Purchased 2002 WRX 2 month ago.
Exhaust Helix turboback exhaust(no tune)
BOV: Turbosmart 2 port
Suspension Tein S tech springs and KYB shocks.
Engine with 3500 miles on it, Tranny 3500 Miles on it.
I'm in the High Rockies area - altitude from 6000 to 12000.
Overall i'm happy with car, but recently i start driving 170 Miles daily trips, and exhaust noise just killing me.
1) How to make car quite for low cost, closer to stock sound ?
2) And another thing is anytime that i downshift or let go gas pedal it will shot sound(i gues it is running rich).
3) Do i need BOV at all ?
4) Do i need to have tune done ?
I did forum search, just looking for opinion. And maybe some help from Denver people.
Car pictures attached.
Thank's for looking.