I haven't heard it on a 5.7 yet, but this is a cammed 5.3 with the X muff dumped:
http://video.google.com/videoplay?do...ax+ultra&hl=en
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This is a discussion on dynomax ultraflow x within the Performance forums, part of the General Discussion category; wondering who all have heard or have used these. thinkin of gettin some for my truck and wondering how it ...
wondering who all have heard or have used these. thinkin of gettin some for my truck and wondering how it would sound. i have a 96 vortech 350 with jba headers and no cats.
I haven't heard it on a 5.7 yet, but this is a cammed 5.3 with the X muff dumped:
http://video.google.com/videoplay?do...ax+ultra&hl=en
08 HHR LS - 2.2 | 5 speed | 30 MPG
98 K1500 Z71 - 204k | L31 | 60E | 3.73's | 3" BL | 33x12.5x15 Dick Cepek F-C II's | Dynomax Ultra Flo X DI/DO | 14 MPG
84 S15 Jimmy 2dr 4x4 - engine/tranny all rebuilt
how do dynomax mufflers compare to magnaflow? im thinking of either getting an x pipe with di/do or the dynomax ultraflow x. ive heard great things about magnaflow just havent heard much about dynomax.
I have it on my truck! I love it doesnt sound like that sound clip like I was hoping it would, but I have stock manifolds and cats unlike that guy on performance trucks. The skinny is that it is louder than a flow, probably equal to the magnaflow version of this muffler, and it almost has that bullet rasp but its nice low deep rasp sound NOT ANNOYING only inside resonance I have had was on a highway trip around 2200-2400 rpm doin like 85-90mph real deep and i like hearing it in the cab cause you know everyone else is too. under normal acceleration it has some resonance kinda sounds like a big block and at cruising speed you can barely hear it in OD unless you step on it. OVERALL I LOVE THIS MUFFLER!!! Need to post up a sound clip for you guys I have an 06' ECSB exited 45 behind the wheels 2.5 piping all the way back with 3.5" 18" long stainless tips. It took a little bit of money and convincing to get it put on cause the guy was being lazy but cost $600.00 total I'll try and get some pics of the routing the guy did and some sound!
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