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Old 05-15-2015, 02:54 PM   #238
904FRSlow
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Join Date: May 2014
Drives: '13 FR-S Whiteout
Location: Saint Augustine
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Quote:
Originally Posted by stugray View Post
When you say "full exhaust" do you mean Header (w or w/o CATs) , overpipe, and cat back?

Full exhaust - MAYBE 10 hp (with a tune)
alum or CF DS - 0 hp
k&N AF - 2 hp

So without the tune, BEST case ~180-182 hp
BUT - ANY "full" exhaust you put on WITHOUT a tune = -5 hp.

So you are @ about 173 hp at the wheels (my SWAG).
I have a full exhaust with a high flow cat on my FP, k&n filter, openflash tune atm, and the driveshaft shop 1 piece aluminum driveshaft. My friend with a straightpipe but stock driveshaft dynod at the same place at 178 to the wheels.
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