Berk mid pipe and track exhaust installs, dynos, and video - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Matt Andrews · 11-03-2012, 06:59 PM

Hi guys.

I thought you might be interested in the results of some exhaust part testing. I did a full write up with 3 videos and install pictures on my blog, but for those that don't like the extra click, here are the cliff notes:

Stock the car made 169whp / 141tq with standard correction factors. Mid pipe without cat made about 6hp more. The straight exhaust made zero hp/tq improvements on my car, but shed 20 lbs, and actually made the car loud enough you could hear it.

The torque curve improved in the mid range. I'm pretty convinced these cars won't be woken up without a tune. I wonder if the stock ecu has a hp/tq calculator built in and it is controlling fuel and timing maps to keep it near a target.

Here is the final dyno pull:

Here is the rest of the story, photos, and video.

http://fecompetition.wordpress.com/2...-and-mid-pipe/

jeebus · 11-03-2012, 08:37 PM

nice! I found the Berk cat delete and dual exit muffler delete to be way too loud. However, the cat delete paired with their single exit muffler delete is perfectly fine. Loud yes, but I can live with it.

I could say that it felt like I picked up a few ponies from the cat delete. Nice to see the dyno backing that up.

mikey_BRZ · 11-03-2012, 10:36 PM

sounds good! did you have any type of aftermarket intake on?

Matt Andrews · 11-04-2012, 11:41 AM

stock intake. I haven't tested any myself, but I have heard most drop ins aren't making any power. Is there evidence to the contrary?

Opposed · 11-04-2012, 11:49 AM

Quote:

Originally Posted by Matt Andrews

stock intake. I haven't tested any myself, but I have heard most drop ins aren't making any power. Is there evidence to the contrary?

Nope, learn from me who spent $300 on something that doesn't make really that much more power than the stocker. The only thing is that it looks pretty.

2forme · 11-04-2012, 12:01 PM

Quote:

Originally Posted by Opposed

Nope, learn from me who spent $300 on something that doesn't make really that much more power than the stocker. The only thing is that it looks pretty.

Hey it makes like 3-4 whp. Lol more when get higher in power and actually need the air. I bet when I dyno the AVO kit that the intake will make considerable power

Opposed · 11-04-2012, 01:23 PM

Quote:

Originally Posted by 2forme

Hey it makes like 3-4 whp. Lol more when get higher in power and actually need the air. I bet when I dyno the AVO kit that the intake will make considerable power

Yea, that could be the case!

xwd · 11-04-2012, 02:02 PM

I think it's worth posting the dyno sheet here. Posting peak numbers isn't the whole story, there is a healthy torque increase across the board.

TwinRz · 11-04-2012, 08:04 PM

Thanks next time please just post the dynos. Other people and I really hate to watch videos to see results. Saves people a lot of time to not have to click on the link if they just want to see the results. Instead of having to scroll down.

Matt Andrews · 11-05-2012, 10:43 AM

If you see something that should be posted in the thread, feel free to include the link...

dale.m · 11-05-2012, 03:16 PM

Quote:

Originally Posted by Matt Andrews

If you see something that should be posted in the thread, feel free to include the link...

Is Berk making a mid pipe now? I knew they had the muffler delete and the catless test pipe, but are they still using the stock middle section or do they have a new part that I haven't seen yet?

gabeg86 · 11-05-2012, 04:53 PM

sounds awesome. thanks for the info. already ordered the muffler delete and probably going for the front pipe next so exactly what i needed!

Matt Andrews · 11-05-2012, 05:06 PM

Quote:

Originally Posted by dale.m

Is Berk making a mid pipe now? I knew they had the muffler delete and the catless test pipe, but are they still using the stock middle section or do they have a new part that I haven't seen yet?

there might be confusion on the right term for the. There is a picture int he blog of it. But its the pipe that has the secondary cat in it.

Captain Insano · 11-05-2012, 11:04 PM

I really like the weight reduction of this piece... but I am afraid it will be extremely loud when I get a header!

