white4d96 Posted October 17, 2011 Report Posted October 17, 2011 After taking a 700-mile trip in my car, I have decided this exhaust has to go. I am currently running a glasspack resonator and a Thrush Welded muffler. I need something a little tamer and with a LOT less drone. Any recommendations? I have a 3100 now but will be swapping to a 3400 in the nearish future... Quote
xtremerevolution Posted October 17, 2011 Report Posted October 17, 2011 After taking a 700-mile trip in my car, I have decided this exhaust has to go. I am currently running a glasspack resonator and a Thrush Welded muffler. I need something a little tamer and with a LOT less drone. Any recommendations? I have a 3100 now but will be swapping to a 3400 in the nearish future... Magnaflows seem to quiet things down quite a bit. Inline resonators also seem to help. Quote
mra32 Posted October 17, 2011 Report Posted October 17, 2011 (edited) I was always pleased with my cheapie Summit Welded muffler. Seemed quite quiet on the highway and had the perfect burble at low rpm. I did have a 3.1 and 3 speed which made for high rpm highway driving, so I might have been out of the drone zone. I actually goofed when I ordered mine and got a 2.25" inlet/outlet. I made it work and I think that had something to do with how it sounded. They have ones that fit right in the stock location more or less. The best sounding 3100 exhaust video I have seen is either adams or this achieva (Description from the video: 3100 V6 with duel Flowmaster Super 40s (2.25" piping)): [video=youtube;g8o16UHoW6A] Edited October 17, 2011 by mra32 Quote
mra32 Posted October 17, 2011 Report Posted October 17, 2011 (edited) This is startup outside the car with the Summit welded chamber muffler Fixed the link: http://s318.photobucket.com/albums/mm432/dieslowlymf/?action=view¤t=MVI_1568.mp4 Edited October 18, 2011 by mra32 Quote
Mel87 Posted October 17, 2011 Report Posted October 17, 2011 Flowmaster super 40's sound good on the 3.1 Quote
94 olds vert Posted October 17, 2011 Report Posted October 17, 2011 Flowmaster super 40's sound good on the 3.1 This is what I want on my Grand prix. Quote
LuminaPower92 Posted October 18, 2011 Report Posted October 18, 2011 I have knock off Magnaflows that cut out the rasp of my 3.1 completely. I have a Magnaflow High Flow cat 2.5 piping through that splits under the rear birchmount via Y-pipe to the mufflers. Uploading a video i took tonight. All of the piping is Stainless. Quote
Mel87 Posted October 18, 2011 Report Posted October 18, 2011 Was the stainless steel piping expensive? Or I may ask how much was the whole system? Quote
LuminaPower92 Posted October 18, 2011 Report Posted October 18, 2011 whole system was just over $300 bucks, maybe $303? The stainless added an extra $80 to the bill. Didnt even think about it. Just did it. Meaning the 80 bucks is included in the $303 price. Quote
Mel87 Posted October 18, 2011 Report Posted October 18, 2011 Damn not too bad! But hey you wont ever have to worry about changing out the pipes. I may look in to that. I want to do something similar you did but I have been debating for a long time weather or not to cut out my rear bumper cover for a dual out (mine only has a single cut out) or wait and find a dual out bumper in the junkyard. Quote
LuminaPower92 Posted October 18, 2011 Report Posted October 18, 2011 Check the inside of the rear bumper. It might have it, just not punched out yet. Saab does stuff like this. Quote
white4d96 Posted October 18, 2011 Author Report Posted October 18, 2011 Not a fan of that Achieva. Sounds way too loud. And your other link is broken Mra. I may just cave and buy a Magnaflow and a res on Summit... Quote
mra32 Posted October 18, 2011 Report Posted October 18, 2011 I fixed the link to the video How did you determine the achieva was too loud? Thats always a mystery to me on exhaust vids. You can hear tone but volume seems very dependent on the camera and its mic setup and what kind of sound compression was used on the video. The best guess I can make is to compare it to other ambient noise in the video. The only other noise in the vid I have any bearing to is the footsteps of the camera person which sounded about the same volume as the exhaust. Quote
