Quote:
Originally Posted by Ultramaroon
I love the sound of the quiet catback. I wonder what it would sound like with my lg90.
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Quote:
Originally Posted by gen3v8
I prefer the quiet side also. Invidia Q300 cat back. It`s so quiet now.
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I have had the Q300 and CSGxMXP catbacks in a shopping cart more than once. If I knew they would flow 400-500whp without a lot of backpressure, I'd probably get whichever is quieter. I actually find it unbelievable that car with poly engine mounts, diff mounts, and an upgraded transmission mount is so quiet on the interior. The Ace catback doesn't seem to be on their site anymore

If it's the one with the center exit, I'm not a big fan of the look though
I wonder if @
CSG Mike can assure me one of these would support 450whp..