Title says it all. What would you recommend. DC Sports SS headers, or Borla SS headers? I'm planning on buying one of the two and can't make up my mind. Oh all how will they work(fit) with the exhaust I have and I'm also planning on adding Crawford cats.
I think the Borlas actually show a loss in power...might want to look into that. DC's have decent gains from what I've read.
If you want to save some dough and gain 10-15hp and 8-10lb/ft across the board, try to find someone selling their TopSpeed headers that got them through a group buy. I got mine for $250 shipped, including gaskets of course.
The thing is, with our engines, the main componants are already pretty well engineered. Headers dont change the sound of the engine, therefore, the company has no reason to make headers restrictive. Now, exhausts do change the vehicle sound, so it makes sense to change the exhaust (because stock, it is restrictive). Same with intake, cats, etc.. Dont waste time on things that are not, and have no reason to be restrictive.. this is a $30K car here, the engineers are paid enough to do a good job!
Ceramic is the second best material to use for headers. It dissipates exhaust air quicker than stainless-steel and I think it's a little lighter than SS. However, titanium is THE best there is...it's the lightest, although it doesn't dissipate heat as well as ceramic, which you could JetHot coat it and have the lightest material with superior dissipitation.
Ceramic isn't a material that headers are made out of, it's a coating that reduces heat transferred to the other side of the metal and also extends the life of the metal from corrosion. Mild steel is used (majority of the time) with a ceramic coating.
Edit: Mild steel (ceramic) isn't that good of a material either. Jason at Performance has the ceramic DC Sports headers and he said they'll start to rust in 5 years, but he doesn't care because he'll have something different at that time. If you're going to swap out headers, I'd suggest going SS.
With the proper coating, mild steal will last as long as SS. mild steal handles heat better than SS. It has better properties that allow it to expand and contract due to heat better than SS, which has the potential to crack easier. The crawfords are mild steal because the collectors used to fabricate them are not made in SS - this is what craford informed when I inquired about the material. Mild steal is easier to work and is cheaper with and thus should translate into a cheaper price, but as we all know, the crawfords are cheap.
A forum community dedicated to Nissan 350Z / 370Z and Infiniti G35 / G37 owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, exhaust, turbos, maintenance, and more!