftermarket cats opposed to stock cats!
Thanks for the support and Happy Holidays.
Tony