Review: Berk Technology 3" Single Headerback Exhaust
05-18-2012, 04:32 PM
#71
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i was reading the berk exhaust review and the OP mentioned that to run a headerback its not safe to run lean (i suppose its not safe to run lean on any exhaust/engine combo) but this left a question in my mind, can i run this exhaust safely if its my only mod to the car until now, i dont have an ECU. will this lead to some potential damage in the future removing the stock exhaust/cat and replacing it with this exhaust? 
i know he mentioned he has a CR, mine is a MY04. any help would be greatly appreciated since i am about to take the plunge and order one of these bad boys.
i know he mentioned he has a CR, mine is a MY04. any help would be greatly appreciated since i am about to take the plunge and order one of these bad boys.
05-18-2012, 11:46 PM
#72
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Originally Posted by Angelfire' timestamp='1337281124' post='21707409
i was reading the berk exhaust review and the OP mentioned that to run a headerback its not safe to run lean (i suppose its not safe to run lean on any exhaust/engine combo) but this left a question in my mind, can i run this exhaust safely if its my only mod to the car until now, i dont have an ECU. will this lead to some potential damage in the future removing the stock exhaust/cat and replacing it with this exhaust? i know he mentioned he has a CR, mine is a MY04. any help would be greatly appreciated since i am about to take the plunge and order one of these bad boys.
i know he mentioned he has a CR, mine is a MY04. any help would be greatly appreciated since i am about to take the plunge and order one of these bad boys.also do you have any idea why honda decided to do this from 06 beyond? kinda sparked an interest in me to know why
05-20-2012, 01:21 PM
#73
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Originally Posted by takchi' timestamp='1337387526' post='21711332
[quote name='Angelfire' timestamp='1337281124' post='21707409']
i was reading the berk exhaust review and the OP mentioned that to run a headerback its not safe to run lean (i suppose its not safe to run lean on any exhaust/engine combo) but this left a question in my mind, can i run this exhaust safely if its my only mod to the car until now, i dont have an ECU. will this lead to some potential damage in the future removing the stock exhaust/cat and replacing it with this exhaust? i know he mentioned he has a CR, mine is a MY04. any help would be greatly appreciated since i am about to take the plunge and order one of these bad boys.
i was reading the berk exhaust review and the OP mentioned that to run a headerback its not safe to run lean (i suppose its not safe to run lean on any exhaust/engine combo) but this left a question in my mind, can i run this exhaust safely if its my only mod to the car until now, i dont have an ECU. will this lead to some potential damage in the future removing the stock exhaust/cat and replacing it with this exhaust?
i know he mentioned he has a CR, mine is a MY04. any help would be greatly appreciated since i am about to take the plunge and order one of these bad boys.also do you have any idea why honda decided to do this from 06 beyond? kinda sparked an interest in me to know why
[/quote]
06+ S2000s make a little more power than the other years. Big indicator is the larger throttle body. Maybe the tune stayed the same, but since the engine is getting more air, it's probably running slightly lean from the factory. Add in a testpipe, HFC, and/or exhaust and it's suddenly in the dangerously lean position. Other than that, if you're just doing highway pulls, you should be okay. Track guys bounce off the revlimiter or at WOT for 20-30 minutes straight so it's a little more dangerous if the engine runs lean.
05-20-2012, 01:57 PM
#74
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The s2000 like all modern Honda's has a knock sensor so running slightly lean is not going to be an issue - Use 91 shell with your exhaust and it will be fine without a retune. Also I am not sure which mods the other poster was refering to but when I had my skunk2 header, kn intake and 2.5 inch single before tune it ran rich before tuning not lean. Up to 11:1 in some places.
As far as the noise from the Berk - its a 3inch single with a typical packed muffler they get louder over time or during long hauls. I suggest adding a pre muffler or resonator and it will be much better. Berk will also add one to there exhausts at the time of purchase.
Vibrant makes them in t304 polished stainless for 70 bux online
http://www.ebay.com/itm/Vibrant-Perf...8161%26ps%3D54
As far as the noise from the Berk - its a 3inch single with a typical packed muffler they get louder over time or during long hauls. I suggest adding a pre muffler or resonator and it will be much better. Berk will also add one to there exhausts at the time of purchase.