white4d96 Posted October 18, 2011 Author Report Posted October 18, 2011 I'm basing it mainly on when he gets on the exhaust right by the camera. At idle it seems quiet but when he accelerates it amplifies greatly. Sounds sorta like my exhaust now. Yours does as well. Not saying it doesn't sound good, because I LOVE that sound, but after seven hours driving with it at 3krpm, my ears were ringing. Quote
mra32 Posted October 18, 2011 Report Posted October 18, 2011 Thats what I am getting at. Trying to determine volume over some crappy camera video is worthless. I'll merely state that I thought the volume of my exhaust was perfect. It was just loud enough for you to know its not stock. It actually was loudest right where I wanted it to be, a little above idle, mildly accelerating and highway driving was quite quiet on my car. I've taken many trips on the highway around the 10 hour mark in that car and my less than enthusiast passengers never once complained. Actually since the lumina was quite good on the highway and comfortable most people fell asleep in my car very quickly. I dont want you to think that I am offended or anything, its just that you saying my exhaust is too loud for your liking exemplifies the fact that its extremely hard to get an idea of volume on an exhaust from the typical exhaust video. Quote
AWeb80 Posted October 18, 2011 Report Posted October 18, 2011 (edited) keep your stock cat. Put on an 18" Vibrant resonator and be done w/ it....and it's cheaper than paying for mufflers you don't need. I don't have drone but the exhaust is louder than normal. The free flowing piping and straight through resonator let the noise go out the back and not resonate the whole car. I don't know if that make sense or not, but I be a lot of your current loudness in the car is because of the mufflers. The sound is coming back up the exhaust piping and into the car. All of the loudness from mine goes right out the back. Sounds great from outside, but not loud inside. At the meet in the Spring, I'll let people drive my GP and they can see for themselves. Edited October 18, 2011 by AWeb80 Quote
AWeb80 Posted October 18, 2011 Report Posted October 18, 2011 I think I have a clip from inside the car somewhere..... [video=youtube;NY0sFc_ynvU] Quote
AWeb80 Posted October 18, 2011 Report Posted October 18, 2011 Here is the inside clip taken from my phone so it's a little over sensitive. Now remember, my car is loudish inside because of the solid engine mounts and the larger DP. The DP surprisingly added a decent amount of cabin noise which I like because 60's sound awesome. http://s434.photobucket.com/albums/qq63/Starcityracing/?action=view¤t=Movie.mp4 More outside. [video=youtube;TLI7X-9hSeE] [video=youtube;dSAQMcgHL9Q] Quote
Jprice90 Posted October 18, 2011 Report Posted October 18, 2011 Flowmaster super 40's sound good on the 3.1 yup..got one on mine Quote
white4d96 Posted October 19, 2011 Author Report Posted October 19, 2011 Hm... http://www.ebay.com/itm/Stainless-Steel-Perf-Mufflers-2-1-4-Magflow-11225-/250898618048?pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr&hash=item3a6ab916c0#ht_4663wt_1386 I'm debating getting these and making up some duals. If it's still too loud I could always replace my res with another muffler. I get off work at 330 in the morning, so I'm trying to take that into consideration as well, especially since our neighbors have a newborn. Quote
94 olds vert Posted October 19, 2011 Report Posted October 19, 2011 That's a good price for those mufflers! I might have to snag a set of those. Quote
Mel87 Posted October 19, 2011 Report Posted October 19, 2011 I assume putting on a free-flow cat would cause it to fail emissions? In Maryland my car uses the thing where they plug it somewhere in the dashboard, not the gas cap/thing in the exhaust pipe. So I am curious if I could get away with a free-flow cat or not. Quote
LuminaPower92 Posted October 20, 2011 Report Posted October 20, 2011 This is my euro with 40 series flows with a hih flow cat piped the way a z would be. The white Lumina before redoing the exhaust after having a huge hole before the flowmaster muffler, where the y pipe split and fell off . Quote
white4d96 Posted October 20, 2011 Author Report Posted October 20, 2011 See what I have now is basically a Flowmaster knockoff and I hate it. This is kinda what I want, except it's an LQ1, so no clue if I can get mine to sound like that: [video=youtube;nOPuEXZIS_M] Quote
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