This is a discussion on Quiet Exhaust within the External Engine forums, part of the LSx Technical Help Section category; I currently have a LM1 exhaust on my 2000 Z/28. I plan on doing some work to her this summer, ...
05-28-2007, 02:56 PM #1
I currently have a LM1 exhaust on my 2000 Z/28. I plan on doing some work to her this summer, adn have decided I want to go the "sleeper" route. I will be doing a H/C swap, LT's, and hopefully a TD system. But I want the exhaust to be quiet. I want a nice rumble, but still want to be able to stay below the radar at idle and low RPM.
I was looking into the TSP Rumbler TD system and it comes with three mufflers. They come with choice of: Sweet Thunder, Moroso Spiral Flows, and Dynomax Bullets. Which is the quietest? and how quiet is "quiet."
Or could you recomend a quiet muffler? I've tried the search, and it seems like I'm going against most other people when it comes to the exhaust.
05-29-2007, 10:13 AM #2
None of those are going to be quiet at all.
05-29-2007, 11:01 AM #3
- Join Date
- Mar 2007
83 Z28 new project
- 98 Formula WS7-sold:(
I really haven't heard a true dual car thats quiet yet. The muffler choices are limited due to the clearance constraints in the rear.TSP Torquer V2 cam, ported heads,fast 90/90 combo, LT's, 3400 stall, magnaflow CB, most other bolt ons, full suspension, t-top and HID conversion
422 RWHP, 384TQ
05-29-2007, 02:33 PM #4
05-29-2007, 02:47 PM #5
i use the bassani tru-duals on both of my cars. it utilizes the factory muffler location. both pipes go over the passenger side axle and into one muffler. it's a dual in/out design. almost stock like sound inside the car. notice able outside the car when you get on it.
pics of the system on my webpages
05-29-2007, 03:32 PM #6
05-29-2007, 03:49 PM #7
OMG, the freakin pipe coming out to the passenger side rear makes some real ridiculous bends on the Bassani.
05-29-2007, 04:03 PM #8
05-29-2007, 04:06 PM #9
05-29-2007, 05:29 PM #10
Quite is my car... Longtube Pacesetters, Off Road Y pipe, No Cats, stock Z28 exhaust. Very quite...
Oh yea, 2 DMH Low profile cutouts on the Ypipe... it gets LOUD
05-30-2007, 05:33 AM #11
Thanks for the info. I don't mind loud when I'm on it, but I want something that's not going to make my ears bleed at every point (that's what the Chevelle is for). I will definately look into the Bassani exhaust system.
But let me bounce another idea off you guys. Now, I've never really been under my car to look at the exhaust, so bear with me. What would happen if I took my LoudMouth1 exhaust, and welded in some of the bullet style mufflers in line with the pipes? Is that even feasable? and if so, how would it sound? Or should I just stick with a completely different exhausT?
05-30-2007, 08:02 AM #12
05-30-2007, 08:16 AM #13
if your going true duals...i have yet to hear a quiet one.. however, i have a quiet exhaust, its a borla (BOR-140028)... thats the quiet borla.. most guys that talk on here about borla have either (BOR-14780) or (BOR-14813)..those are the loud ones... mine is quiet inside and out and has a very nice sound at WOT.
05-30-2007, 10:40 AM #14
- Join Date
- Dec 2005
- Dallas, TX
'12 Silver SS 1SS
- '00 Black SS #8617
who wants quiet? honestly?2000 SS - The Wicked Witch: °°Cammed 'n Slammed°° 458rwhp/410rwtq
Originally Posted by Bowtie_girl30
05-30-2007, 04:00 PM #15
05-30-2007, 05:21 PM #16
05-30-2007, 05:26 PM #17
- Join Date
- Aug 2005
- Thornton, CO
Red Tint Jewelcoat
- 2008 Trailblazer SS
Tame until you get on it.
I have duals with magnaflow mufflers. I can hear my stereo just fine. But you know when I step on it.
05-30-2007, 05:28 PM #18
as far as the borla putting out as much as any other catback, almost. just shy of 17 rwhp. i swapped out the borla for the bassani tru-duals, on the wife's car. wife's car has bassani headers, y-pipe, and no cats. this was on stock tuning as well. more power and less interior noise. here's the results:
05-31-2007, 05:18 AM #19
i figured the true dual exhaust set-ups would put out more..i was mainly saying the 1 into 2 set-ups....
and what borla did she have? because mine is the quiet one, even with the lts and ory when im crusing its not annoying and at idle is very quiet... but wot is a different story!!
05-31-2007, 05:24 AM #20
Hooker Aerochamber is pretty quiet at idle and at low rpms and roars when you step on it, but its not for true duals.
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