Berk Cat-Back Exhaust GB #2!!!

Rob@BerkTech · 08-11-2010, 08:10 PM

Quote:

Originally Posted by BOLIO 671

Hey Rob got a question....Is the Berks exhaust requried to undergo a three hot/cool down cycle before you open it up? I was just wondering whether this applied to all exhaust systems...Was on the FI thread the other day and noticed that one of the members posted that they were instructed by Tony not to open up the exhaust until at least three hot/cold cycles have gone by with the exhaust....

...did some research on that thread and found an explaination from Tony @ FI who stated

"3 hot & cold cycles before hard driving. It will help prolong the internal packing of the mufflers, resonators and tips.

I know that the Berks and FI exhausts are two entirely different exhaust systems, but was wondering whether this applied to all exhausts....especially the Berks.

We'd say it can't hurt, but it isn't an absolute necessity. From our experience we haven't had any issues with our exhaust from people that drive it straight off the install or go straight to the dyno.

Holliday · 08-12-2010, 02:22 PM

Anybody got their exhaust system installed yet? If so you are lucky! time to get some reviews in the exhaust section! woop woop!

Dembflyr · 08-12-2010, 03:14 PM

They tried to deliver mine today. I'm still out of town.

I'm having them hold it and I'll pick it up on my way home tomorrow.
I still won't be able to install it until sometime next week.

This is karma getting back at me for being so indecisive.

zeebra · 08-12-2010, 05:28 PM

So I had my local Meineke today install it for $90... I think a pretty good deal since most performance shops wanted over $200 around here.

Looks: It fits our cut-outs in the bumper perfect and looks really nice. My right tip is probably a couple of mm's lower - not sure if it was partly from shipping or because Meineke did the install and didnt want to try adjusting it for me - it is def not as noticeable as the prior issues - I'll take some pics this weekend so you guys can be the judge. I'm a perfectionist when it comes to cars and it really doesn't bother me but I figured I'd bring it up before the pics show it.

Sound: It's actually much quieter than I expected - again I'm used to the TopSpeed with test pipes on the 350z so its obviously going to be quieter. I'm sure it has to break-in and will add some growl later on but I might need to get HFC's now. But I'll give it a couple of weeks before I purchase anything else. I'll get some sound clips this weekend as well.

So that's a little info from my short time driving it today in between work.

Rob@BerkTech · 08-12-2010, 06:37 PM

Quote:

Originally Posted by zeebra

So I had my local Meineke today install it for $90... I think a pretty good deal since most performance shops wanted over $200 around here.

Looks: It fits our cut-outs in the bumper perfect and looks really nice. My right tip is probably a couple of mm's lower - not sure if it was partly from shipping or because Meineke did the install and didnt want to try adjusting it for me - it is def not as noticeable as the prior issues - I'll take some pics this weekend so you guys can be the judge. I'm a perfectionist when it comes to cars and it really doesn't bother me but I figured I'd bring it up before the pics show it.

Sound: It's actually much quieter than I expected - again I'm used to the TopSpeed with test pipes on the 350z so its obviously going to be quieter. I'm sure it has to break-in and will add some growl later on but I might need to get HFC's now. But I'll give it a couple of weeks before I purchase anything else. I'll get some sound clips this weekend as well.

So that's a little info from my short time driving it today in between work.

Good deal, post some pics so we can take a look at the alignment and maybe give you some pointers on how to tweak/fine tune it.

terbo · 08-12-2010, 10:48 PM

I just had a quick thought about break-in on the mufflers: FI uses straight through glass pack mufflers. These are literally packed with a fiberglass material to halo muffle the sound. From the looks of it, the Berk uses a type which has chambers that cause the audio waves of the exhaust to bounce off the chambers and into each other, canceling themselves out to an extent. It is possible that without a few cycles that the FI style glass packs would not seat properly and you could eventually blow the glass right out of the muffler, although I have not heard of this happening. The Berk exhaust should not require "breaking in". I also could be very wrong about everything I said. What do I know? I'm just a mechanical engineer :P

BOLIO 671 · 08-12-2010, 11:51 PM

Quote:

Originally Posted by terbo

I just had a quick thought about break-in on the mufflers: FI uses straight through glass pack mufflers. These are literally packed with a fiberglass material to halo muffle the sound. From the looks of it, the Berk uses a type which has chambers that cause the audio waves of the exhaust to bounce off the chambers and into each other, canceling themselves out to an extent. It is possible that without a few cycles that the FI style glass packs would not seat properly and you could eventually blow the glass right out of the muffler, although I have not heard of this happening. The Berk exhaust should not require "breaking in". I also could be very wrong about everything I said. What do I know? I'm just a mechanical engineer :P

Very Good info and explaination...

