Is a cat-back exhaust ok??? - Suzuki Forums: Suzuki Forum Site
Suzuki Forum Suzuki Forums

» Auto Insurance
» Featured Product
Wheel & Tire Center

Go Back   Suzuki Forums: Suzuki Forum Site > Suzuki Models > Other Suzuki Models > Suzuki SX4 Forum
Register Home Forum Active Topics Photo Gallery Garage Search Today's Posts Mark Forums Read Auto EscrowAuto LoansInsurance Advertise

Suzuki-Forums.com is the premier Suzuki All Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 08-28-2009, 07:56 AM   #1 (permalink)
 
Join Date: Sep 2008
Posts: 7
Gallery: 0
jerm11916 is on a distinguished road
Default Is a cat-back exhaust ok???

I am wanting to put a cat-back exhaust on my '08 SX4 Sport. But since there are no kitsw to fit I was going to have one made and end it with a Megan Racing Muffler. The problem is I keep being told be one of my co-workers, that it will ruin the engine and my check engine light wil stay on, which really wont bother me, but am concerned about ruining the engine...

His logic behind it is the second cat. and resonator NEED to be on there to create enough back pressure for the engine. Can anyone give me some insight or input about this please

Thanks,
jERM
jerm11916 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 08-28-2009, 08:31 AM   #2 (permalink)
Member
 
Join Date: Mar 2008
Location: Tampa Bay Florida
Posts: 98
Gallery: 0
CARMAN3756 is on a distinguished road
Default

A catback exhaust usually wont cause a check engine light, but if you take the cat out than to much..... gas fumes?.... gets to the O2 sensor and causes a CEL. Some people use a spark plug non fouler to get the O2 sensor out of the direct path of the exhaust gases but that works for some people and not for others it kinda depends on the car. Bottom line a cat back shouldnt cause a CEL but a header back exhaust most likely will.
CARMAN3756 is offline   Reply With Quote Quick reply to this message
Old 08-29-2009, 10:53 AM   #3 (permalink)
 
Join Date: Sep 2008
Posts: 7
Gallery: 0
jerm11916 is on a distinguished road
Default

Thank you for the input on the dash light but I can live with that (black tape works wonders). But Im just concerned with ruining the engine. Will it ruin taking the second cat. and resonator off or not. The O2 sensors are before and after the first cat. and nothing is around the second or the resonator.
jerm11916 is offline   Reply With Quote Quick reply to this message
 
Old 09-09-2009, 08:07 AM   #4 (permalink)
Newbie
 
kb1oju's Avatar
 
Join Date: Sep 2009
Posts: 11
Gallery: 0
kb1oju is on a distinguished road
Default

Quote:
Originally Posted by jerm11916 View Post
I am wanting to put a cat-back exhaust on my '08 SX4 Sport. But since there are no kitsw to fit I was going to have one made and end it with a Megan Racing Muffler. The problem is I keep being told be one of my co-workers, that it will ruin the engine and my check engine light wil stay on, which really wont bother me, but am concerned about ruining the engine...

His logic behind it is the second cat. and resonator NEED to be on there to create enough back pressure for the engine. Can anyone give me some insight or input about this please

Thanks,
jERM
#1, your co-worker is wrong, it will not ruin your engine at all.

#2, your CEL will not go on at all unless a sensor has been fudged with at all, but no sensors even get touched in the process

#3 do it you will not regret it, it will help pep up the engine even more
__________________

Mods So Far:

RRM SRI
RRM Headers
RRM Piggyback ECU
RRM Sway Bars (Front AND Rear)
RRM Underdrive Pulley
H&R Springs
Natami Racing Harness's
Straight Piped

Mods to come? Bride Seats
kb1oju is offline   Reply With Quote Quick reply to this message
Old 09-09-2009, 01:44 PM   #5 (permalink)
 
Join Date: Sep 2008
Posts: 7
Gallery: 0
jerm11916 is on a distinguished road
Default

Thanks so much!!!
jerm11916 is offline   Reply With Quote Quick reply to this message
Old 09-13-2009, 05:08 PM   #6 (permalink)
 
Join Date: Apr 2008
Posts: 18
Gallery: 0
Glowmunkey is on a distinguished road
Default

Quote:
Originally Posted by CARMAN3756 View Post
A catback exhaust usually wont cause a check engine light, but if you take the cat out than to much..... gas fumes?.... gets to the O2 sensor and causes a CEL. Some people use a spark plug non fouler to get the O2 sensor out of the direct path of the exhaust gases but that works for some people and not for others it kinda depends on the car. Bottom line a cat back shouldnt cause a CEL but a header back exhaust most likely will.

I've had anti-foulers work on LOTS of different cars - if one doesn't work, use two. Never had two fail me.
Glowmunkey is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

  Suzuki Forums: Suzuki Forum Site > Suzuki Models > Other Suzuki Models > Suzuki SX4 Forum

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Suzuki Forums: Suzuki Forum Site forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Insurance
Please select your insurance company (Optional)

Log-in



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

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 06:29 PM.



Powered by vBulletin® Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.