Best SRI in terms of gain

89simonSF

Member
12
1
Boston MA
Vehicle Model
Civic Si
Body Style
sedan
Was wondering which SRI is regarded as the best in terms of adding performance at this point?

2013 Si Sedan (Dat bright red)
 
I just installed the K&N. The sound is pretty sweet, but I am not seeing any performance gains. I think I'm actually feeling less power in 3rd+ gears :(
 
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