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Discussion Starter · #1 ·
Hi, I'm a brand new WRX owner, both me and the car... I did some bolt-ons and the car is shooting flames. Mainly blue flames, but I have had some natural ones too ( meaning orange/yellow). I'm running only 93 pump from shell, I have a cobb shelf tune for 93, but still shooting flames... Is this bad?
 

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If you are not trolling, you are getting fuel into the exhaust so you are likely running rich, a non recirculating blow off valve can cause this. You could also have a burnt up exhaust valve letting air fuel mixture into the exhaust as well.

If you are trolling bravo. You didn't use backfire.

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