Well I just got done installing my new LSJ DP on my 2.2. Currently I have the racing solution shorty 4-1 header and a Corsa sport cat-back. The LSJ DP was a really good way to finish off the exhaust! I felt a difference as soon as I pulled out of my driveway. And the car really pulls quite a bit harder from 5000-6500 RPM.

Check out the difference..
http://i107.photobucket.com/albums/m308/ibdaman_2006/LSJDP003.jpg
http://i107.photobucket.com/albums/m308/ibdaman_2006/LSJDP004.jpg
http://i107.photobucket.com/albums/m308/ibdaman_2006/LSJDP005.jpg
http://i107.photobucket.com/albums/m308/ibdaman_2006/LSJDP006.jpg
http://i107.photobucket.com/albums/m308/ibdaman_2006/LSJDP007.jpg

This is a very cheep solution for any 2.2/2.4 owner that needs a downpipe.

Keep in mind that this is only a direct bolt on for G5/Cobalts with MANUAL transmissions. the motor sits a bit different with the automatic transmission.

^wow very nice. didnt think the 2.2 DP was that crappy lol

I got my LSJ DP from another member for $50. and i have an auto too and it makes the dp sit a slight bit lower and my dp will scrape on big speed bumps. But every worth getting tho.

i just put one on my car for my sc build hahaha, had to keep costs down

^wow very nice. didnt think the 2.2 DP was that crappy lol
Yep its just a tiny little thing (thats what she said anyways.. ;) )
I got my LSJ DP from another member for $50. and i have an auto too and it makes the dp sit a slight bit lower and my dp will scrape on big speed bumps. But every worth getting tho.
So did it directly bolt up? I heard its about 2-3 inches too short for the auto's

yeah, i thought it made a good bit of differince, def. worth the 50 bucks

exactly what i got and yeah i was ashamed at the size of the stock 2.2 DP. looks like a damn pea shooter. haha. looks good man.

yeah, i thought it made a good bit of differince, def. worth the 50 bucks
Yeah for sure! I got mine for 60 shipped from littlegoose. (good seller BTW:twothumbs)
exactly what i got and yeah i was ashamed at the size of the stock 2.2 DP. looks like a damn pea shooter. haha. looks good man.

No doubt! I didn't think it was that small until i held it up to the LSJ DP lol :thumbsdow

so you got a full exhaust obz? header, lsj dp, and a catback? how much diff did you notice with the full system?

Yep I have the racing solution 4-1 shorty header for the 2.2 - LSJ DP - Corsa sport cat-back.
I have noticed a big improvement from stock! the biggest jump was from the header! Its amazing what it did for my top end..

u got an exhaust clip?

I'll get one. All I have is a shitty camera though. So it won't be the greatest quality. and I'm sure it won't so it any justice.. but it sounds mean!

sounds like next pay check im getting the header. and then the mandrel bent magnaflow catback.

i did header, then dp then exhaust, i think the best gain was from the dp. the header made a good differance, but i think the dp made the biggest gain. hohonestly the cat back just made it louder, i really didn't notice much of a gain, then againe i swapped cat backs in the middle of a 2 week rain period so it ook awhile before i could beat on it after so i don.t have a sameday comperison.

i did header, then dp then exhaust, i think the best gain was from the dp. the header made a good differance, but i think the dp made the biggest gain. hohonestly the cat back just made it louder, i really didn't notice much of a gain, then againe i swapped cat backs in the middle of a 2 week rain period so it ook awhile before i could beat on it after so i don.t have a sameday comperison.

Well my ecu is still learning the new flow so I'm sure it will get a little better. Once I get the 2.4 intake manifold I'll get a tune. Then I should see a good gain!

You're the only person I've heard mention the issue with the auto and LSJ DP...if there's any truth to it not fitting, then I'll have to look into the ZZP mid lenght setup again, but can anyone else say for sure that it will fit with an auto?

I would assume so, but please tell me it will.

I don't want the Cobalt to wind like my old Saturn SC1 where they made a CAI, but the catch was it only worked with manual trans, auto were stuck with SRI unless they custom made one because of the tranny filter.

i need to get a resonator welded in before i put thatDP back on my car. sooooo loud....

