Intake, Header, HFC, CBE = Too Lean?

chris410

It would be nice to compile a list of mods and get numbers on what does and does not require a tune. I will start a list so if anyone can provide data it would be helpful.

1. CAI - ie stillen etc with stock exhaust/headers/cats

2. CAI + CBE

3. CAI + HFC + CBE

3.5 K&N Drop-Ins + HFC + CBE (Tune needed? Any dyno A/F numbers?)

4. CAI + Headers + HFC + CBE (according to this thread a tune is needed)

5. CAI + Headers + CBE

I am looking at a combination of K&N Drop ins with HFC + CBE and I do not know 100% whether or not I need a tune so once I install the HFCs I will get the dyno done and post up the A/F numbers. I am not 100% sure when I'll order the HFC, I am thinking March/April timeframe but if anyone can provide data for any of the above I'm sure it will be very helpful. The dyno numbers would be nice but what I think is most important are the A/F numbers. Better to get those sorted out before tuning for power.

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Chris
Current: 2014 WRX Stage I + SPT / 2013 Hayabusa 202HP
Former:09 370Z 7-AT PW/Ark Type 2 exhaust/Evo R lip/TSW Nurburgring carbon