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Old 09-21-2012, 11:09 AM   #251
bbron12
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yea, a full tbe is what you want
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Old 09-21-2012, 11:11 AM   #252
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Quote:
Originally Posted by scoobyd00d View Post
Yea I have a new catback so I'm going to install it today. Is it just me, or is the flange between the cbe and dp a pita to disconnect? I've been fighting it for a while now. Used penetrating oil too.
Just break the bolts and replace them... not worth fighting with them.
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Old 09-21-2012, 11:13 AM   #253
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Quote:
Originally Posted by P-Train

Just break the bolts and replace them... not worth fighting with them.
Yea as soon as I posted that I tried again and snapped one clean in half. But I'm not sure when I'll be able to get my catback so I don't wanna snap the other one and then it be wayyyy too loud to drive every day.
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Old 09-21-2012, 11:15 AM   #254
bbron12
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just get new bolts. any hardware store has them, like $1.00 and youll be all set
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Old 10-04-2012, 01:55 PM   #255
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Hey guys, I'm new to all the car stuff but I am willing to take a go on it. I got a JNA catback exhaust, cobb AP v2, and now trying to find a nice DP with good performance but also financially acceptable.

Now my question might be really stupid but again I am a noob.

What is the diff between a catless DP and one with? Am I supposed to get a catless? And I'm afraid of this CEL error now.

If I installed lets say a invidia catted DP, Cobb AP, and JnA catback exhaust. Will I have a CeL error?

Thanks for hearing me out :/

-noobie
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Old 10-04-2012, 03:23 PM   #256
the suicidal eggroll
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You're "supposed" to get whatever you want. Catted will be slightly more restrictive and make a little less power, but it's also about 90% less illegal and has less risk of boost creep.

The stage 2 tune you load using the AP when you install the DP will eliminate the CEL regardless of whether you go catted or catless.
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Old 10-04-2012, 05:14 PM   #257
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Quote:
Originally Posted by the suicidal eggroll
You're "supposed" to get whatever you want. Catted will be slightly more restrictive and make a little less power, but it's also about 90% less illegal and has less risk of boost creep.

The stage 2 tune you load using the AP when you install the DP will eliminate the CEL regardless of whether you go catted or catless.
Thanks!
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Old 11-07-2012, 04:08 PM   #258
dritgert
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Great write up
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Old 12-06-2012, 07:43 PM   #259
ANR62NV
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If I have a custom tune on my catless downpipe , and I want to go catted (aftermarket) , would I need a re-tune?
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Old 12-06-2012, 07:54 PM   #260
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Quote:
Originally Posted by ANR62NV View Post
If I have a custom tune on my catless downpipe , and I want to go catted (aftermarket) , would I need a re-tune?
I believe so because flow changes
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Old 12-06-2012, 08:30 PM   #261
HinshawWRX
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Quote:
Originally Posted by ANR62NV View Post
If I have a custom tune on my catless downpipe , and I want to go catted (aftermarket) , would I need a re-tune?
No

Quote:
Originally Posted by SubeizRippin View Post
I believe so because flow changes
Not enough to truly benefit from a retune from a tuner. And OTS maps cover catted and catless.
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Old 12-06-2012, 10:25 PM   #262
DelSol_Racer
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great write up, just wanted to throw this out there, my buddy gave me a free bell mouth DP and a cat back exhaust (generic)
any one running one of these generic DP?
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Old 12-06-2012, 10:35 PM   #263
RHD 93 STi
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Default generic pipe

i used to have the ebay knock off tbe. build quality is ok but was very loud.
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Old 12-07-2012, 06:49 AM   #264
HinshawWRX
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Quote:
Originally Posted by DelSol_Racer View Post
great write up, just wanted to throw this out there, my buddy gave me a free bell mouth DP and a cat back exhaust (generic)
any one running one of these generic DP?
There are about 5,000 "generic" DP's floating around. Depending on which one you have, it could be great. Overall it's just a pipe with welds, so as long as your welds are good, and no holes where a hole shouldn't be, you'll be just fine.
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Old 12-14-2012, 04:23 PM   #265
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Quote:
Originally Posted by Anubis450 View Post
Always get a tune after a downpipe, or you'll get terrible boost spikes :/
I get mixed feedback on this. The FAQ and other posts say no EM needed, my shop and other posts say to always get EM with a DP (cat or no cat) even on a 2.0.

