[Nathan Scott]

Hey guys. Got my first WRX recently. I've already put on a Neochrome muffler delete axel back system from Nameless. Otherwise it's bone stock.
My build plan, and this is pretty much in order, is below:

Perrin short shift adapter (already have the OEM short throw shifter)
Perrin shifter stop
Perrin shifter bushing kit
Nameless mid-pipe (for cat back conversion)
CAI by AEM, ETS, or Perrin (non-oiled; no tune)

Basically, before I decide to pass the point of no return to my lease with an AP and a potential pro tune, can anyone comment on mods (not requiring a tune) that they've done that have clearly increased HP and maybe put you back in your seat a little more? Damn, that was a long-ass sentence! My local tuner, Snail Performance, only works through an AP and they specialize in Cobb and Grimmspeed. Any thoughts will be appreciated!

 

[XJman]

Nothing exists that meets the added power no tune requirement that I am aware of.

Running your car without a tune for that intake is a recipe for disaster. Unless something changes on the fa20f for the 2017 model year I am not aware of your system is still maf based and changes to the incoming air flow without adjusting the maf tables will cause the engine to run lean.

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[cwo1984]

Zero.

Access Port, and a downpipe (jpipe) with a tune will get you started


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[Nathan Scott]

Ok, a tune it is I guess. But do I have to do a CAI intake and a turbo back at once? Right now I just have an axel back system. Am I wasting my time, from a power perspective, if I do a stage one tune with a CAI and get my mid-pipe and j-pipe later (followed by a stage two tune)?

 

[XJman]

You have to have a tune for an intake or exhaust ( referring to down pipe only, cat and turbo backs are fine) period. It's not a matter of power it's a matter of blowing your car up

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[Shook187]

Can the OP explain to me what's the purpose of modding a leased vehicle?

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[JaySin]

The only intake I know of that supports running with no tune is the ETS...and they have posted evidence to support it (they post an actual log). However, I would STILL take that with a grain of salt. Keep in mind, if they don't require a tune for it, it's not really doing anything anyway. It's a noise maker. A great noise maker, but just a noise maker nonetheless. You don't HAVE to do everything all at once. However, just putting in a jpipe/downpipe and getting a stage 2 protune is probably your best bang for the buck...nothing else needed.

 

[cwo1984]

The only intake I know of that supports running with no tune is the ETS...and they have posted evidence to support it (they post an actual log). However, I would STILL take that with a grain of salt. Keep in mind, if they don't require a tune for it, it's not really doing anything anyway. It's a noise maker. A great noise maker, but just a noise maker nonetheless. You don't HAVE to do everything all at once. However, just putting in a jpipe/downpipe and getting a stage 2 protune is probably your best bang for the buck...nothing else needed.

So they say. If OP goes ETS or Mishi, Cobb has stage 1 and 2 OTS to flash


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[zax]

Best bang-for-your-buck mods:
1. Alignment
2. Tires
3. Bushings

1. and 2. will make any car several seconds faster around a circuit and 3. significantly improves driver feel and confidence making the car overall more fun to drive IMO -- care should be taken not to overdo #3... bushings WILL increase NVH.

 

[WRX John]

Best mod to go faster on anything other than in a straight line, has always been to go a high performance driving school.