-1 dynomax

Rawyzf · September 2, 2015

I kept mine because the setup makes it easier to swap mufflers without welding. 2 mufflers welded into the stock catback = the cost of the dynomax, so you might as well keep and swap in a muffler. See if they'll send you a powerflo since it doesn't have the valve and thus wont rattle.

Back in a Bowtie · September 2, 2015

worth a shot, try to get something out of them. I am going to try a "screw" method i found online. Basically run a decking screw in through the bottom to prevent the valve from making contact with the pipe. Who knows maybe it'll work.

Rawyzf · September 2, 2015

worth a shot, try to get something out of them. I am going to try a "screw" method i found online. Basically run a decking screw in through the bottom to prevent the valve from making contact with the pipe. Who knows maybe it'll work.

Hadn't heard of that method, interesting find.

Back in a Bowtie · September 2, 2015

yea apparently the guys with big lopey cams have issues with them rattling so it was something one guy figured out.

RobZ71LM7 · September 2, 2015

Keep it as said above. If you can't get the VT to work just swap in a different muffler, which is what I did. Mine never rattled, although it might now that I beat it off with a ball peen hammer.

Back in a Bowtie · September 2, 2015

Keep it as said above. If you can't get the VT to work just swap in a different muffler, which is what I did. Mine never rattled, although it might now that I beat it off with a ball peen hammer.

how are you liking the magnaflow? that might be the next move, my old flowmaster froned like a biatch on my tb. Sounded great at WOT though

Rawyzf · September 2, 2015

I had a magnaflow 11229 on the Saab 9-7x 6.0, and I didn't like how it had a strange drone. I think it had to do with it being an SUV. I changed that out to Corsa, and that was amazing.

I'd like Corsa on this truck some day, but don't want to spend that $ yet, gotta wait for the price to come down or find a used one . For now though, I am happy with the FlowMaster Super 40. Sounds great WOT, and very little drone (mostly in 5th right before if shifts to 6th (so 50mph range maybe?)).

Back in a Bowtie · September 2, 2015

might have to trust you lol.... im weary with how annoying my past experience was

Rawyzf · September 2, 2015

LOL, we all know sound is subjective though! I ran full Kooks system that was catless on the G8, and I loved the sound (I'll admit it had some drone), but I loved every minute of it and the lovely smell.

RobZ71LM7 · September 2, 2015

My Magnaflow is the model 12589 which is a 22" long body with a 5x11 case so it's pretty quiet-only a little louder than stock and virtually no drone. I swapped it on in order to compensate for the added noise of headers. I'm hoping it's louder but not too outrageous with headers. If it is I'm going to add a 6" round Magnaflow 14159 race muffler upstream of the big muffler to act as a resonator.