DC sports header is very good. I have a Strup header its polished stainless rather than ceramic coating but otherwise looks very similar to the DC header. If I was going to get a header now I would get the DC sport because it is CARB certified, I dont think any other brands are ok for on road use in California.
i've only heard good things about dc headers and the strup headers. i myself got a set of alpha-werks headers and i am very happy with them. it made my exhaust sound much nicer. the guys at alpha-werks told me that it is carb-exempted for cali... yay for us in cali. it's a 4-1 header aswell as the dc and strup. the only ones that i know of that are 4-2-1 are the MMW ones and the OBX ones.
Im hoping I pas smog 0 cuz i dont want to ut those banged up pea shooters back on my wreck. Greddy is a 4 to 1 - so you have all four out takes going straight in to 1 fatty. less "resistance" than 4 - 2 - 1, youd need a dyno and both types to know for sure.
The added growl is nice ! At most I noticed about 100 - 200 RPM lower at the same speed I drove @ before the bolt ons. In short - 1 to 2 miles an hour faster - for the same RPM. ( output ). doesnt seem like much - unless youre behind me for a couple of hours. and 2 miles up the road.
I have the Strup too and when it comes time to smog it I'll throw on the heat shield with a couple of home made brackets, and they will never see if it has been changed..... or..... throw on some rust colored BBQ paint and it'll look like the stock exhaust w/o the heat shield.....LOL
I'll probably try to sneak it by the smog guy like kurt I still have my stock exaustso I can go with that it only takes a hour to change back. Or someone could let me borrow their DC Sports CARB sticker and hope the smog guy buys it.
Yah - I used to pass smog with my Honda Civic before - and that car had an afternarket Catalytic and magnaflow exhaust. I'm just taking mine to a cool shop. those engines run so efficient anyway - Im hoping all I have to change back is the Air box - if anything at all.
i know and that was shipped, so i couldnt really hae on it. the merge collector had some welding slag on it, but it was no prob to smooth out, i actually smoothed all the welds out. this price is way cheap sine we charge almost a g to build just a merge collector at work... i mean it is a lil different one off fab shop or production pieces. check out our work at m1fd.com