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Discussion Starter #1
Ever since i got the lunchbox delete done it seems like there is less power down low, it could be me though. The new pipe is 2.5" so maybe thats why. Could that make it run lean or worse?
 

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You reduced back-pressure in your exhaust system without tuning to compensate. There will be less power at lower RPM.

My advice would be to reset the ECU by disconnecting the battery for a while, make sure your air filter is clean, clean the MAF, clean the throttle body, make sure your spark plugs are in good shape and gapped correctly.
 

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Recently had my lunchbox removed and the car feels fine. Was it just the lunchbox removed and the rest of the exhaust is stock?
 

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Discussion Starter #6
Yea just the lunchbox removed, and now a 2.5" pipe in its place. I plan on buying the fswerks street exhaust soon though.

And i recently changed the spark plugs and RMM (Old one was shot) that made the car feel a lot better. Factory plugs were in terrible shape.
 
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