Hi,
Pretty much as the title says, how much does having PPP fitted to the last 2l and 2.5l hawk eye STi's effect the mpg? I know that getting a STi you can't really think about economy but I'm just interested.
Cheers, Toby

 

It might even improve it. Remapping greatly improved mpg on my car before I upped the injectors and turbo. The PPP is a generic map though and not tailored to the individual car. It shouldn't make it worse day to day til you give it some beans!

 

Most people say they get a slight improvement in normal driving, but are more tempted to use the extra power and end up with it being worse.

Mine is worse by about 2mpg even driving carefully .

 

Don't know about PPP, but after a custom remap mines still ****

 

PPP wont make bugger all difference if you drive exactly the same. A custom map should be better ... an in fact if you are thinking of going PPP dont bother just get a custom map instead much better value long term!

 

I know there are better maps etc out there but am worried about warranty issues :-/

 

My 04 STI was better on fuel after a remap by 2/3 miles to the gallon. Jay