It was suggested by some in this forum to look into a catback system to improve MPG's. How's this system? http://cgi.ebay.com/ebaymotors...le:us

 

It may improve it a bit but chances are your right foot will cancel that out.

 

The only REAL way to improve your gas mileage is to reduce how much air/ fuel is going into your engine. I find it hard to believe that a catback would improve your gas mileage significantly, but maybe 2-3 mpg. But i doubt that.

 

If you simply want to improve mileage for economy's sake, this isn't really the way to do it. Consider this:

The cost of the exhaust is $275, and let's assume that you gain an average of 2 MPG from it. Lets also assume that you drive 12,000 miles per year and currently achieve 30 MPG.

12,000 miles per year/30 MPG = 400 gallons of fuel annually (before cat-back)
12,000 miles per year/32 MPG = 375 gallons of fuel annually (after cat-back)

25 gallons of fuel x $2.75 per gallon works out to a savings of $68.75 per year. It would therefore take you 4 years before simply breaking-even on the cost of the exhaust.

 

what he said

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Padawan &raquo;</TD></TR><TR><TD CLASS="quote">If you simply want to improve mileage for economy's sake, this isn't really the way to do it. Consider this:

The cost of the exhaust is $275, and let's assume that you gain an average of 2 MPG from it. Lets also assume that you drive 12,000 miles per year and currently achieve 30 MPG.

12,000 miles per year/30 MPG = 400 gallons of fuel annually (before cat-back)
12,000 miles per year/32 MPG = 375 gallons of fuel annually (after cat-back)

25 gallons of fuel x $2.75 per gallon works out to a savings of $68.75 per year. It would therefore take you 4 years before simply breaking-even on the cost of the exhaust. </TD></TR></TABLE>

get it anyway they sound cool

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bulli Kid &raquo;</TD></TR><TR><TD CLASS="quote"> get it anyway they sound cool </TD></TR></TABLE>
Lmao, not to mention the 2 HP you get too!

 

that cheap exhaust will make your car sound like ****

 

With bigger exhaust piping you usually get worst gas mileage. I bought my exhaust once off ebay. It looked nice & sounded pretty damn good but you have to be careful still. Sometimes they don't fit just right. the welds are shitty alot of times & you get leaks. The flanges don't seal correct. Just be careful. You can always get an exhaust made to. There cheap. Tubing is cheap & labor to someone that knows isn't bad. Buy a universal fart can, then get the piping done. If you go crush bends (ok, but mandel is best but pricy) you'll still gain some hp's & sound for cheap.

 

Also be careful w/ cali laws. DB law is 94.5 or 95 I think. I know mine was 93 & just passed. @ one time I had a 115db exhaust. That was fun trying to get that passed the fuzz.

 

Dont buy it! Instead invest your money into regular maitanance if you want to get better MPG. Tune ups,air filters, oil changes,tire pressure, etc...