True Dual!
Thread Starter
On The Tree
iTrader: (6)
Joined: Sep 2007
Posts: 126
Likes: 0
From: Nacogdoches/Houston TX
True Dual! Ok, I already have the Magnaflow catbac system. I have a friend that is gonna give me another magnaflow muffler. What would I have to do to make my 02 WS6 a true dual. And what are usually the gains. Better Performance, better sound, ...? Thanks!
better sound yes in my opinion. performance not really, unless you are making alot of power. with your application I doubt you will pick up a noticable amount of power, but it sounds mean as hell with duals. you will have some issuses using your current mufflers becuase they are huge and since it is run on a catback it should be a single in dual out muffler right? You need single in single out to properly due the duals.
Banned
Joined: Mar 2007
Posts: 661
Likes: 0
From: Shreveport,Louisiana
Spend lots & lots of moola for a heavier vehicle that drags all the time & for an exhaust system that hangs so low you can see it from the side & picks up maybe 2 or 3 Hp . But heh,It will probably sound a LITTLE better .
Just my 2 cents . If its just the sound that you want put a nice camshaft in it .
Just my 2 cents . If its just the sound that you want put a nice camshaft in it .
Launching!
Joined: Aug 2005
Posts: 227
Likes: 0
From: Burlington, NC
I also have more ground clearance with over the axle duals than I had with that stupid "Y" pipe. A dyno tast showed that I picked up 15 horse poweer when I went from the Y pipe system to the dual exhaust system.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
TECH Addict
Joined: Nov 2005
Posts: 2,379
Likes: 2
I did true duals over the axle and have had no issues with clearance EXCEPT for me being a cheap *** and using magnaflow 3 inch cats. That's a bit low on the driver's side that requires a bit more finesse to clear the speedbumps (shocks would solve that problem or getting a smaller cat).
As for performance, a good y-pipe design can net you the same power but nowhere near the sound of a true dual setup. Another thing to note is that true duals are very effective. Mine are 2.5 inch, not equal length, using cats and 3 inch mufflers for each side. (3 inch hi flow type muffler will flow = to a 2.5 straightpipe)
Despite those restrictions/conditions, adding headers and true duals netted me a 43HP gain over stock. I went from 306->349HP. Before the tune it was 344HP with the stock 98 tune. It could quite easily be a 50HP+ gain in total if I didn't use cats and kept the bullets on the car. QTP advertises 40HP gain on their website... not too often you find any performance parts giving "marketing" numbers...
As for performance, a good y-pipe design can net you the same power but nowhere near the sound of a true dual setup. Another thing to note is that true duals are very effective. Mine are 2.5 inch, not equal length, using cats and 3 inch mufflers for each side. (3 inch hi flow type muffler will flow = to a 2.5 straightpipe)
Despite those restrictions/conditions, adding headers and true duals netted me a 43HP gain over stock. I went from 306->349HP. Before the tune it was 344HP with the stock 98 tune. It could quite easily be a 50HP+ gain in total if I didn't use cats and kept the bullets on the car. QTP advertises 40HP gain on their website... not too often you find any performance parts giving "marketing" numbers...