That 2.2 DP is much more restrictive than I thought!

The LSJ DP is definitely on my to do list.

The LSJ DP bolted right on to my auto 2.2, no issues.

Here is another unfair comparison.

Stock 2.2 dp VS ZZP 3" cat'd dp with 2.5" flange.

http://i135.photobucket.com/albums/q134/ericbristol/redline/exhaust/DSC03731.jpg

http://i135.photobucket.com/albums/q134/ericbristol/redline/exhaust/DSC03732.jpg

http://i135.photobucket.com/albums/q134/ericbristol/redline/exhaust/DSC03734.jpg

The LSJ DP bolted right on to my auto 2.2, no issues.

No issues at all? I have found on both 2.4s and 2.2s with autos the LSJ didn't just bolt in...what cat-back do you have?

the LSJDP is shorter and the cat sits on the sway bar without some adjustments.

Can you post some pics of your install?

Check out my thread, and I have run into this on an another 2.2 auto equipped LS:

http://www.cobaltss.net/forums/showthread.php?t=150651&highlight=LSJ

i thought that the lsj dp doesnt bolt up to the autos
i thought its too short cause the engine sits further up front to the autos

No issues at all? I have found on both 2.4s and 2.2s with autos the LSJ didn't just bolt in...what cat-back do you have?

the LSJDP is shorter and the cat sits on the sway bar without some adjustments.

Can you post some pics of your install?

Check out my thread, and I have run into this on an another 2.2 auto equipped LS:

http://www.cobaltss.net/forums/showthread.php?t=150651&highlight=LSJ

I have a 2006 2.2 auto (with SAI). I had the LSJ cat back then I installed the LSJ DP over a year ago. On my car the LSJ DP is a tight fit but its in there without any rubbing. I will soon (within the next few weeks) be installing an LSJ exhaust manifold. When I get under there to do the manifold I'll definetly get some pics for you.

funny how much of a difference .25" makes haha.

so the lsj dp does bolt up to an auto 2.2?

so the lsj dp does bolt up to an auto 2.2?
Yes, it will rub/vibrate on the sway bar in reverse.

i have the lsj dp on my 07 auto w/ sai with a magna flow cat back and v2 header it was a little short but it just squizzes together its a tight fit but it doesnt rub or rattle

so the lsj dp does bolt up to an auto 2.2?

This is definitely an area 2.2 owners need to be aware of. The SAI equipped 2.2 cars have a different DP than non-SAI 2.2s:

07 Manual Equipped 2.2 non-SAI DP/Cat PN 15873731
07 Auto Equipped 2.2 non-SAI DP/Cat PN 115873732
07 Manual Equipped 2.2 w/SAI DP/Cat PN 15806265 or 25832162
07 Auto Equipped 2.2 w/SAI DP/Cat PN 15806266 or 25832163

I can't even find the reason for the 2 part numbers listed for the SAI 2.2s DPs in the parts book. Both PNs for each show the same RPOs. (L61, M86, NU6) (L61, MN5, NU6) NU6 = SAI

Question now is -- is the SAI manifold longer than the cast manifold? -- if it is then switching to the LSJ manifold could cause the problems I've run across.

hmm u got a point i ve never thought that the manifold could be longer i ve looked at mine and it looks the same as every other manifold i ve seen on here and i do have sai

This is definitely an area 2.2 owners need to be aware of. The SAI equipped 2.2 cars have a different DP than non-SAI 2.2s:

07 Manual Equipped 2.2 non-SAI DP/Cat PN 15873731
07 Auto Equipped 2.2 non-SAI DP/Cat PN 115873732
07 Manual Equipped 2.2 w/SAI DP/Cat PN 15806265 or 25832162
07 Auto Equipped 2.2 w/SAI DP/Cat PN 15806266 or 25832163

I can't even find the reason for the 2 part numbers listed for the SAI 2.2s DPs in the parts book. Both PNs for each show the same RPOs. (L61, M86, NU6) (L61, MN5, NU6) NU6 = SAI

Question now is -- is the SAI manifold longer than the cast manifold? -- if it is then switching to the LSJ manifold could cause the problems I've run across.


