Wow, big difference. Is that the catted x pipe to stock mufflers and do the resonator ever touch and cause rattling? My biggest fear for doing the headers to stock mufflers is it will be too loud for me but I hate how quiet it is now.

 

Subscribing for later.

 

WOW what a difference. Got me to rethinking headers now. Thanks for the effort posting and videoing this. Very helpful.

 

Yes chatted Midpipe to stock mufflers. No rattles at all from resonators as they are close but setup is pretty solid. You can do what another member did and weld a little tab between them if you are worried about it. I am sure cam made my car louder too, but you can always start with headers to factory mufflers, and it's no biggie to add resonators like I did after if It's too loud for your liking.

 

I'm doing the exact same setup here - Kooks with the green cats (I think Ben has the "standard" cats - whatever the difference is), same resonators into stock exhaust. I'm pretty picky about it being quiet like stock and not raspy or blatty at all. I want the power of LT headers but I don't want to give up the Caddy nature. I know you guys will think I'm crazy, but I don't even want the extra supercharger whine. I know with the G-Force 4.5 inch intake I'm going to get plenty of whine, but I'll be immediately looking for ways to reduce it. I'm even going to cut and retrofit the stock hood liner into my Power Hood to keep the underhood noise down. Don't worry - not going to drill into that beautiful carbon fiber. I'm going to use some large plastic washers, some industrial double-sided tape, and some plastic nuts and bolts to provide some simple but durable mounting points and just re-use the holes already in the hood liner.

SO - bbradyc5 has done an excellent job of capturing the key sound qualities of both setups. My 2012 V is just about done with repairs - maybe I can add to Ben's work by doing a side-by-side comparison of a 100% stock V with the setup Ben has. If I line them up side by side and use the same camera/phone/mic setup it should give everyone a good comparison of sound quality, tone, and maybe even volume if the comparison is good enough/close enough.

Mike and the gang just started on the wagon yesterday, so it'll be another week or so, maybe a tad longer before all the work is done. So hang tight and I will post up some kind of comparison as soon as I can. Alternately, maybe someone with a 100% stock V lives close enough to Ben to do the exact same comparison. But just hearing Ben's videos is enough for me - it tells me that the upgraded tone and sound he has achieved is exactly what I am going for - something smooth, deep, quiet, and right up there with stock in terms of overall volume and smoothness,

 

Amazing difference. I'm sold. Adding this to my to do list.

 

All I can say Ben is the stock wagon mufflers must be way different than the sedan muffs!!


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Yeah even Phil couldn't believe it when he was tuning it. Not sure what the deal was (change in '14 mufflers?) so it's good to caution folks that do the headers first and then judge if you want it quieter. Unless you are like Tri and already know you want a really quiet setup from the get go. The resonators I chose made a BIG difference in volume so if you only want to smooth/tone down your setup a bit then just go with a smaller body resonator option.

 

Sorry to ask a question in this thread but would dynomax bullet mufflers help with the drone and raspyness cause I have no cats and the sound is crappy with the cutouts between 1500-2500
Thanks in advance

 

I am quite certain they will greatly eliminate the raspiness, and likely help with any droning issue as well.

Whoa those are close to the body.. I bet they killed sound but man that's a tight fit,

The angle of the pics definitely make it look tighter than it really is (it's tight but seeing it in person I wasn't too worried)

Thats gonna rattle

So far no issues, if it ever does, a couple little tabs welded on should do the trick

 

Great videos, they really capture the difference. Great thread as well, stuff like this is why is forum rocks.

 

Whoa those are close to the body.. I bet they killed sound but man that's a tight fit,

 

Hey Mike - my resonators should be delivered to your shop any minute now! And yep - they'll be tight but that's ok. I was thinking instead of welding a tab between them, permanently locking them together, it might be good to have a tab welded onto each muffler so that they overlap. Then you drill a hole thru both tabs and put a bolt thru them with a lock washer or some locktite or something. This locks the two mufflers together, preventing rattle and probably dampens noise a touch more, but it means you can remove or lower each side of the exhaust individually if needed down the road. But the idea is the same - bolt or weld those two parts together so they don't almost touch causing a rattle under certain circumstances. I think it fits ok though - you just gotta compensate for the tight tolerances somehow.

I love Ben's sound - it's exactly what I am going for.