It makes more sense the then the explaination that was given in the FI thread....Your explaination acutally paints a picture of why the FI Exhaust would need to go through the break-in period

370Zsteve · 08-13-2010, 01:25 PM

Quote:

Originally Posted by BOLIO 671

Very Good info and explaination...

It makes more sense the then the explaination that was given in the FI thread....Your explaination acutally paints a picture of why the FI Exhaust would need to go through the break-in period

everything I've ever read about glass-packed exhausts (at least on bikes) indicates that glass packs need to be replaced over time...

Glad I didn't go with FI.

Dembflyr · 08-13-2010, 06:35 PM

I picked mine up today. I posted a quick review here... BERK Catback Exhaust System installs/reviews

I just have a few questions...

What the hell are these? Are they important? If so, then I am missing one bolt.

What was in that Box?

ZoomtoZ · 08-13-2010, 06:40 PM

I just opened up my box and didn't see anything like that in there. I'm going to double check through all that packing paper again.

Justin1686 · 08-14-2010, 12:11 PM

UPS dropped it off yesterday, AS i was walking out my door to go to work. installs on tuesday, cant wait.

370Zsteve · 08-14-2010, 02:28 PM

Quote:

Originally Posted by Dembflyr

I picked mine up today. I posted a quick review here... BERK Catback Exhaust System installs/reviews

I just have a few questions...

What the hell are these? Are they important? If so, then I am missing one bolt.

What was in that Box?

Looks like extra junk got into your box, mate.

onzedge · 08-14-2010, 04:15 PM

I am installing mine tomorrow first thing. Was it worth the wait??? Probably.

Dembflyr · 08-14-2010, 06:06 PM

Quote:

Originally Posted by 370Zsteve

Looks like extra junk got into your box, mate.

Yeah. That's what I figured. It's better than not enough stuff.

terbo · 08-14-2010, 06:25 PM

UPS tried to drop mine off Friday but ko one was available to sign for it. Means I have to reschedule my dyno appointment for later in the week.

08-12-2010, 02:22 PM	#542 (permalink)
Holliday Track Member Join Date: Aug 2009 Location: Cache, OK Age: 38 Posts: 916 Drives: in the fast lane.... Rep Power: 17	Anybody got their exhaust system installed yet? If so you are lucky! time to get some reviews in the exhaust section! woop woop! __________________

08-12-2010, 03:14 PM	#543 (permalink)
Dembflyr Track Member Join Date: Feb 2010 Location: Indiana Posts: 886 Drives: G37S Sedan Rep Power: 16	They tried to deliver mine today. I'm still out of town. I'm having them hold it and I'll pick it up on my way home tomorrow. I still won't be able to install it until sometime next week. This is karma getting back at me for being so indecisive. __________________ 2012 G37S Sedan 6MT - Project Practicality 2009-6MT-Sport/Touring-Dembflyr's Journal-TT Build Thread-CAR IS SOLD

08-12-2010, 05:28 PM	#544 (permalink)
zeebra Base Member Join Date: Feb 2009 Location: Florida - Boca Raton Posts: 60 Drives: 09 Mag Black 370z Rep Power: 16	So I had my local Meineke today install it for $90... I think a pretty good deal since most performance shops wanted over $200 around here. Looks: It fits our cut-outs in the bumper perfect and looks really nice. My right tip is probably a couple of mm's lower - not sure if it was partly from shipping or because Meineke did the install and didnt want to try adjusting it for me - it is def not as noticeable as the prior issues - I'll take some pics this weekend so you guys can be the judge. I'm a perfectionist when it comes to cars and it really doesn't bother me but I figured I'd bring it up before the pics show it. Sound: It's actually much quieter than I expected - again I'm used to the TopSpeed with test pipes on the 350z so its obviously going to be quieter. I'm sure it has to break-in and will add some growl later on but I might need to get HFC's now. But I'll give it a couple of weeks before I purchase anything else. I'll get some sound clips this weekend as well. So that's a little info from my short time driving it today in between work. __________________ 2009 MB Sport Package 370z For Sale 31k miles $24,000

