Yella Fella Posted September 2, 2012 Share Posted September 2, 2012 Guys, For those that have hfc or decats installed, I've noticed that the OEM brace is removed along with the factory cats, with this being only tied by nuts/bolts, does anyone notice any further rattling directly underneath the seats when driving hard? Or any other noise? Vibration etc Quote Link to comment Share on other sites More sharing options...
Neilp Posted September 2, 2012 Share Posted September 2, 2012 Nope, the cats weigh a ton and that's why they need the brace. Decats will cause more vibrations but not enough to vibrate your seat Quote Link to comment Share on other sites More sharing options...
Yella Fella Posted September 2, 2012 Author Share Posted September 2, 2012 No I meant it feels it's directly below where I'm sat, as I'm that area. Not actually vibrating my seats Quote Link to comment Share on other sites More sharing options...
Dblock Posted September 2, 2012 Share Posted September 2, 2012 No I meant it feels it's directly below where I'm sat, as I'm that area. Not actually vibrating my seats Maybe take it back to the garage or jack it up and get some pictures? Doesnt sound right Quote Link to comment Share on other sites More sharing options...
Neilp Posted September 2, 2012 Share Posted September 2, 2012 No I meant it feels it's directly below where I'm sat, as I'm that area. Not actually vibrating my seats Maybe take it back to the garage or jack it up and get some pictures? Doesnt sound right This ^^^^ Quote Link to comment Share on other sites More sharing options...
Yella Fella Posted September 4, 2012 Author Share Posted September 4, 2012 Neil being doing some research on google and seen you comment on a thread a year ago about similar issue... When I drive the car hard and use engine braking or decelerating around 3000-2000 revs, it sounds like some sort of mental loud as hell metallic rattle. Like my car is falling apart, crazy. Surely that's not the rasp that's known with decats? That's proper nuts! Now I know I've got issues with my OEM exhaust that needs replacing at some point (any excuse haha), I've also noticed whilst I was underneath my cat the the OEM y pipe has got extensive welding on a lot of the joints. I was comparing it to another OEM y pipe that's currently on sale here, and that looks plain Jane compared to mine. Quote Link to comment Share on other sites More sharing options...
tez162003 Posted September 4, 2012 Share Posted September 4, 2012 2000-3000 revs for a rasp sounds about right to me, mine does it at those revs. As for the bracket on the decats, most half decent decats should have brackets to fix them to the car. Quote Link to comment Share on other sites More sharing options...
Yella Fella Posted September 4, 2012 Author Share Posted September 4, 2012 2000-3000 revs for a rasp sounds about right to me, mine does it at those revs. As for the bracket on the decats, most half decent decats should have brackets to fix them to the car. Never realised the notorious rasp is actually a rattle haha, now I know. Damn metal rattlesnake, so much for resonated decats Quote Link to comment Share on other sites More sharing options...
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