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Old 05-31-2019, 10:25 AM   #4631
Scooby Newbie
Member#: 490876
Join Date: Aug 2018
Chapter/Region: NWIC
2016 STI
Ice Silver Metallic


Originally Posted by YungBoba View Post
Q300 is definitely quieter than the Cobb. Q300 is probably the quietest aftermarket catback you can get. The Cobb and Grimmspeed would be a step above it in terms of loudness.

I am of course referring to the regular dual-piped, quad-tipped exhaust. I can't comment on the single-exit Q300.
I ended up buying a low miles used Cobb SS catback. For me it is perfect. Not too loud or quiet. I have the Cobb catted downpipe installed on my STi, too. Before getting the Cobb CBE I installed the stock catback. It is very quiet, actually too quiet. If I have the radio volume turned up I had to use the tach to know when to shift. I also had a used Q300 quad tip. The Cobb CBE is generally quieter than the Q300 I had, especially at cold start and 2500-3500 cruising up hills on the highway. The Q300 was used, so the baffles may have already been blown. Both Cobb and Q300 are a lot quieter than the AWE Touring. The AWE Touring is quite loud, but has a very cool unique exotic note and also pops and crackles on downshifts. I would still be running the AWE if I were younger when volume did not bother me.
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