I like the Invidia catback exhaust and the LMS exhaust sounds interesting as well

 

Wald is my all time favorite an then Greddy. All for looks only. Let me help you with this link. https://www.clublexus.com/forums/is-...iy-thread.html

 

F Sport exhaust IMO

 

i would have to vote the F Sport(only because i have it lol) and the Greddy SP elite. a fellow IS owner here in LV has the Greddy SP on his IS and it sounds dope

 

My exhaust (5zigen A-spec discontinued) and then the Wald exhaust!

 

HKS Hi-Power ftw

 

Greddy Spectrum for life. Best Looking of all and sound is quiet and not loud like a ricer!!!

 

nobody mentions about JoeZ?
Anyway, F-sport is what i have and very happy with it

 

Okay. I vote JoeZ + ppe headers.

Threads like this are just so biased to what you own. Meh. Most anything is better than stock lol.

 

Agreed!! I must say I have owned Greddy & Megan on my prior vehicles. Now running a Joe Z. Even though I couldn't compare from a car to car basis, my opinion from experience with these three systems is pay the extra and get the Joe Z its a phenomenal system. I hate the polls and Heyarms is so right everyone is biased based on what they own. To me see the results/workmanship/quality/actual gains. Based on my readings you will get sound with minimal gain from HKS, F Sport, Greddy it may sound nice but seeing as there are minimal performance mods for our cars and exhaust is one option if you want a gain w/ a solid sounding system get the Joe Z.

 

I would have to say F-Sport and then 5Zigen are my favorites. Greddy, Tanabe, Joe Z, and Fujitsubo are not bad as well.

 

Twinloop goodness!

 

Greedy and LMS exhaust