Question about headers?
 

I'm thinking about changing out the stock header setup on my 2010 Nismo. One of the options is changing out the cats with resonated test pipes, and the other is going the long tube headers route. What do you guys/gals think about either of the options? The car originally had FI long tubes from the previous owner, but apparently they were removed and put back to stock for an emissions test or something to that nature (no emissions to deal with here in SC.) The car was Uprev tuned with the headers, so I am aware that it will have to be retuned if I go the test pipe route. Thanks for any info!

Btw, my car currently has: Motordyne intake manifold, FI resonated catback, K&N intakes, NST underdrive pulleys and an oil cooler.

I heard headers aren't very beneficial in these cars when considering the amount of work required to install.

Where at in SC are you?

Replace your K&Ns with Stillem G3s. Skip the headers since you already have test pipes

I'm in the Greenville area (Simpsonville)

What kind of benefit might I be seeing with the G3 Stillens? Also, don't have the test pipes yet, stock headers and cat going to a FI catback

Gen 3's and Takeda's will get up 15+ WHP with tune, Takedas are less pricey then the Gen 3's also.