catback = improved mileage? - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus First Generation > SPI Performance (2000-2004)

SPI Performance (2000-2004) The place to chat about any 2.0L Split Port Injection engine performance, tuning and exhaust related upgrades.

Search This Forum | Image Search | Advanced Search    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 09-15-2008, 08:39 AM   #1
shane_c
Focus Enthusiast
 
Join Date: Feb 2008
Fan#: 53658
Location: Halifax, NS, Canada, Canada
What I Drive: 2004 Light Tundra SE Wagon (SPI)

Posts: 300
FF Reputation: 1 shane_c Good Standing Member
Buy-Sell-Trade Rating: (0)
catback = improved mileage?

I'm looking at the MBRP catback in my quest to improve my gas mileage as much as I can. I realize there will be more urge to get on the throttle if the exhaust sounds better but assuming I don't what sort of mileage increase could be expected?


__________________
2.0L SPI, automatic
shane_c is offline  
    Reply With Quote Quick reply to this message
Old 09-15-2008, 10:04 AM   #2
SkyPilot
Jetsetter
 
SkyPilot's Avatar
 
Join Date: Apr 2005
Fan#: 22350
Location: Rochester, NY
What I Drive: 2004 SE, 2012 Yellow Blaze SE HB

Posts: 6,102
Points 13,550, Level 75
Points: 13,550, Level: 75 Points: 13,550, Level: 75 Points: 13,550, Level: 75
Level Up 75% Completed
Level up: 75% Level up: 75% Level up: 75%
Forum Activity 5%
Activity: 5% Activity: 5% Activity: 5%
FF Reputation: 45 SkyPilot Great Standing Member
Buy-Sell-Trade Rating: (17)
your not going to gain much, it is better flowing of course, but as far as mpg gain, maybe 1-2 and if thats the only reason you want it, you can find a much better way to spend $300 on improving your fuel economy
__________________
ZETEC Crew #26 SR #20 YELLOW BLAZE OWNERS GROUP#4
Moderator Pilot, 2 foci Owner! 04 SE Sedan [P RNDL], 12 SE HB ╠╬╝
Ford Focus Discussions, Ford Focus Marketplace, Ford Focus Tech Discussions, Movies & Music Fanatics, Regional Forums
SkyPilot is offline  
    Reply With Quote Quick reply to this message
Old 09-15-2008, 10:08 AM   #3
Buickboy
br/o/stang
 
Buickboy's Avatar
 
Join Date: Oct 2005
Fan#: 28542
Location: Stratford, CT
What I Drive: 72 Skylark, '12 Mustang

Posts: 5,280
Points 28,082, Level 98
Points: 28,082, Level: 98 Points: 28,082, Level: 98 Points: 28,082, Level: 98
Level Up 74% Completed
Level up: 74% Level up: 74% Level up: 74%
Forum Activity 2%
Activity: 2% Activity: 2% Activity: 2%
FF Reputation: 39 Buickboy Great Standing Member
Buy-Sell-Trade Rating: (29)
youll probably get the same. I got a little worse at first because id give it more gas to hear the sound. Great exhaust though
__________________
==2012 Kona Blue Mustang V6==
==1995 Light Iris Neon Coupe==
==1972 Skylark==
Buickboy is offline  
    Reply With Quote Quick reply to this message
Old 09-15-2008, 10:09 AM   #4
shane_c
Focus Enthusiast
 
Join Date: Feb 2008
Fan#: 53658
Location: Halifax, NS, Canada, Canada
What I Drive: 2004 Light Tundra SE Wagon (SPI)

Posts: 300
FF Reputation: 1 shane_c Good Standing Member
Buy-Sell-Trade Rating: (0)
such as?
__________________
2.0L SPI, automatic
shane_c is offline  
    Reply With Quote Quick reply to this message
Old 09-15-2008, 10:10 AM   #5
shane_c
Focus Enthusiast
 
Join Date: Feb 2008
Fan#: 53658
Location: Halifax, NS, Canada, Canada
What I Drive: 2004 Light Tundra SE Wagon (SPI)

Posts: 300
FF Reputation: 1 shane_c Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by Buickboy View Post
youll probably get the same. I got a little worse at first because id give it more gas to hear the sound. Great exhaust though
I've heard it's not much louder than stock when just driving around normal. Any truth to that or is it loud all the time?
__________________
2.0L SPI, automatic
shane_c is offline  
    Reply With Quote Quick reply to this message
Old 09-15-2008, 12:59 PM   #6
SVT Robzor
Focus Fanatic
 
SVT Robzor's Avatar
 
Join Date: Aug 2005
Fan#: 26230
Location: Cumberland, Maine
What I Drive: 2004 CD Silver SVT

Posts: 1,578
FF Reputation: 5 SVT Robzor Good Standing Member
Buy-Sell-Trade Rating: (5)
Very very little actual gain in efficiency to the engine. If you want a catback exhaust for the noise, do it for that. It'll set you back, what, $400? You'll never make that back in saved fuel economy. If you want to increase your MPGs, exercise good driving manners and self control, and spend the money on keeping your car in a proper state of tune.

