Just bought new headers wtf is this loud noise??

i just bought me a gsr completely stock. i installed dc headers and it makes this "go-cart"- like sound. is this normal? the headers WERE brand new, no grease spots inside or anything. also, from my cat all the way down is stock. is this probably why its making this ridiculous noise??will it stop if i keep driving it? anyone that has bought new headers please tell me if this has happened to you....

hey man...i kno exactly what the problem is. I just got new headers too. And for a while it sounded like a lawn mower. Can u smell carbon monoxide from under your hood? yea thats becuase ur gaskets have a leak in them! This creates a leak in ur headers causing the gases to sputter, giving that lawn mower sound. Just Replace ur gaskets (I did) and it'll purr again. But i have a question too! My check engine light turned on after my mechanic messed with my catalyic converter. He removed the 02 sensor at an attempt to install my racing cat. So is the computer suppose to fix itself? or is there something wrong?

i just bought a 99 integra ls with a JDM conversion kit type R spoiler this sweet 17 inch wheels honda accord front end. anyway the first thing i ordered was a set of dc sport ceramic coated headers and aem ram air. this gasket you speak of, is it the same gasket that is included with your headers or was it the gasket that was originally in. I also have a question . as far as cat backs are concerned should i go with the dcs8008 i think or the apex gt spec or n1 all three i found for about the same price........
. suspension is also my next step and short shifters. Dc sports were all reasonably priced front and rearupper strut braces, rear lower, and suspension techniues sway bar kit, also dc sports short shifter all for 715 bucks any suggestions

[QUOTE=martin9]i just bought a 99 integra ls with a JDM conversion kit type R spoiler this sweet 17 inch wheels honda accord front end.

Do you mean you have a JDM front end conversion, that slightly resembles the old Accords, but actually is a JDM Integra front end?

as far as that o2 sensor goes did your mechanic really just take it out? I wouldn't expect any good mechanic to do that. As far as the check engine light goes, it's never gonna go off until you get that sensor back in! besides, leaving it out robs your engine of hp and fuel efficeincy

[QUOTE=martin9]i just bought a 99 integra ls with a JDM conversion kit type R spoiler this sweet 17 inch wheels honda accord front end.

I can only assume that this accord front end you speak of is realy a type r jdm front end conversion. If it is, the fact that you thought it was a accord front tells me you don't like it that much. If that is the case, would you like to sell it. I'd gladly give you my front end along with some $ for the trade. My front end is from a 2000 teg w/. the Type R front lip. Keep in mind we would just be trading fenders, not engines.

[QUOTE=martin9]i just bought a 99 integra ls with a JDM conversion kit type R spoiler this sweet 17 inch wheels honda accord front end.

Do you mean you have a JDM front end conversion, that slightly resembles the old Accords, but actually is a JDM Integra front end?

wasn't sure which front end it was but nonetheless it is hot, tyring to locate cd that came with my digital camera so i can post it up here. I am satisfied with the body now it is time to work on the engine. gt spec doesn't fit(i don't think), dc sports cat back looks nice. any suggestions. headers, and short shifter are in the mail. Aem ram air in the mail. not looking to lower car just yet live in albany ny roads suck. but would definitely like the car to handle better. how would you rate dc sports strut tower braces and suspension techniques sway bars, any other suggestions. and the conversion kit is only for the body nothing inside the engine compartment, sorry a little new to the integra scene . actually only 2 and 1/2 weeks

[QUOTE=martin9]i just bought a 99 integra ls with a JDM conversion kit type R spoiler this sweet 17 inch wheels honda accord front end.

I can only assume that this accord front end you speak of is realy a type r jdm front end conversion. If it is, the fact that you thought it was a accord front tells me you don't like it that much. If that is the case, would you like to sell it. I'd gladly give you my front end along with some $ for the trade. My front end is from a 2000 teg w/. the Type R front lip. Keep in mind we would just be trading fenders, not engines.

just looking for information on my car. am very satisfied with my car jsut looking for some input on some fine tuning to the engine

Can u smell carbon monoxide from under your hood?

uuhhhh, how can u smell carbon monoxide? its a colorless and odorless deadly gas. u might be smelling something like the carbon residue or whatever, but u can't smell carbon monoxide, just some fyi.

