I thought i would start a new thread .So it can be seen more.
I bought the SRS 2000-2003 cat back. But it is way to loud .Pictures below shows the difference ,between the Northern exhaust and SRS.

The resonator is way to small.

OK i have the full Northern Exhaust stainless steel catback (Stock Style)But below is just the b-pipe that can be bought separately.

https://www.ebay.com/itm/fits-1999-2...e/172426200089

So ..the great thing is the SRS is stock in the way it bolts together. You can use any combo.

This is good because i love the SRS muffler . So i bolted the northern B-pipe and SRS muffler together.
And i must say, it sounds like what a stock exhaust sounds like. But for missing precats ,and i have stock intake.

I love the sound .it's the kind of quiet you get when you rev it, and you hear 99% engine sound not exhaust.

Well i am going to stick to this setup. I haven't driven it yet but idling and revving sounds perfect.

 

What's the length of the rear muffler body? About 18"? What the pipe size? Looks like OEM stock size...2" maybe 2.25"

 

Yes the body is 18 inch long (without tips and pipe) And it is a tad over 2.25 inch

 

Too loud? Are you held hostage? Blink twice for yes.

 

Even my 96 maxima ,that ran a 12.72 1/4 had the stock 96 maxima Nissan muffler on it.

I plan on picking up a 370z in a year or two and i will probably leave the stock exhaust on it.

I was fooled by the SRS because of the stock sized muffler. But i did't realize how much the resonators do.

By the way if anybody wants to buy this SRS b pipe i will sell it for $60

 

Your undercarriage looks great. Connection in pic 8/16 looks a little off kilter. I'm a fan of the stealth, Mercedes-quiet exhaust note myself. I love a nice -V8- exhaust note, but there's really something to be said when you walk on by most sedans and sports cars (vettes included, believe it or not) on the road in a 2013 S550 Mercedes and the turbos aren't even perceptible at 5k RPM, much less the exhaust.

 

That alignment is pretty good fitment for exhaust when it's loose. You don't want to see the super chinesium lol

 

Thanks ...i agree with the comments you make.
As for the exhaust being loose. I leave it that way ,for about an hour or so.
Because i use RTV copper gasket,i wait for it to set before i tighten them down.I took the pictures before and after this stage.

 

Between the OE resonators and cats you almost don't need the muffler. And that's coming from somebody who doesn't particularly like loud exhausts either.

I do think that a car with any claim to sportiness should have a little "voice" . . . more than a whisper, less than a shout, if that makes sense. Just enough that the engine type can be identified by the sound alone as the car accelerates up through the gears.


Norm

 

Yes i agree. That muffler is definitely ,still giving a rumble.

I just took it for a drive ,this morning. Idle is very quiet,to the point it would be hard to hear the car running from a few feet away.

it is still louder than stock. Highway cruise is quiet also . there is a slight drone in a 2000-2500 range. I am debating putting the northern muffler on also.
But it has a very nice sound the way it is. I don't think that SRS muffler does any sound muffling .

i think it actually tunes for the rumbling sound,it makes. Does that make sense?It rumbles more than any 3.0 liter engine i have ever heard.

Here are the 2 pictures of inside of each tailpipe on the muffler.

 

nice info !

 

I see a lot of turbulence with all the transitions internally...I would personally go to a Magnaflow 2.25" X 6" x 18'' resonator p/n:12645...and leave that 18" rear muffler in service . I experienced a lot more torque and throttle response on my 3" Cattman exhaust when I switched to the 6" round one piece Magnaflow design...It was so much more cleaner internally, no internal turbulence from all the transitions, welds, offset piping!

 

It's a 3.0, no worries on perf loss

 

Could be. Then again, most any aftermarket flow path is going to be less tortuous than OE, so the individual exhaust pulses that make up that rumble should not be damped out quite as much.

Here's what the dual-mode 20AE muffler looks like on the inside. The standard muffler flow path is probably closer to the blue-yellow path, and most aftermarket "performance mufflers" are most likely a lot straighter than the blue-red path that's supposed to be activated under heavy load at higher revs when "backpressure" overcomes the spring loading on the valve (it's a much stiffer spring than you might expect).




Norm

 

To bad i couldn't find a brand new one of those. Got to be some mint somewhere?

 

That's a reverse flow muffler with the spring loaded flap that opens during increase flow at WOT. It flows well for an OEM unit but It won't outflow a straight through muffler ....But anyway the "one piece perforated" pipe that Magnaflow utilizes a nearly turbulent free flow pattern which increase your throttle response and increase your torque!