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renfield90 · 04-13-2017, 12:32 AM

You won't make even close to all the power you could, due to EL valve timings on an UEL header.

The CEL may kick you to the safe backup tune. This is safe for the engine but gives up a little bit of power because it errs on the rich side. Over the long term, running rich can foul the plugs.

For $160 you can get a Tactrix and upload an OFT tune...be sure you do your research (see threads and posts from steve99).

04-13-2017, 12:32 AM	#29746
renfield90 The Stig's German cousin Join Date: Mar 2013 Drives: 2013 FR-S Location: Tempe, AZ Posts: 1,071 Thanks: 140 Thanked 519 Times in 345 Posts Mentioned: 8 Post(s) Tagged: 2 Thread(s)	You won't make even close to all the power you could, due to EL valve timings on an UEL header. The CEL may kick you to the safe backup tune. This is safe for the engine but gives up a little bit of power because it errs on the rich side. Over the long term, running rich can foul the plugs. For $160 you can get a Tactrix and upload an OFT tune...be sure you do your research (see threads and posts from steve99).