i just got twin varex 4" cannon styles but on with a stainless 2.5" pipe conversion after the Y join. i love the sound, but there is a bit of drone on the low rpm with it fully open. I normally just have it 30% open for daily.
From tuning a few f20c with and without exhaust the conclusion is the factory OEM exhaust flows very well. I've seen the HKS HIFLOW (pm if you want to buy it, its done less then 500km) exhaust which has the same diameter piping as AP2 exhaust, slightly bigger piping Y pipes and round cannon like mufflers.
If you want noise then yeah go ahead and spend 1-1.5k on a aftermarket exhaust. The factory exhaust are well tuned and are capable of flowing with engine making up too 300kw atw (FI).
fatboyz i have never seen a stock exhaust flow that well with a tune... i must have a shitty tuner.... i'd love to see dyno sheets if you have any?
i feel that the stock exhaust was VERY restrictive.... and the stock cat!... that must go IMO.... run a berk 70mm or if track use just a TP.... thats where you gain some good power... and then if u tune also, you will be surprised...
you want quiet, put the silencers in.... or buy a toyota echo.
if you buying an exhaust for the look its a bit of a waste.... you buy an exhaust for power increase.
Then you should have bought a single :P
Stock S2000 Exhaust flows very well which is why alot of aftermarket exhaust out there struggle to make much more power then the stock setup. Didn't think it would be able to handle upto 300kw but now you got me interested, pig power setup but with stock exhaust is quite the sleeper.
FYS
My fake shit rocks!
Winton 1:35.4
Wakefield 1:07.87
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