I have catless UP, invidia CBE, no tune. Just trying to avoid buying an AP as I'm not seeking massive hp
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Old 12-14-2012, 04:53 PM   #266
Mr Wrex
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Quote:
Originally Posted by blaze wrx View Post
I get mixed feedback on this. The FAQ and other posts say no EM needed, my shop and other posts say to always get EM with a DP (cat or no cat) even on a 2.0.

I have catless UP, invidia CBE, no tune. Just trying to avoid buying an AP as I'm not seeking massive hp
You have a '02. It's not needed, but it is recommended. I would definitely just do the tune.
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Old 12-14-2012, 05:12 PM   #267
the suicidal eggroll
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Quote:
Originally Posted by blaze wrx View Post
I get mixed feedback on this. The FAQ and other posts say no EM needed, my shop and other posts say to always get EM with a DP (cat or no cat) even on a 2.0.

I have catless UP, invidia CBE, no tune. Just trying to avoid buying an AP as I'm not seeking massive hp
You don't need a tune, but without one you will gain almost nothing by your mods. So while a tune isn't needed for a DP on an 02, the DP is just a waste of money without one.
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Old 01-07-2013, 09:17 PM   #268
T_woot
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Default Downpipe to Tailpipe Fitment issue

Hey guys, was looking for some help on this one... Installed my Invidia Catted DP today. Upon bolting it up to the tailpipe and torquing down, there was a gap left between the tailpipe and the downpipe. I added some thicker gaskets but I am still getting an exhaust leak. Any suggestions on an affordable fix? Any repercussions driving the car with the exhaust leak? Thanks!

Here is a link to a picture

http://www.flickr.com/photos/t_woot/...in/photostream
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Old 02-18-2013, 10:08 PM   #269
SeeJ2005
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opened my eyes to a lot of very useful information. Thanks!
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Old 02-18-2013, 10:50 PM   #270
gambera
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Quote:
Originally Posted by T_woot View Post
Hey guys, was looking for some help on this one... Installed my Invidia Catted DP today. Upon bolting it up to the tailpipe and torquing down, there was a gap left between the tailpipe and the downpipe. I added some thicker gaskets but I am still getting an exhaust leak. Any suggestions on an affordable fix? Any repercussions driving the car with the exhaust leak? Thanks!

Here is a link to a picture

http://www.flickr.com/photos/t_woot/...in/photostream

Judging by the picture , you got stock exhaust

see if this thread helps, post #7 and 18

http://forums.nasioc.com/forums/show....php?t=2232026
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Old 02-19-2013, 12:07 AM   #271
Tylahh
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Thanks for this info.
Appreciate the good write up
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Old 03-13-2013, 07:59 PM   #272
Daddy_Digital
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Sorry for the ignorant question, but I must ask the following. Would the down pipe from a 08 WRX fit on my 02 WRX? I read somewhere that they are interchangeable. But I want this to be confirmed here. Thanks.
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Old 03-13-2013, 08:08 PM   #273
the suicidal eggroll
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Pretty sure they're different lengths.
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Old 03-14-2013, 06:54 PM   #274
roarksbane
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I finally have an exhaust leak after the turbo, so I'm going stage 2!

My problem: I'm environmentally conscious but am addicted to upgrades.

My question: which downpipe has the largest, cleanest, greenest cat?

My babble: I don't plan on going over 300 hp, so feel I can get away with a more restrictive cat. I would even be interested in a dual high flow setup if that's available, but any search I do comes up with very old results. Any info is appreciated, I've searched quite a bit and it's difficult to find the cat's ratings. I've read the smog thread on NASIOC, and the Maddad V2 gets the lowest smog numbers compared to other aftermarket setups that were posted, and I've already decided on his Whisper catback, and was about to get the V2 (300 cell cat btw), but those darn wastegate gasses won't be catted! How much exhaust is bypassed under boost anyway? If it's nominal, then maybe I will just go for the V2. Please, someone tell me it's nominal. I figured I'd ask these questions here before I started calling the manufacturer of every downpipe out there.
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Old 03-14-2013, 09:20 PM   #275
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ZERO people know your answer. ZERO.
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