I installed these berks HFC'S yesterday so they have been on for almost 2 full days . please tell me this noise RASP goes away. I have full megan racing exhaust and HR megan racing y-pipe.This is a sedan also. is this just part of the break in process ...

bro you gotta give it a lil more than 300 miles to break em in! haha

also i am not sure for the sedans, but for the coupes if you replace the ypipe/hpipe with the magnaflow mufflers the hfcs sound a lot better, no rasp or drone (i hope in my case)

I put Berks on last weekend and I have no rasp at all. Just a deep beautiful sounds... louder than before but no rasp. I also have mrev2/spacer/z-tube/pop charger and fast intentions exhaust. I haven't hear of a rasp problem with Berks before. Was your exhaust raspy before?

i have the berks with a greddy sp2. don't consider raspy as much as i do a deeper sound. haha just drive around and break em in and u should be happier.

berks do give you a deep sound. it depends on the aftermarket exhaust you get. i personally think exotic speed exhaust and the invidia sound good. the nismo exhaust also sounds good, i like the deeper sound.

yes all those are good exhaust, i also like the fubijitsu exhaust as well. has anyone else ever heard someone say yup i can tell you have the berks on it. has happened to me a few times now

my berks rasp bad i have the Power house Amuse exhaust so theres not too many people that can tell me if its normal or not. i wish more people would get this exhaust.

mine has slight rasp, but im sure the exhaust enhances that rasp (greddy sp2). lol i heard on saturday when i was cruising with a friend, "yep i can hear you have the berks on here". hahaha like wth is that??!!?? lol

I have / had stillen HFCs on my stillen catback and it was raspy as allgetout. Turned out to be leaks where the extensions were placed. Welding those shut helped with some of it. There was still a little performance related zip to it but it cut back on a lot of the badness.

I think guys were saying the ceramic coated HFCs eliminate rasp- also considered resonators.

your rasp levels will all depend on what exhaust you have ur HFCs too. sine you're running the Megan catback, you're pretty much screwed on sound tuning. big piping diameter w/one small bottle-style resonator and muffler.

hey guys, the OP had gotten annoyed with the rasp and posted his berk hfcs for sale, which i happened to pick up. anyway, i am running these berks with the hks replica / x02 exhaust. i also removed the y-pipe that this exhaust comes with it, and welded in an x-pipe/muffler from magnaflow. The exhaust note is a very deep sounding with no rasp! i personally love how my exhaust sounds now.

dang he sold his that quick?!?!? does anyone consider the nismo s-tune as raspy cause thats exactly what my exhaust/hfc setup sounds like

I think people can tell you have HFC's because the suck/hiss sound, not so much by the tone. I love mine with my setup. I liked it a lot before the Berks, but now the sound is more way more soothing.

oh ya i mean they always say how good it sounds. ya its definately more so the tone. i only have a small rasp for literally like 2500-3000 rpms and thats it lol

Hahaha i have the same exact same setup i have berks hfc and greddy sp2 with a top speed y pipe and oem mid pipe with a vibrant resonator removed the oem resonator n jesus it rasps around 4k -___- , thinking of getting a godspeed exhaust with megan test pipes ive seen this clips sounds good what do you guys think?

http://www.youtube.com/watch?v=MOD4BBmwHLE