EOE

Kinda silly but if I was to bucher my HKS hi-power and header back do 3" from Lou's custom piping with HKS muflers. Is that worth it or I have to have specific muflers as well?

Reason I ask is I like drone free silence of HKS with on demand boom.

CapoArgentino

I built a 2.75 inch straight pipe with a cherrybomb glasspack after the non-resonated test pipe replacing the cat. No other mufflers or resonators, just straight angled pipe out back, very similar to the pics of the first post. I wish I had dynoed that setup. Power gains felt amazing but it was at the top end (5K+ RPMS) which was perfect for me. Took it off cause its very loud in high RPMs.

First and second gear vtec redlining were specially unforgettable.

[AP2-2NV]

i did something similar when i had my S. i had an Invidia dual 70mm exhaust. cut the pipe after the resonator (which is 3" btw) and ran a 3" pipe from there back to a magnaflow 3" muffler.

was quieter than the invidia setup, low end felt the same top end opened up A LOT.

so it was 60-70-76 from the cat back.

my future S will have something similar for sure.

ap1_tot

[QUOTE=GT Motoring,Feb 24 2010, 08:04 AM] We actually use 3inch exhausts on our K20a race car too with great results. Its very common for most K20 cars to have a 70mm or 3inch exhaust on those running cams and some mild upgrades even.

ennjoi

buddy club spec2 for the ap2 FTFW!!!!

gospeedgo1

was this compared to stock or 70mm exhaust?

LickyMYwalker

seriously! i would love it if buddy club came out with a spec ii for this car.