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Old 04-14-2018, 01:30 PM   #1
LarzsWRX
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Member#: 461639
Join Date: Jan 2017
Default To J-Pipe or not to J-Pipe (with E-85 avail)

Been on the fence to spend the money on a J-Pipe when I have ethanol in the area. When I知 back from deployment i am planning at minimum adding TGV,EGR deletes, EBCS, and Cobbs Flex fuel unit, and getting the mid-pipe section of my axle back exhaust. Already running with the Grimmspeed TMIC and charge pipe and have an accessport.

So I know an ethanol blend does wonders for this motor and running an ethanol
Blend can push the limits as is of the stock rods and I think I値l be happy with the power outcome without the J-pipe.

I will have the cash either way but feel like I can forego the j-pipe for now use the money on something else. Just looking for yalls opinions! Thanks guys!
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Old 04-14-2018, 02:32 PM   #2
WRXTACY
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Chapter/Region: BAIC
Location: Alameda, CA
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2015 CWP WRX
Flex Fuel tune by Phatron

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you can achieve over 300+ without the jpipe easy but you might as well go all the way with just getting a one and make it easier for the tuner and engine to get to 360hp+ imo. can find used jpipes pretty easily now.
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Old 04-14-2018, 02:38 PM   #3
n2oiroc
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a j pipe makes the exhaust substantially louder, even catted. thats one major downside.
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Old 04-14-2018, 03:01 PM   #4
LarzsWRX
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Quote:
Originally Posted by WRXTACY View Post
you can achieve over 300+ without the jpipe easy but you might as well go all the way with just getting a one and make it easier for the tuner and engine to get to 360hp+ imo. can find used jpipes pretty easily now.
I知 really shooting for 320/320 at the moment on an ethanol blend. 91 is our only other option. I don稚 know if I feel comfortable taking her to 350+ till I do a built block tho. I致e also thought why not just do the pipe as well since I知 doing everything else short of a header and intake.
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Old 04-14-2018, 03:03 PM   #5
LarzsWRX
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Quote:
Originally Posted by n2oiroc View Post
a j pipe makes the exhaust substantially louder, even catted. thats one major downside.
That is true! I知 running the nameless 4 muffled axle back and love the sound of it, it痴 very bearable. It値l crackle and pop at times for me as well. As I致e become older, loud exhausts will get to me after a bit.
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Old 04-16-2018, 08:49 PM   #6
sth36
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Ice Silver

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Right now I'd say those stock cats are really a bottle neck and will be even more so on ethanol, but good power can be had without the J for sure. EricDet's car was a beast with just ethanol.

I wouldn't be concerned about reliability with those mods with or without the j pipe. A good tuner will keep you safe. I might be wrong but I don't think Ron has had a single car go boom and he tunes multiple on e per week--just check out his facebook. Not many tuners can say that.
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Old 04-16-2018, 11:31 PM   #7
redhunter
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18OB, 18XV, 17Impreza

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I did Flexfuel, EBCS, TGVD/EGRD, TMIC, and IWG header with a stock turbo back for about 20k miles. This is a great setup for someone that wants to go stealth and no noise makers; although the IWG header made the stock turboback sound a little more aggressive without any additional noise.

I'm currently in the process for getting an etune for a recently added turboback.

I didn't want to do everthing at once. I didn't want to open all my presents on the same Christmas.
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