Currently running straight pipes on my ride. Really not that loud, but looking to go 'stealth' mode with a quieter exhaust. I had a knockoff flowmaster 2.5" muffler w/2k on it prior to straight pipes. Is there any way to make it quieter? I was considering trading someone for a stocker, but they are so heavy. Sounds like the flowmaster actually makes it louder. I don't mind loosing a few ponys for a quieter exhaust.

 

slp dual/dual

 

+1 if u can find one....are u on stock manifolds? look into hooker as well

 

I'm trying to figure out how you are running straight pipes with a muffler? It's contradictory.

SLP dual/daul and 2OTL are the best and are stainless. If you want to quiet down what you have you can add bullet mufflers in the I-pipe or one in each side of the y-pipe. That will help alot. Ditch the flowmaster atleast and get a magnaflow.

 

No stock manifolds they are shorties, y-pipe is still stock, no cats. Trying to stay away from SLP. Got the SLP lid, MAF and bellows though.

 

if ur wanting to ditch the flowmaster set-up amd arent interested in slp, thn look into hooker or magnaflow, evn with headers mine is still pretty quiet

 

just go to summit buy the 67 dollar hooker max flow muffler and replace he flomaster with it
its quiet but is surprisingly loud at WOT....
was ranked like top 5 power making muflers
is 3 inch opening straigt though pm me if you want me to take pics

 

Yep that will do the trick, priced right too.

 

x3 you will gain power and have a somewhat quiet car that still roars when you nail it.

 

That will work! Thanks. PM sent.

 

Sorry - I'm running straight pipes, but have a flowmaster.

 

Could you elaborate on your definition of "quiet" - as in stockishly quiet, quiet as other catbacks out there, in the middle??? I've looked at those mufflers before but never pulled the trigger.

 

here you go there is the power rating and how loud they are.

The results in HP order:

1.Flowtech Warlock (open) 374.2 hp/ 333.1 tq
2.Bassani Real Street 373.7 hp/ 333.8 tq
3.Hooker Maxflow 373.5 hp/ 333 tq
4.Borla XS 373.3 hp/ 332.6 tq
5.Magnaflow 372.8 / 332.5 tq
6.MAC 372.3 hp / 331.5 tq
7.Flowtech Afterburner 372.3 hp/ 330.1 tq
8.Hooker Aerochamber 372.1 hp/ 330.4 tq
9.Bassani 372 hp/ 333.5 tq
10.Spintech 371.6 hp/ 332.2 tq
11.Edelbrock Performer RPM 370.9 hp / 331.3 tq
12.Borla XR1 370 hp/ 334 tq
13.Flowtech Terminator 369.5 hp / 331.3 tq
14.Dynomax Ultra Flo 369.4 / 333.2 tq
15.Flowmaster 369.4 hp / 331.8 tq
16.Flowtech Warlock 366.3 hp / 325.3 tq
17.No muffs 365.2 hp / 330.1 tq

Sound Off in Quietest to Loudest (Decibels):

1.Borla XS, 80db at idle, 90db at 2,000 rpm, 110db at WOT.
2.Hooker Maxflow, 80db at idle, 90db at 2,000 rpm, 120db at WOT.
3.Magnaflow, 82db at idle, 91 at 2,000 rpm, 114db at WOT.
4.Flowmaster, 82db at idle, 93 at 2,000 rpm, 115db at WOT.
5.Flowtech Warlock, 83db at idle, 92 at 2,000 rpm, 112db at WOT.
6.Dynomax UltraFlo, 83db at idle, 94 at 2,000 rpm, 113db at WOT.
7.Borla XR1, 83db at idle, 96db at 2,000 rpm, 118db at WOT.
8.Bassani Street, 83db at idle, 96db at 2,000 rpm, 120db at WOT.
9.Edelbrock RPM, 84db at idle, 93db at 2,000 rpm, 118db at WOT.
10.Bassani Real Street, 84db at idle, 96db at 2,000 rpm, MAX. (120+db).
11.Flowtech Afterburner, 86db at idle, 94db at 2,000 rpm, 115db at WOT.
12.Flowtech Terminator, 86db at idle, 94db at 2,000 rpm, 119db at WOT.
13.Hooker Aerochamber, 87db at idle, 94db at 2,000 rpm, 114db at WOT.
14.SpinTech, 87db at idle, 97db at 2,000 rpm, 116db at WOT.
15.MAC, 87db at idle, 98db at 2,000 rpm, 119db at WOT.
16.No Muffler, 91db at idle, 103db at 2,000 rpm, MAX. (120+db).

 

^^^^^Good info^^^^^ Thanks!

 

damn that borla XR1 is $$$ I'm looking to sale my borla cat back now and go with something new.... good info above!

 

what i havw is long tubes to ORY to loudmouth 1 to electric cutout the stock muffler. So when i open my cutout its just the loudmouth and when i close it, it goes through loudmouth and stocker. its nice to have when a cop pulls up next to you

 

Straight pipes means there is no mufflers where I'm from.

2 bullet mufflers in the y-pipe where the cats were will quiet it down ALOT. But the flowmaster is also a restriction, I would put a magnaflow in there or better yet repalce the whole catback with one of the SLP setups. They sound great, aren't too loud, and are stainless to last a lifetime. I got tired of rusting exhaust systems and will never again buy anything that isn't stainless.

 

I like your setup. That is exactly what I want. One pipe out the back and tucked up in there, pretty quiet too. I have no badges, as it is a B4C. Don't want to deal with punks pulling up to me at the stop light trying to run me. I like to be the instigator when I want

Jantzer98ss
There are straight pipes on car. The muffler was cut out and sitting in my house. Sorry, didn't get that across on the thread. Dam typing. Anyone need a 2.5" slowmaster knockoff? Good for a V6

 

+1 dude. badass.

 

Any reason for this, just curious??