Hello. I just bought evo x sst. Now I have Invidia exhaust system and BMC air filter.
I want a fast car for everyday. and of course bang bang on shifting and gas pedal reduce.
What parts I have to buy for maximum power and stock car parts?

 

all bolt on's (intake, I/C piping, Intercooler, test pipe back, maybe a downpipe) and tune. I'm not sure of the limitations of the SST trans, but I'm sure someone can chime in on here.

Deciding what fuel set up you want (just pump or pump/E85) and then which tuning system is something to consider in all that.

 

You should have NO BANG BANG shifting going on. None. How many miles on the car? Has the fluid been changed in the transmission? Contact wtftuned.com or another reputable tuner to see what is going on with the car and get it running properly.

Bang bang + sst = bad