Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post

Shiv@Openflash · 02-03-2014, 04:24 PM

You aren't going to do much better than the stock header if you want to keep a cat there. 99% of the header gains you see on the dyno are from cat removal alone.

02-03-2014, 04:24 PM	#4
Shiv@Openflash Senior Member Join Date: Sep 2013 Drives: 2013 FRS Location: SF, CA Posts: 2,629 Thanks: 1,055 Thanked 5,470 Times in 1,494 Posts Mentioned: 605 Post(s)	You aren't going to do much better than the stock header if you want to keep a cat there. 99% of the header gains you see on the dyno are from cat removal alone.