[spcmafia]

Originally Posted by Spuds

I wound up trying out the Apexi N1 Evolution R. It still drones pretty bad, but the headache-inducing resonance is gone. Definitely a smaller RPM range of drone, and it can be minimized by using a light foot or driving around it, which I definitely couldn't do with the hks. Long story short, I can work with this.

Apexi is not as loud as I feared it would be for a straight through 2.5" single exit. Sounds a bit like stock higher up in the rev band actually, but deeper rumble lower. Can't really hear much in the middle other than drone lol. I do miss the somewhat wild musical note from the hks, but I guess the apexi sounds more... racecar?

Debating whether I will try to add a helmholtz resonator somewhere on it to reduce drone. Way more simple than the hks for that purpose if I decide to try it.

Little shout out to sales folks at Speed Industry (86 Speed) for the help getting this one.

Forgot to take a good picture while the car was on the ground, and now it's back on stands again because I just can't stop myself...

Did you re-use the OEM hangers or got JDM ones.

JDL and Fujitsubo make double resonated Front Pipes but are pricey. Your best/cheaper chance is to go OEM Front Pipe to completely reduce drone.