Vibrant makes them in t304 polished stainless for 70 bux online
http://www.ebay.com/itm/Vibrant-Perf...8161%26ps%3D54
05-20-2012, 02:19 PM
#75
Originally Posted by s2000ellier' timestamp='1323136222' post='21213612
You made a good choice
05-20-2012, 03:09 PM
#76
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The s2000 like all modern Honda's has a knock sensor so running slightly lean is not going to be an issue - Use 91 shell with your exhaust and it will be fine without a retune. Also I am not sure which mods the other poster was refering to but when I had my skunk2 header, kn intake and 2.5 inch single before tune it ran rich before tuning not lean. Up to 11:1 in some places.
As far as the noise from the Berk - its a 3inch single with a typical packed muffler they get louder over time or during long hauls. I suggest adding a pre muffler or resonator and it will be much better. Berk will also add one to there exhausts at the time of purchase.
Vibrant makes them in t304 polished stainless for 70 bux online
http://www.ebay.com/itm/Vibrant-Perf...8161%26ps%3D54
As far as the noise from the Berk - its a 3inch single with a typical packed muffler they get louder over time or during long hauls. I suggest adding a pre muffler or resonator and it will be much better. Berk will also add one to there exhausts at the time of purchase.
Vibrant makes them in t304 polished stainless for 70 bux online
http://www.ebay.com/itm/Vibrant-Perf...8161%26ps%3D54
Knocking isn't going to be an issue with the exception of your engine pulling timing pretty often. AP1s generally run rich. I'm not familiar with the 04-05 AP2s, but I don't think they'll have much of an issue. My AFR hit 14.2:1 at one point and held a consistent 13.5:1 throughout most of the RPM range before hitting 13:1 at redline on stock exhaust.
05-20-2012, 04:43 PM
#77
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Read the first post and love the review. I may be leaning toward purchasing this exhaust. Since I have a 07 if I go I/h/e I will be running dangerously lean? So I would have to get a reflash when I do all this?
05-20-2012, 04:58 PM
#78
The s2000 like all modern Honda's has a knock sensor so running slightly lean is not going to be an issue - Use 91 shell with your exhaust and it will be fine without a retune. Also I am not sure which mods the other poster was refering to but when I had my skunk2 header, kn intake and 2.5 inch single before tune it ran rich before tuning not lean. Up to 11:1 in some places.
As far as the noise from the Berk - its a 3inch single with a typical packed muffler they get louder over time or during long hauls. I suggest adding a pre muffler or resonator and it will be much better. Berk will also add one to there exhausts at the time of purchase.
Vibrant makes them in t304 polished stainless for 70 bux online
http://www.ebay.com/itm/Vibrant-Perf...8161%26ps%3D54
As far as the noise from the Berk - its a 3inch single with a typical packed muffler they get louder over time or during long hauls. I suggest adding a pre muffler or resonator and it will be much better. Berk will also add one to there exhausts at the time of purchase.
Vibrant makes them in t304 polished stainless for 70 bux online
http://www.ebay.com/itm/Vibrant-Perf...8161%26ps%3D54
This one won't get louder because there is no packing to burn out
http://www.moroso.com/catalog/catego...?catcode=35054
It's a race muffler so it only takes about 4 to 6 db's off of the loudness of the exhaust but that was good enough for my other car to make it livable on the road.
ROD
05-20-2012, 08:03 PM
#79
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I recommend Flashpro to get everything dialed in correctly. I don't know how good the flash is, but since you're already spending the money, you might as well get it done right. You want to have a AFR around 12.7-13:1. Other than that, I'm not much of a guru for ECU tuning.
05-20-2012, 08:36 PM
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*Dual layered muffler packing to eliminate unwanted resonance Stainless steel wool & high density glass packing for maximum sound control *Straight through perforated muffler core *
As far as moroso goes I used to sell sebring mufflers 13 years ago and all of the tuners would tell me that the spin flow was a gimmick and didn't work (sounded cool though) they never caught on so I would assume its a bad idea.
It's fairly easy to replace mufflers and responators over time so I would just consider it a maintenance issue - I've also used the coast fab/burns mufflers that are repackable and they were shxt IMO