Invidia Gemini R-400 Exhaust Fitting to UEL Headers
 

I am looking for a UEL header that fits up well with the Invidia Gemini R-400 and the HFC Front Pipe. Anyone out there know what headers I need?

What do you mean "fits up well"? Are you trying to reach a particular volume level or exhaust note? Do you literally mean if it will bolt up together? Did you change the overpipe?
As far as I know, all common aftermarket headers (JDL, Tomei, FT86SF, etc) will bolt up to the stock, or most aftermarket overpipes.

You can get any header as you have an overpipe in-between all headers and any FP minus ace headers. Tomie UEL are popular. JDL UEL would be my choice. Just make sure you go catless.

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jflogerzi What's the benefit of catless?

More power, more sound. Catless is less restrictive.

Correct if not going catless just stay stock IMO.

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I see you've changed the title of this thread. The Invidia R400 is a catback. The headers have nothing to do with fitment to the catback, as there is still an over-pipe (The one that bolts to the header and snakes over the front passenger axle) and front-pipe between them.

I still have no idea what you're asking or what your goal is. Are you trying to reach a certain volume level or sound?

If you have a stock over-pipe still, then any header would work except for maybe some long-tubes.