Greddy Evo 3 performance (w/ or w/o silencers)
 

Just recently had the Evo 3 installed on my FRS, Ive been looking around for a definitive answer for my questions which is:

Does the silencer reduce significant amount of airflow to feel a difference in reduced whp?

Ive been looking around for a while for dyno results but most are without silencers, some say that with silencers it wont make a big enough difference to feel any reduction in performance, some say because the Evo 3 has such large piping it needs a little back pressure for it to run smoothly, and as well some say it restricts too much airflow and creates excess back pressure and will reduce performance.

I have the injen SRI with the Evo 3 catback

Any input is appreciated!

You have the exhaust, go dyno your car and tell us about it. Otherwise, do your research, here I'll do it for you in 5 seconds:

http://www.importtuner.com/tech/impp...er_power_loss/

There are no dynos from where I live lol.
and I have been looking around for a while now, thanks for your kind input