Got both resonators deleted for $60 material + labor at a local muffler shop.

 

Looks good, how's the sound? Can you take some videos and post?

 

Before anyone asks -- this is for FWD only. SH-AWD has a completely different exhaust setup from 3rd cat back.

And yes, please post videos!

 

2010 Acura TL Base 3.5L V6 engine
ATLP J-Pipe & Hi-Flow Cat
Takeda SRI
Exhaust Resonators Delete

The sound is not the greatest but it’s alright with me.

 

If you're taking both out -- put a dynomax resonator back in. I believe that's what the 3rd gen guys do, and it sounds really nice.

http://www.youtube.com/watch?v=Fafzl...eature=related

http://www.youtube.com/watch?v=ZAX8N...eature=related

 

That 3G sounds pretty good. Gives me ideas. Does anyone know if deleting the mufflers would have an adverse effect on back pressure or sound after deleting or replacing the resonators?

 

Sounds a little raspy. Any feel of performance gain?

 

not with the pre-cats in place. 1200 cell precats ftl

 

I really don’t feel any different other than the annoyance of the raspy sound lol. Really thinking of getting a dynomax or magnaflow resonator now, but not sure what would be the outcome. Anybody out there with a 4G resonators delete replaced with 1 dynomax or magnaflow resonator?

 

What a shame. The crush bent pipe probably killed any performance you had. The stock pipe was of way better quality (Stainless vs galv. or whatever that is), looked larger, and the resonators were probably flow through with virtually no restriction. What was your purpose of deleting the resonators? Certainly you must have read that the rasp will be imminent!

 

1200?? Really???

 

sounds good for the money! i did the same thing with my si

 

Correction

Allan - I mis-read. OEM are 900.

 

The raspy sound is getting on my nerve, so I made an order on Amazon yesterday for a Dynomax 24234 Ultra Flow Aluminized Steel 2 1/4" In/Out Muffler

http://www.amazon.com/gp/product/B000CIR42C

 

Can someone tell me what brand is the OEM resonator? And size if possible. I'm wondering if replacing this (with a Magnaflow round) would be different. The G3 TLs are a bit different because it's a actual muffler there (if I understand it correctly).

Where as G4 guys only have room for a round resonator.

 

On the 3G side of the forum, the general consensus is that deleting both resonators and replacing with straight-pipe is too raspy.

The most popular combination when hacking the stock exhaust seems to be a mid-muffler (2nd resonator) delete and replacing the front resonator with a Dynomax or Magnaflow resonator. This combo sounds good but may have a little drone at high gear (5th) and low rpm (like constant 40 or 45 mph).

Adding an after-market J-Pipe improves the tone (a little deeper), removes most/all of the drone and adds some HP.

There are no expected change in HP when just a stock exhaust mod like this on the 3G.

You guys will have to experiment a little to find if 4G is different.

Here is the 3G thread. Summary in post #1 with collected vids, part numbers, pics, etc.

https://acurazine.com/forums/3g-tl-performance-parts-modifications-112/removing-resonator-stock-exhaust-summary-post-1-1811-a-589747/

 

When I installed the ATLP J-Pipe & Hi-Flow Cat, I definitely heard some drone . I believe I installed it around 1,026 miles. Car is currently little over 2,000 miles and drone is still there. After I deleted both the resonators, the only sound that was good was at start up. After start up, it sounds very raspy as you can tell by the video . Got my Dynomax today and will install this coming Sunday if it doesn’t rain .

 

FWIW - when I added the J-Pipe, alone, to the modded stock exhuast it helped the drone. No doubt. Later, when I added the test pipe, the drone returned.

Your experience is very similar (so far) to the 3G: No resonators is raspy and J-Pipe PLUS Test Pipe/Hi-Flow cat has some drone.

Curious to know how the Dynomax effects your current tone, if at all.

 

1st attempt: Removed both resonators and installed straight pipe.

http://www.youtube.com/watch?v=gAyRb7KDC-4

2nd attempt: Installed Dynomax 24234 Ultra Flow Aluminized Steel 2 1/4" In/Out Muffler, reinstalled original pipe, and straight pipe second resonator.











http://www.youtube.com/watch?v=gKjIym8LV90

• 1st attempted $60 for parts and labor
• 2nd attempted $54.90 for Dynomax Resonator and $50.00 for labor
• Total cost for mod = $164.90
• $60 loss, but what is $60 when you’re riding a 30k car? It’s all good .

 

How is the rasp after you put in the resonator?

 

No rasp

 

Are you happy with the new result?

 

Straight pipe all the way back from J-pipe

[flash= http://www.youtube.com/watch?v=JcAND6EUT-c]width=425 height=350[/flash]

 

I am very happy with the result .

 

I was thinking about getting the test pipe but thought it would be too loud and may not pass smog check. I also did not want to take the risk of throwing a Check Engine Light.

 

No CEL thrown. Performance > Smog check lol jk

 

@eazy, are you using any type of high flow/race muffler before the tips or is it really just a straight pipe all the way back?

 

:thumbsdow

 

lol, it’s funny how you inserted the china man icon. I love your avatar picture, that ride must make it easy for you picking strawberries. Have you not heard the second sound clip? I corrected the rasp you douchebag.

 

Two more questions:

1. Do you think you would have gotten the same result by removing this (2nd resonator) instead, and leave the 1st OEM one on?

2. I like to try this. But I'm afraid of the welding. See how the two pipes meet right at the can (on the right side). Was there a concern about welding a straight pipe there because it really is a joint weld.

 

I’m not sure if I would get the same result from removing the 2nd resonator instead, and leaving the 1st OEM on.

If you look at the 2nd attempt pictures, the joint weld was left untouched. I’m not a pro and still learning here, but I figure deleting both resonators would free up any restriction. That is what I did for the 1st attempt and resulted rasp sound.

You can delete the small (2nd resonator) and leave the 1st resonator OEM on first. See how you like the sound.

 

I'm not sure. I think there is high flow(one for each side) right before the tips but everything else is straight. I'm running ATLP J-pipe/race pipe/cat-back

 

The last cat has no O2 sensor (i.e. will not throw a CEL) and the VAST majority of the smog abatement is done by the two primary cats up front.

Deleting the 3rd will not cause you oto fail smog check EXCEPT possibly a visual inspection.

 

hello, do you feel any improvement on performance?