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Financially worth the increased MPG with exhaust/intake?

2057 Views 8 Replies 7 Participants Last post by  scj
Considering getting the magnaflow and intake simply for MPG purposes (I usually drive like an old woman unless I'm merging) so extra HP really won't benefit me.

I whipped up a spreadsheet that lets you play with your own MPG range, a projected increase in MPG and cost of gas to allow you to figure out how much you're going to pay for gas over the next 30k miles with and without mods.

I'm looking for specific input from owners of these mods. How much MPG increase did you see from each? For the owners of both, how about you? What is your driving style? I'd like to save money on gas if I can, so presuming I'm going to be driving this for a while, it would be nice to know if the long-term savings are worth it.


Also, as always, run a virus scan on any downloads if you're unsure of what may be in them. If you don't want to download it, DON'T! It's as simple as that. You don't need to play with the spreadsheet to benefit from this thread. :)
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Interesting... so I still haven't figured out if adding a performance intake/exhaust has the potential to increase MPG. I went from a 99 corolla to an '07 Nitro :D :D :D

BUT - MPG went from like 31 to 18.

It didn't matter how I drove the 5-speed Corolla. I got ~31 mixed MPG. The Nitro however it really matters how I drive it. I MIGHT be able to get 22 MPG with very conservative driving. Now, if I do decide to add a performance intake/exhaust with conservative driving may I see an increase in MPG? Even if it's 2+ MPG it would be worth it to me.
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