Jump to content
LegacyGT.com

2.5i Exhaust Question


Recommended Posts

  • Replies 159
  • Created
  • Last Reply

 

 

I have it LOL :lol: but if the one you order doesnt have bungs im sure you can fork over the $2/per to get two making it a whopping $39.99 typically the real OBDII CARB cats have both bungs no CEL's when it was on the car

Link to comment
Share on other sites

It'll make it a lot deeper but not louder I believe... And pawlawl, you know you wanna get the headers and not just a resonator... Haha I don't help ANYONE'S cause.

 

Ohh i already have the headers, they are collecting dust in my closet :lol: I need a cat and a resonator, plus the custom pipes to connect them, and the O2 sensor extension, and I'll be set :)

Link to comment
Share on other sites

Alright guys, just wanted to confirm what I really need to make this happen since there's so many different ways that shtbxr22 and GEE-OTTO have done it. According to info on GEE-OTTO's other thread and this thread, I can do the following:

 

Impreza 2.5RS header which bolts to...

2.25" universal catalytic converter with 2 bungs (as linked on the 2nd page of this thread) OR OEM catalytic converter from Impreza RS (as mentioned in GEE-OTTO's other thread) which leads to...

24" Magnaflow resonator...then connects back to OEM Y-pipe and axle-back?

 

Am I missing anything or have the wrong idea? And is there anything wrong with using the stock resonator?

 

Thanks guys!!

Link to comment
Share on other sites

what is that lol?

had to google that ish, and no i don't lol. I had the nickname paul wall longg before that wannabe came around :lol:

 

right now im at good ol tidewater community college in va

 

Haha... Wannabe indeed, I had to ask though!

 

Cool cool.

Link to comment
Share on other sites

Alright guys, just wanted to confirm what I really need to make this happen since there's so many different ways that shtbxr22 and GEE-OTTO have done it. According to info on GEE-OTTO's other thread and this thread, I can do the following:

 

Impreza 2.5RS header which bolts to...

2.25" universal catalytic converter with 2 bungs (as linked on the 2nd page of this thread) OR OEM catalytic converter from Impreza RS (as mentioned in GEE-OTTO's other thread) which leads to...

24" Magnaflow resonator...then connects back to OEM Y-pipe and axle-back?

 

Am I missing anything or have the wrong idea? And is there anything wrong with using the stock resonator?

 

Thanks guys!!

 

 

Here is what youll need the simple setup as i call it :

 

-2.5 RS header

 

-A high flow cat with bungs installed or you can have them put in for $2

 

-two mufflers of your choice cheap, mid range, high end you choose they really dont impact sound as much as the resonator and cat do.

 

-You can use any resonator you want i.e. glass pack, cherry bomb, or another straight thru muffler

 

-O2 options extend them yourself (splice in 16ga wire DONT USE SOLID CORE wire) or buy the Subaru O2 extensions I think $34 for a 24" but they come in up to 36" lengths

 

Take all that to a exhaust shop and have them put it all together for you.

 

When running that setup I put my headers on before I took it to the shop and extended my O2 wires as well.

 

OR

 

You can buy a catalytic converter and the headers only and buy the CX Lightening LGT catback for $320 SHIPPED w/ a resonator built in. Now i know your like WTF but consider this: You can put the catback on in minutes put your headers on in minutes the only thing you will need the shop to do is fab a short pipe using your cat to connect the two pieces you can then extend your own O2 wires once you get home or have them do it. This is a much more modular approach and you dont have to buy separate mufflers, resonator, and pipes and flanges.

 

 

I have sold my setups to RS25.com members and actually will be exploring this as the final setup that i will run full time. Now you can obviously get any catback you want made for a LGT but keep that in mind:);):rolleyes::wub::eek::confused::cool::p:)

Link to comment
Share on other sites

Alright guys, just wanted to confirm what I really need to make this happen since there's so many different ways that shtbxr22 and GEE-OTTO have done it. According to info on GEE-OTTO's other thread and this thread, I can do the following:

 

Impreza 2.5RS header which bolts to...

2.25" universal catalytic converter with 2 bungs (as linked on the 2nd page of this thread) OR OEM catalytic converter from Impreza RS (as mentioned in GEE-OTTO's other thread) which leads to...

24" Magnaflow resonator...then connects back to OEM Y-pipe and axle-back?

 

Am I missing anything or have the wrong idea? And is there anything wrong with using the stock resonator?

 

Thanks guys!!

 

Stock resonator works it Effs the sound slightly look at Shbxr22 first videos he has the stock blimp on

Link to comment
Share on other sites

Ok so I got a reply saying that cat doesn't have the O2 sensor bungs, GeeOtto, what do you mean have them installed for two bucks? At a shop?

 

O2 bungs are like $1 a piece. I figured out the error in my reporting to you. When I got my cat form the exhaust shop they had O2 Bungs x2 ---$2.00 I think what happend was they had the Thunderbolt and put the bungs in it at the shop I thought they came with bungs. Well anyway the cat worked flawless and the bungs are still a minor issue overall.

 

I should say from now on if you dont have a cat with bungs ask to have them installed they are simple threaded metal washer that gets welded in the side of the pipe before and after your cat.

Link to comment
Share on other sites

Thanks GEE-OTTO!

 

I was looking at a Magnaflow cat that has 2 bungs built-in with a 2.25inch inlet/outlet. There's 2 different models for it though. One has a 2inch core and the other has a 2.5inch core. Do you know if the size of the core makes a difference in sound, volume, etc?

 

Also, why does the OBX design look different than the ebay/Borla one? :confused:

 

OBX (courtesy of Subie2.5i)

 

http://www.legacygt.com/forums/attachment.php?attachmentid=72899&d=1251823394

 

eBay/Borla

 

http://left.uits.iupui.edu/amk/HD-018/HD-018-A.jpg

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.




×
×
  • Create New...

Important Information

Terms of Use