what you need to do is go to Pep boys and buy the cheapest header gaskets you can find, but buy like 3 or so. most of the times the noise you hear is from the exhaust fumes escaping in between the headers and the engine block. Here's how to fix it. Go and buy "High Temp Silicone and sandwich 2 of those gaskets together with some silicone in between, before they dry up, add a lil bit of silicone to the face of the gasket, (the part that actually touches the engine block. Slap the gasket on and slide the headers over the gasket. If u did it right as you tighten down on the bolts, using the right pattern of course, you should see the silicone squeezing out from in between the gasket and the engine block. Wait until it dries up, ( i wold wait til the next day), and then using a blade, just cut the excess of the silicone that sqeezed out. I learned this trick while working on old RX-7's.

I just replaced my header, and when I'm in 4th gear going like 35 mph and floor it, I get a weird sound. It kinda sounds like sand or rice being blasted through the header, kind of a hollow sound. It tends to go away in higher RPMs, and get less noticeable as the car gets warmer. Is this normal or is this what you're talking about? I can't really see there being a leak, but I guess it's always possible. I might just be paranoid, you either have to be outside the car, or have the windows open, or music down in order to here it. So, I guess I'm asking if this is normal, and if not what could it be?

I just replaced my header, and when I'm in 4th gear going like 35 mph and floor it, I get a weird sound. It kinda sounds like sand or rice being blasted through the header, kind of a hollow sound.


Yeah its normal. there's supposed to be rice flyin thru the honda's engine all the time, dont worry.

the noise could be coming from the header where it bolts onto the cat. it's bolted on to the cat with 2 bolts that have springs around them. If these two bolts are not fastened enough, they can allow exhaust gas to escape which will create a hissing kinda sound. When i installed my headers they made a weird noise that i didnt like. it sounded like exhaust gas was escaping from somewhere. i tightened up these two bolts some more and the noise went away.

also make sure that the doughnut/ gasket thingy that goes at the end of the header is in good shape and not broken up.

It sounds more like it's coming from the top part of the header instead of by the cat. I torqued all bolts to specification, so maybe it's normal. Is there any way the gasket could've gotten messed up, it couldn't have been bolted together if that gasket wasn't in the intended groove. kcap122, I caught the sarcasm with the rice, but is it actually normal to hear that sound?

Have you considered the Skunk2 Cat-back. Racing exhaust system. Pretty sweet. Makes a good sound. Not one of those 20 dollar dirt bike ones. Its worth all the money.

Ziggymidget5, i have never installed a header myself, hah, im just drivin around in my jeep for now.

But what i can tell you is that my wrangler is a very un-soundproofed vehicle. And anytime that the revs are between about 1500 and 2500, the whole car resonates with the engine. The only thing I can think of is maybe the header has a resonation that just works with your engine that way.
Oh yeah, also I'd check and make sure something isnt loose on the engine side of the header. It's quite possible that a exhaust valve or something got loose while you were installing the header, and is now vibrating around. That might also explain why it goes away at higher rpm's; the valve would have more up/down inertia and therefore less ability to knock around. just my :2cents:
You did say it was kind of a 'hollow' sound. Also, why did you have to replace the header?

He replaced it because it opens more space for the gas to flow through...he obviously plans on adding more power, therefore making more air flow, therefore giving the need for more room to flow, that or he wants it to look good I dont know

He replaced it because it opens more space for the gas to flow through...he obviously plans on adding more power, therefore making more air flow, therefore giving the need for more room to flow, that or he wants it to look good I dont know

reason i asked him was because maybe he had a prior problem, like the gasket on the header was cracked, and therefore mightve left some pieces behind in the assembly that are right now vibrating against the pipes.

I just replaced it for more power, along with the hi-flow cat, cause I wasn't gonna mess around with old exhaust bolts like I did for my cat-back. I replaced the gasket and I cleared away any loose debris in the exhaust ports. I'm pretty sure I'm replacing cams, springs, retainers, and cam gears soon, so I'll probably check it out again. Also, Xteme 098, idk if you were talking to me about the Skunk2 cat-back, but I love the sound of the 5zigen. I don't know why more people don't recommend it, low rumble, relatively quiet (I think my CAI is much more noticeable), good looks, but you can still tell it's there sound wise. I've heard the Skunk2's are also good, but if you're going for a little quieter, I'd definitely recommend the 5zigen.