what are the advantages of a 2.5" in comparison to a 3" cat back? I have a stage 1 hrc and will be intercooled and running 8psi in the near future...would 3" be too much? i searched for some exhaust info but wasnt able to find much on this...thanks much

a 3" would be just right, from the things I've heard.

It depends on what you are running. I have been looking into this for a while and the vast majority of the responses I've seen are that a 2.5 is more than enough. You don't need a 3" unless you plan on making insane HP.

97 Eclipse GS

OBX type H Cat-Back
Maxspeed Short Ram intake
Pacesetter header
Neuspeed Springs 1.5 inch drop
Progress Tech camber kit
16" Konig Monsoons
Coming soon (HRC Stage I)


Honda, taking the "R" out of "shirt".

97 Eclipse GS (SOLD)
91 Galant VR4 on the way


Honda, taking the "R" out of "shirt".

with a turbo system the bigger the exhaust the better. most people talk about back pressure and you can have too big of a pipe but that is with n/a engines. the exhaust turbine on the turbo makes all the back pressure you need and then some so a 3" is the best way to go. more power, shorter spool up. until you get in the you get to the upper hp levels you dont have to have it, but then again you dont need a turbo on there either, do you. 3" will make a power difference.
-Josh





weapon-r intake
greddy headers
apex-i n1 catback
afx udp
energy suspension
motor mounts
cf altezza tail lights
bored t/b
magnecore wires
hotter plugs

15.882@86.27

ok here we go again.
2.5" is good for up to 300 hp if you are planning on making more than than then go ahead and get a 3" pipe.

-97 GS (First project, 299 whp)(sold)
- 97 RS 2.6 last numbers: 306hp, 352tq @16psi (Dead, parted out)
- 99 GS OZ, Hahn Kit, 56k miles (Sold)
--------
- 00 Nissan Maxima GLE (Daily Driver)
- 02 Audi A4 1.8T Quattro

is the GReddy evolution cat back 3"? if so, whats a good 2.5" exhaust to get for an NA car?

'98 Eclipse GS - The slow screamer.

Mods? If God wanted us to mod cars, he would make aftermarket companies. Oh wait... yeah i better get to work on that.

I'm getting the Greddy Evo Exhaust for my 98 Eclipse Spyder GS. I got the Non-Turbo Version. Fits all 96-99 Eclipse GS/RS The piping is 60mm (2.5" approx) The Turbo version is a 80mm (3" piping approx).

Later,
Mike
98 Eclipse Spyder GS

Mike
98 Eclipse Spyder

how does the apexi N1 look on our cars?? people say it hangs really low even on stock height...does anyone have a picture of it on a 2g?

from what i've heard. if your under 300hp there will be no difference in the two pipes. n1's are big. i'm looking at an apexi N1 muff right now. inlet is huge and tip is huger. it's kinda gawdy lookin. i'm gonna look for the non turbo one cause it's smaller in the tip department.

http://www.ocaddict.com

thanks beefgg for the sig

I have posted it many times but here it is again....

Pace setter cat back(2.5")..$160
Hayame muffler..............$199
Look and Performance of it..PRICELESS

I also have a straight pipe on there too.

Dave
05 Ford F150 SuperCrew FX4

here is some shots of mine. never rally had a problem with draging. every onece in a while if i go over a speed-bump too fast it will drag, but no damage.
-Josh








weapon-r intake
greddy headers
apex-i n1 catback
afx udp
energy suspension
motor mounts
cf altezza tail lights
bored t/b
magnecore wires
hotter plugs

15.882@86.27

dave...where did you get the pacesetter catback?? i have a hayame muffler on my car now and would love to keep it if i can just run the pacesetter piping...do they have 3"??

I went and measured my Apex N1 catback. The canister at its lowest point was 4.5" off the ground. I will get some shots of it. I think it's awesome.

- No Purchase Neccesary. Details Inside.

btw I was at stock height when I measured it.

- No Purchase Neccesary. Details Inside.