- Location
- Boston, MA
Had this on the .org.. Wanted to post it here as well..
We get the question every day.. What cai, what mod etc.. Well here's a little compilation of what I felt on each mod:
1) Stillen CAI with Z-tube:
- The sound definitely increased and became more beautiful but I felt like the sound at higher rpms were more vibrating plastic than engine.. Gotta tighten the clamps good..
2) MD 5/16 plenum:
- The mid range starting from 3500-4000 opened up really good. The sound was a little deeper as well but I loved the mid range. Couldn't keep holding the FX at 3000 and kick it down all the time View attachment 153249
3) Stillen Headers:
- The change in sound was simply WOW! It got significantly deeper and especially the sound after 3500 became like a race engine.. You can also hear the gases flowing when you go WOT when it's cold.
- This one opened up 3500-4000 pretty good as well. I felt it doubled the effect of the plenum spacer
- Stillen has one "blip" at about 4200-4500. The revs go up and down in milliseconds and it might annoy you if you are very much into details. I am but the performance overcame that..
4) Kakumei Y-pipe
- I didn't feel anything significant with this one. The revs felt a little freer but it was so small that it was negligible. The sound got a little deeper and the source moved from the intake to a bit more from the mid-exhaust..
5) APS Y-back Dual 2.5" exhaust
- The sound got incredibly deeper thanks to the mufflers. The sound at low range is a lower frequency (deeper) rumble and at the high range it just screams like a GT car.
- The engine started revving much faster, especially after 4000. It just slams you in the seat. It feels exactly like it was before at the low range though. This basically means, IMO, that there's not much hp/torque gain between 2000-4000. If you go with a smaller dimension pipe, you'll gain some at that range but lose at the top a bit.
6) +2 Timing Advance
- Now this was almost the best of all. The throttle feels much more responsive and you can feel the additional power. If you don't worry much about the lost mpg and using higher octane gas, do it!
I will be doing Berk Hi-Flow cats and possibly a stock sized crank pulley as well. Will update the thread then.. In the mean time, any feedback is welcome..
-Ege-
We get the question every day.. What cai, what mod etc.. Well here's a little compilation of what I felt on each mod:
1) Stillen CAI with Z-tube:
- The sound definitely increased and became more beautiful but I felt like the sound at higher rpms were more vibrating plastic than engine.. Gotta tighten the clamps good..
2) MD 5/16 plenum:
- The mid range starting from 3500-4000 opened up really good. The sound was a little deeper as well but I loved the mid range. Couldn't keep holding the FX at 3000 and kick it down all the time View attachment 153249
3) Stillen Headers:
- The change in sound was simply WOW! It got significantly deeper and especially the sound after 3500 became like a race engine.. You can also hear the gases flowing when you go WOT when it's cold.
- This one opened up 3500-4000 pretty good as well. I felt it doubled the effect of the plenum spacer
- Stillen has one "blip" at about 4200-4500. The revs go up and down in milliseconds and it might annoy you if you are very much into details. I am but the performance overcame that..
4) Kakumei Y-pipe
- I didn't feel anything significant with this one. The revs felt a little freer but it was so small that it was negligible. The sound got a little deeper and the source moved from the intake to a bit more from the mid-exhaust..
5) APS Y-back Dual 2.5" exhaust
- The sound got incredibly deeper thanks to the mufflers. The sound at low range is a lower frequency (deeper) rumble and at the high range it just screams like a GT car.
- The engine started revving much faster, especially after 4000. It just slams you in the seat. It feels exactly like it was before at the low range though. This basically means, IMO, that there's not much hp/torque gain between 2000-4000. If you go with a smaller dimension pipe, you'll gain some at that range but lose at the top a bit.
6) +2 Timing Advance
- Now this was almost the best of all. The throttle feels much more responsive and you can feel the additional power. If you don't worry much about the lost mpg and using higher octane gas, do it!
I will be doing Berk Hi-Flow cats and possibly a stock sized crank pulley as well. Will update the thread then.. In the mean time, any feedback is welcome..
-Ege-


