CTI SS Header and cat back installed full 3"
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Joined: 07-06-04
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From: Spaceball 1 or better known as CT
Originally Posted by R33P3R007
Woot, mine was noticeable. i put down 205 on a mustang dyno, then 235 on a dynojet after with just the CTI header. I had to extend the o2 cable on mine, it looks like yours fits. it took me a lot longer becuae i had to do it on the ground under my car in the drivway without air tools. but i think it is a noticeable gain and a bit of sound change.
If I drove it a bit before I'm sure it woulve done much better, and problem with the o2 was the redlines have a longer cable, future CSS header/downpipes will have the fixes learned from mine

Definitely much better after driving it home and much better sound

Originally Posted by Tru Cobalt SS
sorry but I am not familiar with CTI. Is that short for something cause I cant find it.
Custom Tubes Inc. To the original poster: nice setup!! I'm looking for a long-tube header, 3" full exhaust system. I wanted to wait and see what people thought about this system.
Originally Posted by Bad06SS
Custom Tubes Inc. To the original poster: nice setup!! I'm looking for a long-tube header, 3" full exhaust system. I wanted to wait and see what people thought about this system.
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Joined: 07-06-04
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From: Spaceball 1 or better known as CT
Originally Posted by SS_SC_Cobalt
SS_SC_Cobalt............Do you know what the "I-piping" looks like in order to remove and reinstall the cat?? If you look at the header on the website, it goes into detail of what I'm talking about. Just wondering if you have any pics of this piping or if you know how this works.
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Joined: 07-06-04
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From: Spaceball 1 or better known as CT
Originally Posted by Saki XL
SS_SC_Cobalt............Do you know what the "I-piping" looks like in order to remove and reinstall the cat?? If you look at the header on the website, it goes into detail of what I'm talking about. Just wondering if you have any pics of this piping or if you know how this works.

Originally Posted by SS_SC_Cobalt
CTI stepped design header
includes cat and downpipe
cat back is optional
includes cat and downpipe
cat back is optional
Originally Posted by SS_SC_Cobalt
look at the first post, vid with sound clip.
When I had my AAM 3" catback, even that flange bolted to the stock downpipe.
So shouldn't the CTI header/downpipe, bolt right up to my 2.5" catback? Not the best for flow, but they should bolt together.
I'd rather get it without the 2.5" taper at the end, in case I go with a 3" catback.
So shouldn't the CTI header/downpipe, bolt right up to my 2.5" catback? Not the best for flow, but they should bolt together.
I'd rather get it without the 2.5" taper at the end, in case I go with a 3" catback.
Thread Starter
Senior Member
Joined: 07-06-04
Posts: 2,082
Likes: 2
From: Spaceball 1 or better known as CT
Originally Posted by turboeco
When I had my AAM 3" catback, even that flange bolted to the stock downpipe.
So shouldn't the CTI header/downpipe, bolt right up to my 2.5" catback? Not the best for flow, but they should bolt together.
I'd rather get it without the 2.5" taper at the end, in case I go with a 3" catback.
So shouldn't the CTI header/downpipe, bolt right up to my 2.5" catback? Not the best for flow, but they should bolt together.
I'd rather get it without the 2.5" taper at the end, in case I go with a 3" catback.
Originally Posted by SS_SC_Cobalt
if you look at it the 3" doesnt mate to the 2.5 properly, witht he AAM you have to use multiple gaskets not to get a leak, basically it is better to get a 3-2.5 if you have that exhaust....
I know the 2.5" vs. 3" is debatable, what do you guys think? I just hate to go 3" collector and downpipe, then bottleneck it to 2.5" at the catback. Seems like it'd be better to keep it a full 3" thru.