SAI DP has 2 cats. Its like one small cat, a gap, then another small cat. I think the smaller dual cats are so they warm up faster and put out better emissions to meet California standards. If I still had my stock cat I'd take a pic but it's gone.

I have a 2006 2.2 auto (with SAI). I had the LSJ cat back then I installed the LSJ DP over a year ago. On my car the LSJ DP is a tight fit but its in there without any rubbing. I will soon (within the next few weeks) be installing an LSJ exhaust manifold. When I get under there to do the manifold I'll definetly get some pics for you.

Got an lsj manifold for ya...lol.

Got an lsj manifold for ya...lol.

Bought one already, thanks though :twothumbs

Humm I need to find me an lsj dp. Glad to see it's a good improvement.

SAI DP has 2 cats. Its like one small cat, a gap, then another small cat. I think the smaller dual cats are so they warm up faster and put out better emissions to meet California standards. If I still had my stock cat I'd take a pic but it's gone.

mine has 2 cats:cussing:

So can an SAI 2.2 still swap to a 2.0 dp? Hope so cause while my engine is out today they are gonna (try i gusee) to put a 2.0 dp on. crossing my fingers.

****EDDDITTTTT
You should not need to tune out SAI at all. Keep your stock exhaust mani and attach the 2.0dp to it. If you were to replace your header on the other hand you WOULD need to tune out SAI.

You are in Cali, which means emissions testing is a bitch, u will want to avoid removing sai at all costs it appears. was reading the SAI thread to renew my thoughts.

btw, redding is where i'm thinkin about moving in about 2 years after college. i'll be rolling the cobalt down there this summer a couple times. perhaps you'll say hey

****EDDDITTTTT
You should not need to tune out SAI at all. Keep your stock exhaust mani and attach the 2.0dp to it. If you were to replace your header on the other hand you WOULD need to tune out SAI.

You are in Cali, which means emissions testing is a bitch, u will want to avoid removing sai at all costs it appears. was reading the SAI thread to renew my thoughts.

btw, redding is where i'm thinkin about moving in about 2 years after college. i'll be rolling the cobalt down there this summer a couple times. perhaps you'll say hey

Ok, cool, thx for the info. I really didnt want to spend the money on a tune right now. and i dont plan on getting rid of he sai shit.

Let me knwo when you plan on comming down this summer. Im a fire fighter so im not always arround but if i am we will deff meet up and chill. :cssNET:

you only think it pulls much better because it looks so much different. in all reality, the difference is minimal, and not something you can feel.

you only think it pulls much better because it looks so much different. in all reality, the difference is minimal, and not something you can feel.

Yep. Got the SS Dp in today. Cant really feel any difference. The only thing ive noticed is now my car doesnt pop as much when down shifting to 2nd. But it is a bit louder but didnt change how my exhaust sounds which is good cause i like how it was/is.

probably won't feel any diff till you attach either a 2.5inch exhaust to complete it. :) but you did take care of a hella weak spot in the stock exhaust system.

you only think it pulls much better because it looks so much different. in all reality, the difference is minimal, and not something you can feel.

You underestimate the sensitivity of my ass dyno.. Lol.. I had a header and a 2.5" catback on before i put on the LSJ DP. So when i freed up that choking point, I could definitely feel a difference at high RPMs

https://mail.brockport.edu/wm/eml/genimage.jpg?sessionid=5f74be81cd06bbc656130227544 a9feb5&uid=128&off=2055&len=50722&enc=1&typ=1&mbox=user.jbens1


Sai downpipe...look at that restrictive bitch

lol not as bad as Honda D16Y7's....we had a cat IN our exhaust mani and another below.

https://mail.brockport.edu/wm/eml/genimage.jpg?sessionid=5f74be81cd06bbc656130227544 a9feb5&uid=128&off=2055&len=50722&enc=1&typ=1&mbox=user.jbens1


Sai downpipe...look at that restrictive bitch

Yeah thats recockulous! lol

Well i've got one taken off my ss/sc collecting dust....pm if you want it, i'm guessing the going rate is roughly 60? we can discuss later if there is any interest.

So, is the end result that the LSJ DP works without anything else on the 2.2 with SAI? I thought some people were saying there is another o2 sensor that the LSJ DP doesn't have?