08-13-2010, 06:35 PM	#549 (permalink)
Dembflyr Track Member Join Date: Feb 2010 Location: Indiana Posts: 886 Drives: G37S Sedan Rep Power: 16	I picked mine up today. I posted a quick review here... BERK Catback Exhaust System installs/reviews I just have a few questions... What the hell are these? Are they important? If so, then I am missing one bolt. What was in that Box? __________________ 2012 G37S Sedan 6MT - Project Practicality 2009-6MT-Sport/Touring-Dembflyr's Journal-TT Build Thread-CAR IS SOLD

08-13-2010, 06:40 PM	#550 (permalink)
ZoomtoZ Base Member Join Date: May 2009 Location: Ohio Posts: 46 Drives: 09 370Z PG A7 T/S Rep Power: 16	I just opened up my box and didn't see anything like that in there. I'm going to double check through all that packing paper again. __________________ 09 PG 370z AT Sport, Touring 30% Window Tint, Clear Bra, Kenwood DNX7140 w/rearcam, Injen Intakes, MR Works Headlight mods, Carbon fiber fang cover, Berk CBE.

08-12-2010, 10:48 PM	#546 (permalink)
terbo Base Member Join Date: Nov 2009 Location: Louisville, KY Posts: 143 Drives: 09 Nissan 370Z PW M6 Rep Power: 16	I just had a quick thought about break-in on the mufflers: FI uses straight through glass pack mufflers. These are literally packed with a fiberglass material to halo muffle the sound. From the looks of it, the Berk uses a type which has chambers that cause the audio waves of the exhaust to bounce off the chambers and into each other, canceling themselves out to an extent. It is possible that without a few cycles that the FI style glass packs would not seat properly and you could eventually blow the glass right out of the muffler, although I have not heard of this happening. The Berk exhaust should not require "breaking in". I also could be very wrong about everything I said. What do I know? I'm just a mechanical engineer :P

08-14-2010, 12:11 PM	#551 (permalink)
Justin1686 Track Member Join Date: Apr 2009 Location: Nassau, NY Age: 38 Posts: 689 Drives: 09 370 PG AT Rep Power: 17	UPS dropped it off yesterday, AS i was walking out my door to go to work. installs on tuesday, cant wait. __________________ 2009 Touring & Sport Package \|\| Platinum Graphite \|\| 40% 3M Tint \|\| Xpel Clear Bra \|\| Berk CBE \|\| Berk HFC \|\| Stillen Sway Bar \|\| H&R Spacers \|\| Swift Springs \|\| SPC Rear Camber Kit \|\| Thanks to Savage Autosports, VTR, PM, and R.A.D.

08-14-2010, 04:15 PM	#553 (permalink)
onzedge A True Z Fanatic Join Date: Apr 2010 Location: Battle Lake MN Age: 64 Posts: 183,964 Drives: 370Z 240Z Rep Power: 2684736	I am installing mine tomorrow first thing. Was it worth the wait??? Probably. __________________ Koni\|Swift\|Michelin\|Motordyne\|Berk\|RJM Performance\|Gates\|SPL\|Motul\|Technafit\|Ate Super Blue\|Hawk Tommy Kaira\|Momo\|Optima\|Hella\|Hotchkis\|Red Line\|ZSpeed\|Stillen\|B&M\|H&R

08-14-2010, 06:25 PM	#555 (permalink)
terbo Base Member Join Date: Nov 2009 Location: Louisville, KY Posts: 143 Drives: 09 Nissan 370Z PW M6 Rep Power: 16	UPS tried to drop mine off Friday but ko one was available to sign for it. Means I have to reschedule my dyno appointment for later in the week.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
DDMotorsports: Berk Technology Cat-Back Exhaust	M.Bonanni	Exhaust/Intake	47	12-14-2009 01:20 PM
Berk Technology Cat-Back Coming Soon!	M.Bonanni	Intake/Exhaust	468	08-14-2009 10:36 PM
Stillen Gen3 Intake, Berk Hi-flow cat, and Stillen cat-back exhaust	axio	Intake/Exhaust	82	07-31-2009 01:41 PM