My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (PICS, 56K ok)
05-03-2003, 01:57 AM
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My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (PICS, 56K ok)
Hey guys, I need some help.
I recently got a muffler shop to make me a 2.5" Downpipe for my Greddy Turbo kit. As you can see from the pictures its the same flanges that will bolt right up to the existing system with a wideband bung for tuning and a bung for the 02 sensor.
I was thinking that I could use the spring bolts that came stock with my car, but the bolts are too small and won't line up. Next thought was adding flex pipe to the Stainless steel in order to compensate for the engine torquing under load etc.
I want some thoughts, I was figuring to cut the downpipe and add an 8" section of flex pipe. Look at the picture below and tell me what you think. This downpipe is bolting up to a 2.5" High Flow cat, 2.5" SS Piping and 2.5" ES OVal style muffler from MKTellers Group buy.
Thanks - Fred
I recently got a muffler shop to make me a 2.5" Downpipe for my Greddy Turbo kit. As you can see from the pictures its the same flanges that will bolt right up to the existing system with a wideband bung for tuning and a bung for the 02 sensor.
I was thinking that I could use the spring bolts that came stock with my car, but the bolts are too small and won't line up. Next thought was adding flex pipe to the Stainless steel in order to compensate for the engine torquing under load etc.
I want some thoughts, I was figuring to cut the downpipe and add an 8" section of flex pipe. Look at the picture below and tell me what you think. This downpipe is bolting up to a 2.5" High Flow cat, 2.5" SS Piping and 2.5" ES OVal style muffler from MKTellers Group buy.
Thanks - Fred
05-03-2003, 02:44 AM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (Arturbo)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Arturbo »</TD></TR><TR><TD CLASS="quote">Add a flex pipe after the flange and replace your cat with the flex pipe.
arr</TD></TR></TABLE>
no can do cutie, this isn't TX .. NY has emmissions testing
arr</TD></TR></TABLE>
no can do cutie, this isn't TX .. NY has emmissions testing
05-03-2003, 03:46 AM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (Arturbo)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Arturbo »</TD></TR><TR><TD CLASS="quote">so do we, ***.</TD></TR></TABLE>
yeah well you'll have to think of something different, what do u have to say about my design, come on!
yeah well you'll have to think of something different, what do u have to say about my design, come on!
05-03-2003, 05:05 AM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (FredoSP)
I would add a flex pipe. They're only l ike $35.
What are you using to plug the extra O2 bung? I was too lazy to go look for a suitable plug, so I just stuck an old O2 I had lying around in there
What are you using to plug the extra O2 bung? I was too lazy to go look for a suitable plug, so I just stuck an old O2 I had lying around in there
05-03-2003, 05:09 AM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (inspyral)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by inspyral »</TD></TR><TR><TD CLASS="quote">I would add a flex pipe. They're only l ike $35.
What are you using to plug the extra O2 bung? I was too lazy to go look for a suitable plug, so I just stuck an old O2 I had lying around in there </TD></TR></TABLE>
Fred's a ***... He's still thinking about the flex pipe. 
Also, for that extra o2 bung...it's a plug that I paid $3 for. 
What are you using to plug the extra O2 bung? I was too lazy to go look for a suitable plug, so I just stuck an old O2 I had lying around in there
</TD></TR></TABLE>Fred's a ***...
He's still thinking about the flex pipe. Also, for that extra o2 bung...it's a plug that I paid $3 for.
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05-03-2003, 05:25 AM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (FBP Si 2000)
Dang, $3 for a plug? Where can I find it? Maybe I'll just take my extra bung down to Home Depot and see if anything matches up.
05-03-2003, 05:28 AM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (inspyral)
Yeah...pricey isn't it. I got it at a local muffler shop. You can try Home Depot...I tried, but I couldn't find anything to match up. Maybe you will have better luck though. Keep us posted if you do, it could save us a few bucks. 
05-03-2003, 06:39 AM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (FredoSP)
The measurements on the o2 bung are 'M18x1.5"... 18mm, 1.5 thread pitch.
Homedepot doesnt have it, it's an odd size.
Homedepot doesnt have it, it's an odd size.
05-03-2003, 06:49 AM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (FBP Si 2000)
Jackson, stop by the muffler Shop in Ghetto Santa Ana and pick one up for this guy
bump for ideas to my dilemma
bump for ideas to my dilemma
05-03-2003, 07:38 AM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (FredoSP)
I put mine in between the cat and DP. Of course, I am taking my cat out soon.