Mike - when you guys get mine hooked up and do the dyno pulls, can you grab a video with sound from the back so folks can hear what this setup sounds like at WOT on the dyno across the rpm range? That would probably be the one clip that is missing from Ben's captures so far...he has cold and warm start for everything, and I bet he posts a drive-by and rev clip pretty soon. But it would be hard to get a capture like you can from the dyno doing a WOT pull - that will be a nice, controlled situation that should really showcase what this setup sounds like. Hell - now I can't wait to hear it!

 

Thats gonna rattle

 

I just order those same resonators the other day for my upcoming cat delete work. I'm going to keep the stock manifolds with my setup for now. I hope my car will sound as good as yours.

 

I think if you are just using stock manifolds, deleting the cats, and putting these resonators in place of your cats (hopefully a little further downstream - less heat!) then into stock muffs your car will be extremely quiet but still perform extremely well. I expect your sound will be a lot quieter and smoother than bbrady's with the headers and a pretty good sized cam.

 

The 3" In/Out with 4" case diameter Magnaflow options are smaller

It looks like the 3" In/Out Equivalent is quite a bit shorter in length than the 2.5 In/Out
What's the difference between these 2 aside from length and price?

One says "Perforated Tube w/Packing", the other just says "Glasspack". Is the packing in the more expensive option something other than fiberglass?

 

I think one is stainless and other is just regular steel (avoid!)

 

The SS model is only 14" long though Hedman Headers had a 4" case muffler and i think Dynomax did as well on SummittRacing.com

 

Here's a link to the 7 stainless options on a 3" inlet/outlet on summit racing. Looks like the 14" case length is the longest option. Need to go down to 2.5" inlet/outlet if you want larger case options.

http://www.summitracing.com/search/department/exhaust/section/mufflers-resonators/part-type/mufflers/case-shape/round/inlet-diameter-in/3-000-in/outlet-diameter-in/3-000-in/inlet-location/center/outlet-quantity/one/case-outside-diameter-in/4-000-in/muffler-material/stainless-steel

 

^ hoping so!

 

Which resonator would be the best for the sw catback?
I have so much drone.

 

Any are fine honestly. ..

From Tap uh talk

 

Killed all the rasp quite nicely. If there were a shorter version that still killed rasp but retained some of the sound that'd be excellent.

 

There is shorter options, I went with the largest I could squeeze on

 

Or you could just use this if you want 2.5" on both ends:

MagnaFlow Exhaust Products - For Trucks, Suv's, American Muscle, Diesel, & Sport Compact Vehicles

 

Looks like a good option too but is an inch thicker so it would hang down a bit further then the 4" diam round resonator option

 

I wanted a 3" in/out so I was looking at the magnaflow 14419. I ended up just purchasing a pair of Pypes M80 mufflers. They are stainless steel construction, but are pretty cheap. I've actually run them on a Grand Cherokee Hemi before but removed them because i thought they we too quiet (of course that system only had SRT8 manifolds and a lot of bends to get around the transfer case). I think they will work fine for toning down my current catless long tubes to Borla XR1 mufflers!

Only like $52 each, full polished stainless steel and a 4" case diameter. I plan to have them installed this weekend, Ill post up results and maybe a before /after video.

http://www.summitracing.com/parts/pye-mvr203s/overview/

Not much too them. Look just like the inside of the Vibrant Performance resonators I bought and never installed a while back

 

I have a Borla catback, and if I go with headers, I might look into these. I'm not sure how readily a 3 inch resonator would weld into the 2.5 in catback though.

 

Anyone have any concerns about the long resonators hurting power?

 

If anything at all I'm sure you're looking at a few hp tops....nothing you're going to really notice anyhow.

So if you wanna keep it loud but want the raspiness and blatty sound gone what size is good to use?

I would look for something in the 10"-12" length if you don't want it to quiet down too much and just smooth out the tone a bit.

I have a Borla catback, and if I go with headers, I might look into these. I'm not sure how readily a 3 inch resonator would weld into the 2.5 in catback though.

In another post (Stephenti) pretty sure the 3" in/out was used and he has pics as well

 

now throw on some cutouts for mild to WILD!

 

So if you wanna keep it loud but want the raspiness and blatty sound gone what size is good to use?

 

Thanks for info guys, I'll check it out