I want to see what is the average MPG that everyone is getting with their test pipe installed with either a stage 1 or 2 or no tune at all. This is the results from 4 weeks of driving at different stages of modification.

70% highway 30% local
- With stock cat and Greddy Spectrum Elite catback with no tune I averaged 19.5-20.5 mpg
- With test pipe and Greddy Spectrum Elite catback with no tune I averaged 18.1-18.9 mpg
- With test pipe and Greddy Spectrum Elite catback with AP HKS panel/Stage 2 93 Oct map I got 16.5-17.2 mpg

My current mods are K&N Panel filter, Greddy SE exhaust, Ichiba Test Pipe, Cobb AP Stage 2 map (HKS panel 93 Oct), 245/40/R18 Michelin Pilot Sport A/S Plus tires on stock rims. Am I supposed to get that bad of a mileage with a test pipe, tune, and exhaust? Please leave a comment about what tune you have if you do have and your mods to support your claim.

 

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