no it seems like the JBP header with a downpipe that will fit, im not sure what downpipe can fit like the stock one and then get a catback as well, i think JBP sells the header AND downpipe together for like $1000ish? then you go and get some aftermarket catback, if you really want a beast exhaust im thinking JBP header/downpipe with the ARK catback! WOWEE that could be godlike

 

Im gonna have to toss my chips in the C.A. header pile. Its reasonably priced, its good thick stainless steel, its a snap to install, you can do most of the work from the top of the engine bay, They ship fairly quick and come with some Pretty fair gaskets it already has the O2 bung welded on. It feels like a good 10-12 whp and 8ish ftlbs tq gain on a 2.4 LE5. My ass dyno is pretty accurate for those who question but unfortunantly the print outs, well stink.

To the fellow with a gasket leak... A small bearly audable Collector leak on one of my prior cars was enough to drop it +- 30 whp(on an SBC) so yes when you fix it expect big gains.

Ill save the 1k headers for a car that is worth over 20k to some one other than a shadey ass dealership.

 

that was me with the gasket leak, i bought a new gasket for the extrude honed manifold just in case its any better than stock and i got extremely high temp gasket maker stuff and im going to put that stuff on the header and downpipe gaskets, ill do all of that when the car comes back from chevy cause of my 2nd gear. i really do hope to see a good gain because it seems to have not gained anything really.

 

hmmmm so the ca header adds 10-12 whp well how much does the zzp one add anyone know??

 

supposedly 15whp with the downpipe on a 2.4 no tune. CA is just a header and claims 10whp so thats pretty good.

 

would you be able to install it even if there was a O2 bung welded to it???

 

header and downpipe I do believe. Without the downpipe it would be pointless to do just a header. The downpipe form what I have read is very restrictive. After talking to Illmatic3s
I have decided to go with the CA header and downpipe W/cat.

 

ZZP Midlength header and downpipe.

They come off the head and shoot practically straight into the downpipe, so the airflow is awesome. You'll feel it. Up top it hauls ass. Puts you in the seat and keeps you there.

As for the sound, it gives it a slightly raspier sound, but it's deep and sexy. Ask anyone who has heard my car.

People will claim the quality is terrible with ZZP and stuff is always breaking. I beat my car and haven't had a problem yet and I've had it for over a month (about 1,000 miles -- I drive a lot!). Any problems you could have are installer error.

I highly recommend.

 

ic is it good to have the )2 bung on it tho?? if i get it???

 

yeah your right about the quality and ZZP **** breaking

 

JBP Noodle Header. no question about it.

 

i call it 1 of 2 things, either Spaghetti Junction (resides in Atlanta), or ramen noodles

 

let's put it this way. I said to myself, "self, you'll never invest in a wideband".

Well, they accidentally sent me one with the extra O2 bung. BriantheLion gave me a call the other day and said he just got HPtuners and is trying to pay the credits off and could [non-dyno]tune my car if I had the extra O2 bung.

So, I got tuned yesterday, I love the tune, my car responds totally different, and I couldn't have done it without the extra bung.

Moral of the story, just get it, you never know who you'll bump into. It makes it too easy to tune.

 

what about the GMPP extruded and horned manifolds, how are they? HP sound?

 

Better of getting the CA header.

 

that wasnt my question

 

with the combination of both you will probably see no more than 5hp, and thats pushing it. and with both the sound will be barely louder than stock unless you get the sport exhaust and its not even that much better. we dont lie when we see this thread about JBP and instantly cream our pants, this is hands down the best sounding noise ever to come out of a cobalt

 

i would still say go with the zzp headers and down pipe. but ya if u have the money and the patience get the JBP headers

 

im looking in getting the zzp from the looks of it i could get some good gains

 

you'll love the zzp headers

 

if its not defective

 

JBP

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the JBP header are a reali big pain in the ass to put on arnt they??

 

so? once it's in it's in. you gotta pay to play. don't skimp because the install is hard.

 

i've had no problems wit my headers or down pipe.