11-03-2012, 06:59 PM	#1
Matt Andrews Senior Member Join Date: May 2012 Drives: race cars Location: Newport Beach, CA Posts: 253 Thanks: 31 Thanked 150 Times in 68 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Berk mid pipe and track exhaust installs, dynos, and video Hi guys. I thought you might be interested in the results of some exhaust part testing. I did a full write up with 3 videos and install pictures on my blog, but for those that don't like the extra click, here are the cliff notes: Stock the car made 169whp / 141tq with standard correction factors. Mid pipe without cat made about 6hp more. The straight exhaust made zero hp/tq improvements on my car, but shed 20 lbs, and actually made the car loud enough you could hear it. The torque curve improved in the mid range. I'm pretty convinced these cars won't be woken up without a tune. I wonder if the stock ecu has a hp/tq calculator built in and it is controlling fuel and timing maps to keep it near a target. Here is the final dyno pull: Here is the rest of the story, photos, and video. http://fecompetition.wordpress.com/2...-and-mid-pipe/ __________________ 11/19/12 - Just back from Redline TimeAttack's demo event. Video and write up in link below. http://fecompetition.wordpress.com/ https://www.facebook.com/FECompetition

11-03-2012, 08:37 PM	#2
jeebus Senior Member Join Date: Jul 2012 Drives: 2015 Mustang GT (on order) Location: San Diego Posts: 904 Thanks: 114 Thanked 471 Times in 208 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	nice! I found the Berk cat delete and dual exit muffler delete to be way too loud. However, the cat delete paired with their single exit muffler delete is perfectly fine. Loud yes, but I can live with it. I could say that it felt like I picked up a few ponies from the cat delete. Nice to see the dyno backing that up. __________________

11-04-2012, 11:41 AM	#4
Matt Andrews Senior Member Join Date: May 2012 Drives: race cars Location: Newport Beach, CA Posts: 253 Thanks: 31 Thanked 150 Times in 68 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	stock intake. I haven't tested any myself, but I have heard most drop ins aren't making any power. Is there evidence to the contrary? __________________ 11/19/12 - Just back from Redline TimeAttack's demo event. Video and write up in link below. http://fecompetition.wordpress.com/ https://www.facebook.com/FECompetition

11-05-2012, 10:43 AM	#10
Matt Andrews Senior Member Join Date: May 2012 Drives: race cars Location: Newport Beach, CA Posts: 253 Thanks: 31 Thanked 150 Times in 68 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	If you see something that should be posted in the thread, feel free to include the link... __________________ 11/19/12 - Just back from Redline TimeAttack's demo event. Video and write up in link below. http://fecompetition.wordpress.com/ https://www.facebook.com/FECompetition

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11-03-2012, 10:36 PM	#3
mikey_BRZ Member Join Date: Aug 2012 Drives: 2013 Subaru BRZ Location: Houston, Texas Posts: 47 Thanks: 3 Thanked 7 Times in 6 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	sounds good! did you have any type of aftermarket intake on?

11-04-2012, 02:02 PM	#8
xwd Senior Member Join Date: Feb 2012 Drives: 2013 DGM Subaru BRZ (Subie #9) Location: ATL, US Posts: 2,667 Thanks: 123 Thanked 861 Times in 552 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	I think it's worth posting the dyno sheet here. Posting peak numbers isn't the whole story, there is a healthy torque increase across the board.

11-04-2012, 08:04 PM	#9
TwinRz Member Join Date: Nov 2012 Drives: BRZ Location: New York Posts: 53 Thanks: 2 Thanked 39 Times in 20 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Thanks next time please just post the dynos. Other people and I really hate to watch videos to see results. Saves people a lot of time to not have to click on the link if they just want to see the results. Instead of having to scroll down.

11-05-2012, 04:53 PM	#12
gabeg86 Senior Member Join Date: Jun 2012 Drives: 2013 Raven FR-S Location: Albuquerque, NM Posts: 324 Thanks: 139 Thanked 81 Times in 55 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	sounds awesome. thanks for the info. already ordered the muffler delete and probably going for the front pipe next so exactly what i needed!

11-05-2012, 11:04 PM	#14
Captain Insano Senior Member Join Date: Sep 2012 Drives: 2014 Jeep Wrangler RubiconX Location: Midwest, USA Posts: 1,282 Thanks: 110 Thanked 292 Times in 224 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	I really like the weight reduction of this piece... but I am afraid it will be extremely loud when I get a header!

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