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Old 12-15-2009, 08:11 PM   #7 (permalink)
Master EcoModder
Join Date: Dec 2009
Location: Lancaster Ca
Posts: 362

Tank - '76 Chevy El Camino Classic
90 day: 25.89 mpg (US)

Sabrina - '91 Mercedes Benz 190 E
90 day: 37.07 mpg (US)

Angel - '88 Mercedes-Benz 420SEL
Last 3: 23.01 mpg (US)

Quicksilver - '04 Mercedes-Benz CLK55 AMG Cabrio
Thanks: 52
Thanked 8 Times in 8 Posts
Originally Posted by Daox View Post
Domman, for the same reason a high flow air filter is useless for mileage, so is a performance exhaust. If you are driving for good fuel economy, you are never pushing that much horsepower through your pipes and therefore don't need to reduce restrictions that really aren't there at lower flow rates.

EPA for the car is 18/25. Getting low 30s (in summer) shouldn't be too much of a problem. I find that its fairly easy to get ~30% above highway EPA in any vehicle just by driving sensibly. Definitely check out the 100+ hypermiling tips to get some ideas on driving techniques to use. Chasing down 40 mpg will be a lot harder though. Good luck!
Yes this is true but if the car is NOT EVEN getting 20 MPG as he said when the car is capable of more than that stock that means he's oviously driving it hard > Not neccesarily all the time but everynow and then everyone likes opening the taps a little bit Especially when you're young

Besides these factory Mercedes exhaust are HEAVY Just deleting the resonators and putting an x pipe on my dad's 1986 mercedes 420SEL it saved 30 pounds , the reason i said to do this was purely for the fact of saving weight. Which after a while pays off slowly with gas
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