Mazda3/Mazdaspeed3 Engine/Drivetrain Modification Discussions for the Mazda3 and MazdaSpeed3

CAI vs Cat back exhaust

Thread Tools
 
Search this Thread
 
Old August-14th-2007, 01:34 PM
  #1  
Registered User
Thread Starter
 
shep61487's Avatar
 
Join Date: Aug 2007
Location: Boston, MA
Posts: 23
shep61487 is on a distinguished road
CAI vs Cat back exhaust

Hey guys, I want to upgrade from stock, can only afford one or the other, which would give me the better gain for the money? and Which would be easier to install? Considering either Borla cat back or K&N CAI. . .
shep61487 is offline  
Old August-14th-2007, 01:39 PM
  #2  
Registered User
 
J-Protege's Avatar
 
Join Date: Feb 2006
Location: Edmonton, Canada
Posts: 1,332
J-Protege is on a distinguished road
A CAI would be much easier to install, it's just less parts, less rusty bolts to fight with, etc.

As for gains, the catback would be closer to 4-5 hp, where the CAI is more like 2-4, so it's really just a personal preference.

The exhaust is more work, but at least you get looks with it.
J-Protege is offline  
Old August-14th-2007, 02:41 PM
  #3  
Registered User
 
dentinger's Avatar
 
Join Date: Oct 2006
Location: burlington, ON....it's west of Toronto
Posts: 535
dentinger is on a distinguished road
lets see......
both the exhaust and intake will increase ur gas mileage.
they both sound nice.

the intake is cheaper tho, and easily installed in ur driveway.
the exhaust sounds nicer tho....
dentinger is offline  
Old August-14th-2007, 03:10 PM
  #4  
Spam Czar!!
 
KrayzieFox's Avatar
 
Join Date: Aug 2004
Location: Cedar Falls, Iowa
Posts: 2,315
KrayzieFox is on a distinguished road
I vote for exhaust first.

CAI is easier to install, but I say a nice exhaust is a better beginner mod than an intake.
KrayzieFox is offline  
Old August-15th-2007, 07:19 AM
  #5  
Registered User
 
J-Protege's Avatar
 
Join Date: Feb 2006
Location: Edmonton, Canada
Posts: 1,332
J-Protege is on a distinguished road
Just remember that they work well as a combo, letting the car breathe better. Couldn't hurt to plan both mods.
J-Protege is offline  
Old August-15th-2007, 08:57 AM
  #6  
Registered User
Thread Starter
 
shep61487's Avatar
 
Join Date: Aug 2007
Location: Boston, MA
Posts: 23
shep61487 is on a distinguished road
Now, if I got the exhaust, what precautions would I have to take when dealing with the PZEV junk? and what kind of equipment would I need to install it?

Also, would you guys recommmend the Borla and K&N? or are there better brands?
shep61487 is offline  
Old August-15th-2007, 09:39 AM
  #7  
Tech/How-To/Northeast Mod
 
_Kansei_'s Avatar
 
Join Date: Feb 2006
Location: Rochester, New York
Posts: 2,517
_Kansei_ is on a distinguished road
Aren't catbacks illegal in MA? I know they (along with CT) were pushing those laws through
_Kansei_ is offline  
Old August-15th-2007, 11:03 AM
  #8  
Registered User
Thread Starter
 
shep61487's Avatar
 
Join Date: Aug 2007
Location: Boston, MA
Posts: 23
shep61487 is on a distinguished road
nope, we shut the bill down,

here's the link to the article

http://www.semasan.com/images/df1006_final.pdf
shep61487 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jamesski
Mazda3/Mazdaspeed3
3
August-25th-2012 01:48 AM
deathuntofoes
3rd gen Engine/Drivetrain
7
July-6th-2003 08:31 AM
toadmaster986
3rd gen Engine/Drivetrain
6
August-20th-2002 07:18 AM
Brycer79
3rd gen Engine/Drivetrain
0
July-19th-2002 02:04 PM
20FS
3rd gen Engine/Drivetrain
9
June-4th-2002 12:07 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: CAI vs Cat back exhaust



All times are GMT -5. The time now is 03:13 PM.