You will not, ever, make money by spending money in this way. It's the same logic as taking a $5,000 bath trading down to a car with ~10% better fuel economy - its self deception at best and plain idiocy at worst.
__________________
2004 SVT Focus
Custom front-bumper-mount bug guts; precision sprayed brake dust on OEM rims; 15% Pine Tree pollen over the clear coat.
No more SVT autocross, I drive the thing in the avatar.
SVT Robzor is offline  
    Reply With Quote Quick reply to this message
Old 09-15-2008, 01:25 PM   #7
shane_c
Focus Enthusiast
 
Join Date: Feb 2008
Fan#: 53658
Location: Halifax, NS, Canada, Canada
What I Drive: 2004 Light Tundra SE Wagon (SPI)

Posts: 300
FF Reputation: 1 shane_c Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by SVT Robzor View Post
Very very little actual gain in efficiency to the engine. If you want a catback exhaust for the noise, do it for that. It'll set you back, what, $400? You'll never make that back in saved fuel economy. If you want to increase your MPGs, exercise good driving manners and self control, and spend the money on keeping your car in a proper state of tune.

You will not, ever, make money by spending money in this way. It's the same logic as taking a $5,000 bath trading down to a car with ~10% better fuel economy - its self deception at best and plain idiocy at worst.
If I was to get one I'd probably wait to see if Santa would bring it that way it doesn't cost me anything. But if it really wouldn't save me that much gas I'd look at other things.
__________________
2.0L SPI, automatic
shane_c is offline  
    Reply With Quote Quick reply to this message
Old 09-15-2008, 02:07 PM   #8
dirtbiker348
Focus Addict
 
dirtbiker348's Avatar
 
Join Date: May 2008
Fan#: 56380
Location: West Milford, NJ
What I Drive: 02 CD Silver SVT

Posts: 760
Points 2,603, Level 31
Points: 2,603, Level: 31 Points: 2,603, Level: 31 Points: 2,603, Level: 31
Level Up 2% Completed
Level up: 2% Level up: 2% Level up: 2%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 0 dirtbiker348 Newbie
Buy-Sell-Trade Rating: (4)
You might gain more gas mileage with an intake and throttle body.
dirtbiker348 is offline  
    Reply With Quote Quick reply to this message
Old 09-24-2008, 11:30 PM   #9
FocusPilot
Focus Enthusiast
 
FocusPilot's Avatar
 
Join Date: Aug 2008
Fan#: 58694
Location: Florence, Kentucky
What I Drive: 2003 Silver LX Sedan

Posts: 50
Points 340, Level 6
Points: 340, Level: 6 Points: 340, Level: 6 Points: 340, Level: 6
Level Up 80% Completed
Level up: 80% Level up: 80% Level up: 80%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 27 FocusPilot Great Standing Member
Buy-Sell-Trade Rating: (1)
There are very few mods that will help mpg. The factory squeezes about as much mpg as can be had. Alot of times when you go with a "free flowing exhaust" the scavenging effect is lost and MPG goes down. Only reason to do an exhaust on these cars is if you have a supercharger or you just want it to sound fast.
__________________
2003 Ford Focus Silver Sedan LX SOHC Automatic
1997 Pontiac Supercharged Trans Am WS6
Sedan Revolution #135
cardomain.com/ride/3145658
FocusPilot is offline  
    Reply With Quote Quick reply to this message
Old 09-25-2008, 08:32 PM   #10
phocusphreak
Focus Enthusiast
 
phocusphreak's Avatar
 
Join Date: Jun 2006
Fan#: 36424
Location: Norfolk, VA
What I Drive: R.I.P-01SPI&02SVT;^ 08DRTC & 03 SPI

Posts: 324
FF Reputation: 3 phocusphreak Good Standing Member
Buy-Sell-Trade Rating: (12)
Quote:
Originally Posted by FocusPilot View Post
There are very few mods that will help mpg. The factory squeezes about as much mpg as can be had. Alot of times when you go with a "free flowing exhaust" the scavenging effect is lost and MPG goes down. Only reason to do an exhaust on these cars is if you have a supercharger or you just want it to sound fast.
i'd like to know why having a supercharger has anything to do with it? People buy exhausts sor either sound/style/performance. Not b/c they have a supercharger rofl. So are you saying it's a waste to do full exhaust cause all it does it sound fast?
__________________
Sedan Revolutionary #TwO6TeIgHt
Team DRTC #TwEnTy5
Mods - FS Werks Cool-Flo,CFM Crankshaft pulley/WP Kit, obx header/flex, FS Werks Stealth Flo Muffler with 2.75" straight pipe, & Tom's Tune SCT. FRPP kit & svt front sway coming soon!
phocusphreak is offline  
    Reply With Quote Quick reply to this message
Reply

Bookmarks & Social Networks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum 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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Whats the deal with mileage variation between samples? xFOCIx General Technical Chat 8 06-24-2008 11:22 AM
TRUE gas mileage cruzstyle Ford Focus & General Car Chat 17 06-09-2006 01:14 AM
Improved mileage 05WhiteZX3 DURATEC Performance (2003-2007) 1 05-12-2005 05:49 PM
Improved Gas Mileage brads03zx3 ZETEC Performance (2000-2004) 13 10-13-2004 12:25 AM


All times are GMT -5. The time now is 09:14 PM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Audi S3, Ford Fusion and Acura TLX. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. Challenger Hellcat - Charger Hellcat