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Full Version: Header recomondations for 5S-FE
6G Celicas Forums > 6th Generation Celica > Engine/Transmission/Maintenance
I'm doing a full motor rebuild of a 5S-FE for my 1997 Celica daily driver. I'm thinking about buying a set of headers for better performance, but also mainly because the stock exhaust manifold is in poor condition. I've seen several different brands available, but am not finding much information about any of them. I would like to find one that will work with the rest of the stock exhaust system on my car and not make it excessively loud. My Celica has a Catalytic converter located just below the manifold which has an O2 sensor and there is also another O2 sensor in the stock manifold.

Is there a make/model of header that will simply replace my stock manifold and allow me to use the catalytic converter and both O2 sensors?
Or, since I've noticed that other posters who have headers have not really seen an improvement in performance, even if it might cost a little more, am I better of just buying a new stock manifold?
Does the heat tape that I've seen on some sites do a good job of controlling excess heat?

This is one brand I've been looking at:

You're correct in saying that a header doesn't really add much to performance. Most guys don't see much of an increase, the 5sfe isn't really a performance engine, but more an economy engine.

I'm pretty sure the link you posted is the same "eBay" header that everyone gets for the 5sfe. One thing to note if you do go with that one, is to heat wrap it. Once it gets up to temp the finish turns all kinds of funky colors. It'll also keep the engine temps slightly lower, as you'll no longer have a heat shield with an aftermarket header.
I had that header on my old 5s and if I had to guess I maybe got an extra 5-8 horsepower (no dyno to prove it). It does eliminate one of the 2 cats so there will be a noise difference. In my opinion it is not worth it but in your case if the stock exhaust manifold is in bad shape it is a cheap solution.
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