Originally Posted by 4.8isX5

I have an '11 35i.

Not really expensive to do all of this especially if labor is cheap and it transforms the car, i have the following done on mine-

-VRSF downpipe
-VRSF Chargepipe
-Mhd Stage 2+ tune
-XHP Stage 3 transmission tune

Obviously before doing this you should be caught up on maint items-

-air filter
-oil every 3-4k ( i change this way in mine, plus FCP oil changes essentially cost $15 for shipping to return old oil )
-Spark plugs
-All ignition coils (delphi)
-Oil filter housing/cooler gaskets
-Valvecover if needed
-HPFP (if you have longer cranks its probably this, crank should be mostly instant/1sec)

I would get plugs and coils from FCP, free lifetime replacement all you really pay for is return shipping which is beans. Plugs will go quicker maybe every 20-30k with tune.

Even stage 1 or stage 1+, id recommend doing the trans tune. Increasing line pressures and such causes the clutches to do what they are supposed to and avoid microslipping. MHD and XHP also worked together on this option, so if you flash MHD stage 1 to mess around but later do the XHP trans tune, select the "tuned automatic" forgetting exact name in the MHD app, and reflash- takes under 2 min if you already did the initial flash.

Runs great, no complaints.