Just installed my Berk's HFC's over the weekend
#1
Just installed my Berk's HFC's over the weekend
On Friday my HFC's arrived along with my grounding kit from Sean (SxExCx). After I installed my grounding kit the fun started with the long install of the Berk's. I took them off one by one. The hardest part of the install was the removal of the stock cats. I ended up having to do most of the work in the dark outside in 37 degree weather. Luckily I had a bright little hobby light to work with. Any ways, after everything was all bolted up and back in place I reconnected the battery neg. and started her up. By the way my setup for everything is Z-tube, K&N drop in, 06-07 airbox, and MD 5/16 copper iso thermal spacer for the intake. Exhaust is Berk's HFC's and stock the rest of the way back. Sounds amazing, very happy with the sound output now of the stock exhaust with these cats. Idle sounds more deeper and WOT screams but with the stock sound that we all love. Now I just hope once I get my MD shockwave TDX2 exhaust there wont be any rasp since I've been reading a couple things that say there might be. Guess I'll have to wait to find out. I have a rattle coming from somewhere to at around 2200rpms. I'll fix that in the spring though. Prolly the heat shield cus thats what it sounds like.
Anyone looking to make your stock exhaust sound better and still be able to pass emissions I'd suggest to go with some HFC's. I love them
Anyone looking to make your stock exhaust sound better and still be able to pass emissions I'd suggest to go with some HFC's. I love them
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Z1Motorsports (11-21-2011)
#2
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G35 sedan w/ too much money in mods
#7
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#9
Nice! Did you feel and HP gain wiht the "butt dyno"?
How loud is it now at WOT? Is it a ghetto loud or slightly louder, deeper but still has the unique G35 stock tone?
Any weight difference between the cat's?
Have you heard any rasp with yours?
Any difference in exhaust smell/fumes?
How loud is it now at WOT? Is it a ghetto loud or slightly louder, deeper but still has the unique G35 stock tone?
Any weight difference between the cat's?
Have you heard any rasp with yours?
Any difference in exhaust smell/fumes?
Last edited by 04WhiTe_G_Coupe; 11-23-2011 at 03:27 PM.
#11
I'm not 100% sure, but I think they are 2.5 and they match up perfect with my stock y pipe. Maybe someone can chim in on this one...
#12
Glad things worked out for you. I drive a sedan, but definitely do like the exhaust note on the coupes. Good thing you were able to keep that. I'm currently looking to upgrade to the Fast Intentions resonated cat pipes. I just haven't found any reviews on them, mated with the OEM first gen. sedan exhaust. Let's see how my research goes and what I end up purchasing.
Btw, I had the same exhaust rattle around 2K RPMs that you mentioned above, ripped off my heat shields from the cats and y-pipe, all good now.
Btw, I had the same exhaust rattle around 2K RPMs that you mentioned above, ripped off my heat shields from the cats and y-pipe, all good now.
#13
My Berk HFCs should be here today and getting installed this weekend (had to order new gaskets, hopefully they'll be here by Friday). We have pretty much the same setup, so I'm glad you like the sound of them. I'm pretty stoked about hearing my car once I get them on!
Its nice to know that, thanks Then I will definitely be going with that set up then.
#14
Glad things worked out for you. I drive a sedan, but definitely do like the exhaust note on the coupes. Good thing you were able to keep that. I'm currently looking to upgrade to the Fast Intentions resonated cat pipes. I just haven't found any reviews on them, mated with the OEM first gen. sedan exhaust. Let's see how my research goes and what I end up purchasing.
Btw, I had the same exhaust rattle around 2K RPMs that you mentioned above, ripped off my heat shields from the cats and y-pipe, all good now.
Btw, I had the same exhaust rattle around 2K RPMs that you mentioned above, ripped off my heat shields from the cats and y-pipe, all good now.
#15
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OP Im glad your happy with your HFCs!
In reference to HFCs gutting themselves, any sort of catalyst will burn out under the right conditions, ie. catalyst damaging misfire (in which your CEL will flash), extreme lean/rich condition for an extended period of time etc, a properly maintained car (especially if tuned) should never have issues gutting HFCs. A perfect example of this is rcdash, he is a member here running Cats on his ~500rwhp Twin Turbo G35.
-Rob
In reference to HFCs gutting themselves, any sort of catalyst will burn out under the right conditions, ie. catalyst damaging misfire (in which your CEL will flash), extreme lean/rich condition for an extended period of time etc, a properly maintained car (especially if tuned) should never have issues gutting HFCs. A perfect example of this is rcdash, he is a member here running Cats on his ~500rwhp Twin Turbo G35.
-Rob
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dphillips2011 (03-02-2012)