I drive a slightly modded RSX-S, but im asking this for my buddy who got the 07 RS3 TC. He already has :

TRD Intake
TRD Exhaust (Axle Back)
Custom Mid-pipe
Monster Motorworks Header/S-pipe
TRD Sways
TRD Lowering Springs
TRD Short Shifter
NST Crank Pulley

Question is, what else could he do to his motor with out going F/I and not opening up the tranny? I know the Greddy Emanage probably wouldnt be worth it. Thanks guys!

 

nope, that is pretty much every bolt-on you can get.

all that is left is the supercharger, then clutch, flywheel, lsd, better tires and brakes etc.

 

he can have his motor port and polished and have the head built...otherwise, f/i is the way to go if he wants more power

 

why not do the NST lite weight water pump and alternator pulley, also you can try doing the spark plugs and spark plug wires and installing camcon controller. how come i didn't see strut bar in the list?

 

Camcon and dyno tune.
Energy suspension motor mount and suspension bushings.
Eliminate balance shafts.

 

are those motor mounts better than engine damper?

 

engine management and a tune

 

I had both on the car and have since gotten rid of the ETD.