05-03-2003, 07:40 AM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (FredoSP)
no suggestions here but nice dp. where did u get that done man? can they do our exhausts for a good price? i'll be back on the 8th man, i'm dyin to get this thing on. its sitting in my garage rite now.
05-03-2003, 07:55 AM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (Arturbo)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Arturbo »</TD></TR><TR><TD CLASS="quote">Add a flex pipe after the flange and replace your cat with the flex pipe.
arr</TD></TR></TABLE>
This is what i say and what i am doing. When emissions comes around, it is not hard to replace with the stock cat and stock downpipe.
arr</TD></TR></TABLE>
This is what i say and what i am doing. When emissions comes around, it is not hard to replace with the stock cat and stock downpipe.
05-03-2003, 07:56 AM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (Pengo)
I think the simplest way would be to add it where you have it layed out. I think a lil' more complicated, but imporved way, may be to add flanges to the front and back of the flex section and replace your cat. When emmisions rolls around just swap em. Also, you must have the flex, but I think you know that. My brothers exhaust snapped because the greddy doesn't have a flex section.
05-03-2003, 08:19 AM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (JalopySiR)
If you are worried about emission, do like Cheezefrog has. Bolt up some baseline honda stock OEM exhaust up to the car with the stock cat, resonator, and all. Hell, put another cat or resonator on the piping if that matters. Then, put a electronic cutout behind the DP. Open exhaust for performance and a closed one for emissions. 
05-03-2003, 09:34 AM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (Pengo)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Pengo »</TD></TR><TR><TD CLASS="quote">no suggestions here but nice dp. where did u get that done man? can they do our exhausts for a good price? i'll be back on the 8th man, i'm dyin to get this thing on. its sitting in my garage rite now.</TD></TR></TABLE>
He got that made in Cali.
He got that made in Cali.
05-03-2003, 11:02 AM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (JalopySiR)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JalopySiR »</TD></TR><TR><TD CLASS="quote">I think the simplest way would be to add it where you have it layed out. I think a lil' more complicated, but imporved way, may be to add flanges to the front and back of the flex section and replace your cat. When emmisions rolls around just swap em. Also, you must have the flex, but I think you know that. My brothers exhaust snapped because the greddy doesn't have a flex section.</TD></TR></TABLE>
mine snapped just the other day when I noticed a deeper rumble coming from my car. Right on the weld ...
mine snapped just the other day when I noticed a deeper rumble coming from my car. Right on the weld ...
05-03-2003, 12:07 PM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (FredoSP)
Yeah the exhaust snapped on our greddy'd Civic as well :/
BTW i paid $85 for my 2.5" flex pipe, where you guys getting em for $35?
BTW i paid $85 for my 2.5" flex pipe, where you guys getting em for $35?
05-03-2003, 01:03 PM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (LegacyTuning)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LegacyTuning »</TD></TR><TR><TD CLASS="quote">Yeah the exhaust snapped on our greddy'd Civic as well :/
BTW i paid $85 for my 2.5" flex pipe, where you guys getting em for $35?</TD></TR></TABLE>
Price depends a lot on length, not just diameter. Maybe the $35 price is for a real short one. A while ago I bought a medium length SS 2.25" one from jcwhitney for around $35 though. Not sure if they are higher nowadays, but you might want to check there.
BTW i paid $85 for my 2.5" flex pipe, where you guys getting em for $35?</TD></TR></TABLE>
Price depends a lot on length, not just diameter. Maybe the $35 price is for a real short one. A while ago I bought a medium length SS 2.25" one from jcwhitney for around $35 though. Not sure if they are higher nowadays, but you might want to check there.
05-03-2003, 01:27 PM
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Re: My Custom 2.5" Greddy B Series Downpipe .. Should I add Flex Pipe (LegacyTuning)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LegacyTuning »</TD></TR><TR><TD CLASS="quote">Yeah the exhaust snapped on our greddy'd Civic as well :/
BTW i paid $85 for my 2.5" flex pipe, where you guys getting em for $35?</TD></TR></TABLE>
http://www.atpturbo.com
BTW i paid $85 for my 2.5" flex pipe, where you guys getting em for $35?</TD></TR></TABLE>
http://www.atpturbo.com