Fast Intentions 18" Resonated - Deep, refined and smooth. No drone
Motordyne Shockwave - Exotic, more rumble/burble. Drone
GT Haus axle-back - Decent noise increase. No drone
AAM short tails - Slightly louder than GT Haus. Slight drone
Top Speed axle back - Slight noise increase over stock. No drone
Axle-back parts have pretty similar sound characteristics between each other since you're changing a small section of piping that essentially just controls volume. As for a full cat-back, low-end changes will hardly be noticeable if at all unless you get something >2.5" piping (don't). You can also disconnect your battery during install to reset the ECU and help it learn the change quicker.
__________________
AAM | Dynosty | Ecutek | Eibach | Hawk | H&R | Nismo | Stillen | Stoptech | Z1
|