hi guys,

i have a 1996 integra gsr, i was planning on gettting the dc 4-1 headers and i was wondering if it would bolt up perfectly to my stock cat. i have heard that the collector on the dc headers is 2.5 inch and the stock cat flange is 2.25. lmk guys thanks!!!

 

I'm pretty sure it's 2.25 on the DC

 

I had dc headers on my gsr a while back, and they have a 2.25 inch collector. They will bolt up fine to your stock cat. They dont really make much power though. If you dont need to stay carb legal, consider getting a 2.5 inch test pipe and a kidd racing rmf replica header, or a reputible header with a 2.5 inch collector. Now a days dc sports headers are considered to be old technology and a lot of people like to bash them for one reason or another. I have come to find that aftermarket parts are kind of like electronics; there is always something new coming out that is supposed to be better.

 

It should, I used to have a DC header on my 2000 GSR and it bolts right up to the cat. But like 1998GsrIntegra said, If you dont care bout the carb legal just get a rmf narrow replica from VtecKiDD. Im ordering me one by the end of this week maybe, if i can save up by then. And he also give you a free test pipe too, isnt that just great? haha

 

where i live i have no concern with being carb legal, however i just get the feeling that if i get a test pipe my car will sound like crap. im not too into the raspy sound. and from what ive read dont you have to cut away at your radiator fan in order for the kiddracing header to fit?

 

You shouldnt have to make any modifications for the kidd racing header to fit. You may need to take a rad fan out during installation for room, but thats about it.

 

Yea, you'll have to trim a little of your rad fan, but to me thats no big deal. And the test pipe, just keep your stock exhaust on it wont sound like crap and with the test pipe it'll have a better air flow.

 

why in gods name would you buy a DC when so many better choices exist?

none of the good ones will bolt to the factory cat

the only quality header i know of that will is the edelbrock 4-2-1 which not only has a better ceramic coating than DC it's just a better design. you also can collector mod it down the road if you go to a 2.5" cat and have a slightly better header than a jdm itr 4-1

 

i gave up on the DC sports purchase after i found out about the tuned header replicas that vteckidd offers, i went with the RMF narrow replica he offers and havent looked back since, there is posts in his thread in the marketplace of how well made the thing is for 325 bucks

 

is there a way to keep your stock cat with the kiddracing header?

 

the flange on the cat would have to be upgraded to 2.5" which may be possible at a muffler shop

 

ok thanks, also the header looks really long, would it push my cat back?

 

yes and there isn't room in the exhaust tunnel for it. what a lot of guys do is keep the stock cat and manifold for stock, then bolt on the rmf for 2 years.

the only quality carb legal choice is the edelbrock but it won't make the power of an RMF since it uses the oem collector

 

wait, so if you were to put on the rmf, you wont need a cat?

 

I kind of don't want to mod anything it would be better if it bolted right up. So edelbrock over dc?

 

if you want a direct bolt on with no mods this is about your only decent choice

http://www.importtuner.com/features/...der/index.html

best quick google price i found

http://www.jdmhub.com/index.php?rout...644_9624_28265

i'm fairly sure it's the DC carb legal that this beat by 3whp BUT the build quality of this thing is also just night and day better than DC, few more hp, better torque curve and better build quality. no brainer for a smog header

the other cool part about this header is it will put down a jdm itr 4-1 if you do the 2.5" collector mod and run a 2.5" cat. so, if you mod down the road it's still not a bad choice. the rmf is of course better for all out power but it also can't be used with a cat

 

dayum, 385? i rather just go with the rmf.

 

I ran a DC 4-1 SS for 8 years. Made about 180whp, for its time it wasn't bad, I'm now running SMSP. As for CARB legal, I don't think you can get the Edelbrock any more. Doesn't the Skunk2 bolt up and isn't it CARB legal?

 

they dont sell the edelbrock anymore?

 

LOL yes they do, summit racing has them in stock and or i just posted a link to a store selling them

 

Sorry I'm going to say it DC is junk they make poor power on the dyno. You couldn't pay me to run a DC header for the same money you can get a knockoff hytech tri y header on ebay and you'll gain mad whp mines supercharged but I gained 20whp over my DC and weapon R and the kicker was the steel quality was better on the ebay knockoff then the DC or weapon R granted someone will have to fabricate a flange reducer to make it work on smaller exhausts there worth every penny. Go with products that make power

 

i have same header, they fit fine.

 

I believe the skunk2 header is over 700 dollars and I don't think it's carb legal. I have a comptech header on my gsr and I love it. Pretty hard to find though. If you can find one its definetly worth it and it's carb legal and bolted right up to my stock cat

 

skunk2 megapower is similar to the rmf, they make great power but are designed not to use a cat.

 

besides edelbrock, what is a another good carb legal header that bolts right up to the stock cat?
i just want a header that will make as much power as possible and still bolt up to my stock cat.