i was saying.. i installed the DP last night... and now im going to get the stage2 with manifold installed soon

 

good luck with the installs. how long did it take you to install the DP

 

start to finish... about 45min... including lifting the car on my lift, and running back and forth to my toolbox

 

damn, i need to find a jack or a lift so it will be easier

 

how much was da down pipe ? and how much to install

 

go to www.cobalt-addiction.com , performance, headers, and its under there. install do it yourself.

 

no.... cat's you should break in but hey he can listen to you and mess up his cat then you can buy a new one for him once it clogs......


And Please tell me i don't know what im talking about since i've been through 5 cats my self two being CA downpipes with cats and i live over here by them and have seen my friends own there cats too if they beat on them straight outta the box......Taking the time to break it in dont hurt so why not just do it. I don't know about 500 miles but at least somthing

 

Damn! that sucks. guess those Mach 1 move out huh?



Wow, had no idea about this break in period. Never herd of such thing as im use to always runnng catless. But thanks for calling me a rude name that wasnt needed we can all see how mature you really are dad

 

HAHAHAAH yeah i know calling you a dumass was uncalled for my bad. I'm obnoxious sometimes

 

Its aiight dude. I just had no idea about the break in period for a cat.

 

well with the CA ones especially i'd advise breaking it in. but i don't like to talk about it. I'm in good standing with them so i decided to not judge or rate any of there products on the forums. Its just better that way.

 

I donno dude, eveyone would wanna now what products are built good to help us know more about them and see what works best, dont you agree? Isnt there a product review section on this site?

 

i believe there is one but in all honesty my favorite one out of all the down pipes is the stock one.....

 

Whys that?

 

Yeah, I love the fact that the stocker narrows down to 2" as it enters and exits the cat. This makes for a major increase in exhaust gas velocity - maximizing extraction. This more than makes up for the restrictive stock cat.

Plus that flat spot where the o2 bung is...hot! If they only flattened it on the other side to match, it would have been perfect!

 

I'm up to 262 WHP and i still got that stock DP and cat on my car your raging on plus my pulley is only a 3inch. you drive a 2.4 auto, kill your self. Save your sarcasm for someone else buddy My knowledge on what works on a cobalt > yours. Tell me smart ass have you seen the HP increase from swapping out that down pipe before and after? Well i know i have It ain't nothing to write home about. You got bigger fish to fry when it comes to restrictions in your exhaust. Just cause it looks restrictive its the easiest one to put the blame on. It sucks don't get me wrong but it less restrictive than the most restrictive part inline with it if that makes sense. its been more reliable than most for ME so i'll stick with it even though i chew through them also. Hell the stock one on my car is about to go again before this summer is out but know what i'd sooner get another stock one than an after market one again. Your the same type of person to complain about the stock clutch sucking ass when I have friends here with more HP than me on there cobalts rocking the stock clutch with out a problem. I love it when lemmings and sheep wanna pipe up and try and tell me something cause they see im not riding on the same bandwagon as them, **** is hilarious.

 

hey everyone i was wondering if anyone had the corsa touring exhaust and if it is worth the almost $800 and if anyone had the vibrant header cause that is also almost $800 so if someone could give me some info on those i would app it thanks

 

Gee, Touchy are we?

So you honestly believe that your 262whp Coby will produce less power with a freer flowing exhaust? Why not just run 2" piping front to rear? A nice smooth 2' pipe will be less turbulent and therefore less restrictive than a couple of 2" choke points (think kinks in a garden hose.)

Any pipe, your exhaust included, will only flow as much as its most restrictive part. So If you've got a header and 2.5"-3" piping front to rear, what is the most restrictive part?

As far as me driving a 2.4; I drive what I like. I paid cash for my 2.4, did you do the same? I could have purchased a car costing twice as much - for cash if I chose to. I have been building and racing n/a and f/i vehicles before you were old enough to ride a tricycle, so I think I know a few things about engines.

I chose my car not for performance, but for mileage, style and the oft maligned auto tranny. Performance came last after the other conditions were met. If I just wanted to go fast, I would have kept my goat, or my built 454ci GMC pickup, but the mileage sucked on both.

I made a statement of fact, not a personal attack. If you can't take criticism, of what others believe to be a dumb post - then don't make dumb posts. Maybe us lemmings disagree with you for a reason?

I really like my Corsa touring, but it is probably not worth the money (on a hp/$ basis)unless you really want the highest quality cat-back available and don't mind paying for it.

If you want the best bang for your buck, just get a muffler shop to mandrel bend you a system from high-quality stainless steel, weld on a magnaflow and your good to go.

But you won't have a Corsa.

I'll always remember something my dad once told me. He said "Son, never be afraid to buy the best, cause you'll never be disappointed."

Value is subjective, but quality isn't.

 

yea i def dont mind payin the cash i was wonderin if it was worth the price i heard it was thats y i asked cause i didnt kno if anyone else was willing 2 pay and if it was worth it cause im also getting stage 2 so im hopin that will make up for the power its just hard 2 find stuff thats good at a reasonable price but when im done wit all that im hopin 2 have around 300hp wit the cai i got and gettin stage 2 and full exhaust header and stage 2 axles and when all thats done my next project will be a beefed up trans if anyone knows a good site 2 get the stuff for the trans let me kno and any advice on what i should or shouldnt get let me kno cause this is my first car wit forced induction im used 2 messin around wit my brothers trans am wich is in a whole dif ball park

 

darksun is 100% right. dont forget even with boost its only a 2.0L, so big exhuast will hurt these cars with only 15-19psi efficently. that neckdown in the stock dp does create greater velocity coming out. Also, i guess you dont know any serious engine builders, a few years ago prostock discovered that smaller(and to a degree less smooth) exhaust ports acc. increase flow tremendously, its called velocity so it will move exhaust much faster) Darksun has been around the cobalt scene for a long time, infact hes the first one in our area that i know of to experiment with these cars without going real extreme, not to mention he has one of the baddest 3.0 pullied cars around. What does paying cash for the 2.4L versus SS/SC matter? i paid with a bank check for just over 20,000 for mine, does this mean im special nope!.....or even the fact that i have a legitamite 1000+hp horsepower streetcar i also drive does that make me cooler? NOPE!----im still a loser.


I got ya back darksun.

 

Im with Darksun . I been thru a 2.5 and 3" aftermarket DP and Im happily back to just running the stock DP with NO noticable loss of power ...dynometer or butt-ometer . ::shrugs::

 

just the cat needs to be broken in.

good way to ruin a new cat.

it needs a few hundred miles to break in properly

 

I dunno, I've been in the automotive buisness for years, I've never heard of a concertor breakin period. I've sold lots of regular and highflow cats and none of them say to break them in. Sounds kinda like a myth to me.

 

some people seriously need to learn the science behind air flow, and velocity before making claims out of their ass.

gm has come a log way in their exhaust. they are right, the dp is NOT the problem with the exhaust.
it does just fine.

 

I agree about the stock DP, I put my original downpipe back in after i put on my 3" catback because the 2.5" catless XTC downpipe was so freakin loud with the CTI exhaust, and it dumped exhaust so freely that my low and mid power felt worse.

Also, around the header and downpipe where the exhaust is super heated, the gas is has an easier going through smaller diameters than when the gas cools down through the catback.