Cheap header gains on Stock Z6?

[95CivicDXVX]

A really long time ago I bought a cheap "ceramic" coated header off ebay. I never put it on my other car, but now that I have a new car I was going to put it on. What kind of gains will I possibly see if I put this thing on (but keep the entire stock exhaust - cat, piping, and muffler)? It is a 4-2-1 header. Will I see more torque, hp, better throttle response, cooler engine bay temps? What are all the benefits of doing this on a completely stock car?

[MyblkVTEC]

1-3 hp.... honesly not much if any..... hell even the DC header only makes like 6 hp.... headers dont do too much.... thats why FI is the way to go!

[dohcdelsol93]

not much JP gain x 2. Unless your getting a hytech or equivilent 700+ buck header your not going to see more than a few hp gain and your going to lose low end torque especially in 4-1 headers (not so much in 4-2-1)

In your particular application you won't be losing too much low end torque becuase your running a full stk exhaust.

[guest]

I just had an OBX header on my car, which I regret selling, and you can tell the difference. Get a ebay intake too if you don't already have one.

[Junonuting]

I got one on my d16z6, and ive been happy about it, going on 2 years now, and no problems, paid 60 bucks for that bitch. But i kept it so cheap cause im going to go turbo in the future. I just wantd to open her up a lil.

[lilryanadamse]

i dont think you will lose anything on the bottom with a 4-1 over a stock manifold. you just wont see the gains on the bottom like you will the topend. if i had it sitting around, i would def through it on. it def wont hurt anything and it doesnt cost you anything.

[93civiccx]

Not much with the stock exhaust. Get a high flow cat and aftermarket catback and you'll see a gain.

[Sohc Wrath]

Get some decent headers with a test pipe and a cat back exhaust...

[guest]

Screw getting a decent header, unless your going to make an all motor monster.

[Haysoos]

Screw getting a decent header, unless your going to make an all motor monster.

x2.

The Z6 EM isn't as bad as most manufacturers stock manifolds (ever seen a probe gt V6 EMs? They're a joke), so you don't see as much of a gain unless it's seriously re-worked. Then it will cost serious money.

Throw it on, get 1-3 HP, but just know that to see any real gains from it you will need some intake work and a higher flowing exhaust. Also, before buying anything else, think about whether you will go turbo or N/A.

[guest]

Yes, the decision to go turbo or not is somewhat big. That's why I say just get an ebay header and intake, so if you wan't to turbo it down the road you didn't spend that much money on bolt ons. You could actually use the intake somehow if you wanted/need to for the turbo. As far as exhaust, I would get a 2.5 instead of the a 2.25 so I could use it for a turbo setup in the future.

[Jcazz]

200+ Horsepower is possible... :TU:

[Exodus]

You already paid for it, you may as well use it.

Your OE header is the best choice, but you won't really "lose" anything but time installing the new one. Unless you choose not to put it on, then you would lose money.

Most after-market headers barely have the R&D to outperform an OE piece. The fairly standard 1-4\2-3 first step of most headers is a major block of performance making most after-market headers virtually identical. If you choose to purchase an after-market item such as these, at least buy one with good build quality, it's more likely that way to be one of all of the same that belts out another pony or two, as a pony or two is the only real difference between most of them.

You could go custom though. If you do, try this.

Unequal length
Long primary
4-2-1
1-3\2-4 collector mating (1 over 3, 4 over 2, 1+3 over 4+2 into 1)
Ceramic Coated
Long enough to perfectly delete the cat and flanged to mate properly to the exhaust

If you're looking for real results, you'll find it there.