Which exhaust system is the best one?

evse82

Yeah thats the thread that scared me lol... I'm gonna try them out anyways, Semtex, when he just had those two, said there wasn't any drone and at cruising, it was very quiet so I guess what might seem too loud for some might be quiet for others (all depends on preferance and possibly age... lol).

I want mine to make a noise throughout the range but be quiet when I'm not revving, both of these exhausts on their own will be relatively fine, however the stillen is quieter (this is and isn't a good thing for some). From the videos and bezzitas car, the fi's have a deeper tone, but keep in mind the car had high flow cats too (the stillen with cats give a deeper tone aswell). Actually GTRFAN went for a drive in the car I didnt speak to him about it but he could give some insight on the FI stuff (the car has FI cat back and FI hfc's)

Darren?

as for the stillen I have only heard it on videos, so I cant say if it'll be overly loud with the cats, it is difficult to tell because cameras can either add or remove noise......

Possibly this Friday I may be able to let you guys know if I can get mine booked in that is....

End of the day you'll be happy with either. If you want a visible exhaust go the FI if you want it more stealth go the Stillen. Stillen/berk hfc combo give good gains, not sure about the FI stuff with gains though, Any QLD guys who have installed them here? maybe post the gains below (there is another thread on this I know :P)

I think (dont hold me to this) semtex and another member got 28rwkw and 27rwkw respectively with the stillen cat back and berk hfc's

FI guys post below haha

racerxj17

with HFC, the FI has much more drone in the cabin. i do think is sounds better, but, it is louder in the cab on the freeway, with the outside noise level very similar to the stillen.

__________________
2009 PW Sport/Touring/Nav M6
Stillen Gen 3 Intake/CBE/Berk HFC/BC BR Coil over/Phillips 6500k/Hotchkis Sways/Stillen oil cooler/B&M SS

evse82

So you have the stillen cat back and berk hfc? do you get any drone at all in the cabin revving or while cruising?

GTRFAN

Bezzitas car has an awesome sound inside without being too droney or being irritating. Having said that, it was quite loud though, especially with the SRM downchanges, but it's sounds so good.

I really liked the setup but I think for me personally I will go with a slightly quieter system like the Stillen. I think I will go exactly the same as what you're (Evan) talking about. Stillen CBE - Berk - Stillen long tube intakes. (Or see what the Jap tuning houses like HKS bring out)

I would be ready to mod my car now, but I am just about to install $5k worth or air conditioning at my house which will eat away my mod budget, so I'll have to wait a bit.

__________________
My Zed

evse82

Well, when you are ready to get more stuff, i'll probably get the stillen instakes too

MrBMW

Hey all, sorry for no reply as of yet but have been at work the last two days and shift work dosnt really allow much time to post, plus i hadnt notice this thread. Well my link -> SEE HERE has a few vids in it (adding photos tonight). NONE of the videos of any of the exhausts do them justice.

I went with the Fast Intentions RTP's, CBE and CF uffler (Sale Thread) based on the videos i had heard. The Stillens sounded great also, but my ears at least thought the F.I. was that bit deeper and the sound that comes from them at High RPM is just great. Now from the videos to what i actually hear is different. The difference being is that it is much LOUDER than it appears in the videos.

Others that have done either the F.I. or Stillen setup have said the same. I was surprised at first at the Volume of it, but Tony (F.I.) did advise me first that it will be loud also. Unfortunately with not many in Aus having either it will be hard to hear them in real life. Price wise they are very similar, but the F.I. having a few more options available. Customer service and Build Quality i beilive after reading a lot of the threads here and other forums, i would in favour of F.I..

Lastly and in 2nd place for myself (sound being #1) is the Power Increase. I did get the car Dynoed when i did the exhaust install (u can see basline in my thread). After the exhaust install it did have nice gain, with ATLEAST 10hpatw from 2000rpm. I havnt posted the total figure yet or dyno sheet, as i want o let the ECU "Learn" first. Will be going back on Monday for check up and dyno. There was a 20hpatw+ gain though.

__________________
My New Car Album. Stillen Gen III Intake Installed, F.I. RTP's Cat Back INSTALLED