JasonA Posted April 7, 2007 Report Share Posted April 7, 2007 I found a nice little plug for the intake tube that allows the removal of the intake silencer or resonator or whatever it's called. No performance characteristics are expected to change, I just wanted to clean up the engine bay and make transmission fluid and air filter inspections much easier. I guess all the G-platform Northstar cars have this setup? (98+ Seville and 00+ DeVille) It's a rubber "quick connect" product designed for connecting lengths of PVC piping (rather than using PVC unions or elbows). But they also had plugs, or caps. The Quick Cap for 2" PVC pipe fit VERY snugly in the intake tube hole...almost like it was designed for it. Tightly enough for it to never fall out, but it's not so crammed in there so as to cause a deformation in the cap or intake tube and create an air leak. It's really a perfect size. Found it at Home Depot. It was a buck and a half or something. Jason(2001 STS, White Diamond) "When you turn your car on...does it return the favor?" Link to comment Share on other sites More sharing options...
Bruce Nunnally Posted April 7, 2007 Report Share Posted April 7, 2007 I am not familiar with the 'stock' intake setup on a 98+ NS. With removal of the silencer the intake sound changes? Was the silencer some sort of cylindrical baffle that fit within that circular opening? Bruce 2023 Cadillac CT4-V Blackwing Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
Ranger Posted April 7, 2007 Report Share Posted April 7, 2007 No Bruce, it is a big flat reservoir for lack of better word that mounts on that hole. Maybe someone will post a "before" picture. Jason, Being that it is a "silencer", do you notice any difference in sound, either at normal driving or at WOT? I seem to recall Dadillac did this and reported no change in sound. Link to comment Share on other sites More sharing options...
OynxSTS Posted April 7, 2007 Report Share Posted April 7, 2007 No, It is a squarish plastic thing that is about the size of a baking pan. I had a buddy of mine with a wood lathe turn a plug for my car out of a piece of maple stock. Absolutely no change in engine noise. Easin' down the highway in a new Cadillac, I had a fine fox in front, I had three more in the back ZZTOP, I'm Bad I'm Nationwide Greg Link to comment Share on other sites More sharing options...
Ranger Posted April 7, 2007 Report Share Posted April 7, 2007 Absolutely no change in engine noise. Gotta wonder why they bothered putting it in then. Link to comment Share on other sites More sharing options...
wontgoslo Posted April 7, 2007 Report Share Posted April 7, 2007 From what i understand its some sort of sound control for internal noises heard through the intake, valvetrain noises etc. Link to comment Share on other sites More sharing options...
JasonA Posted April 8, 2007 Author Report Share Posted April 8, 2007 Yes, as I understand, I should experience no change in noise. I wouldn't mind a little increase in noise, but I don't expect it. That "silencer" is just another piece to have to remove to service anything on that side of the car, and I like the cleaned up look a little better. Jason(2001 STS, White Diamond) "When you turn your car on...does it return the favor?" Link to comment Share on other sites More sharing options...
speedyman_2 Posted April 9, 2007 Report Share Posted April 9, 2007 Kind of a wide pic. But you can see it clearly. Link to comment Share on other sites More sharing options...
95SevilleSLS Posted April 9, 2007 Report Share Posted April 9, 2007 Your engine bay is nice and clean! -Dusty- - 02 Seville STS, white diamond - 93 Sixty Special, Tan with vinyl top - 79 Coupe DeVille, Tan with Tan top - 06 GMC Sierra Z71, Black - 92 Silverado C1500, black and grey - 83 Chevy K10 Silverado, Black and Grey Link to comment Share on other sites More sharing options...
GreenMachine Posted April 9, 2007 Report Share Posted April 9, 2007 to me it looks like another beauty cover The Green's Machines 1998 Deville - high mileage, keeps on going, custom cat-back exhaust 2003 Seville - stock low mileage goodness! 2004 Grand Prix GTP CompG - Smaller supercharger pulley, Ported Exhaust Manifolds, Dyno tune, etc 1998 Firebird Formula - 408 LQ9 Stroker motor swap and all sorts of go fast stuff Link to comment Share on other sites More sharing options...
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