05-31-2016, 01:30 AM | #1 |
Drives: 2018 SS 1LE Join Date: Feb 2011
Location: hilton head island
Posts: 506
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muffler delete?
i have kooks LT headers with no cats and CAI on my 15' 1le with factory NPP. the car is loud but i want it louder without having to spend money on an exhaust. how do i go about it will a tune be required?
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15' 1LE
R.I.P Kendall Walton |
05-31-2016, 01:36 AM | #2 |
Drives: '11 2SS/RS LS3 M6 (Sold) Join Date: Dec 2015
Location: VA
Posts: 200
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No tune needed for muffler delete. I have a corsa and I don't remember much about the stock exhaust but on my exhaust the muffler have a clamp literally 6 inches behind them. Unbolt the clamp and slide the mufflers out. Now your exhaust should end a little bit behind the diff and be slightly pointed at the ground, or at least mine would be, you can leave it like that or you can buy a muffler delete kit through a couple of companies. All the kit does is run the exhaust to the factory holes in the rear splitter without a muffler. Hope this helps.
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2011 IOM 2SS/RS LS3 M6- Injen CAI, TSP 1 7/8” headers, PTB, Hurst short throw, Corsa catback exhaust, 20" TSW Nurburgrings, BMR lower control arms, BMR tunnel brace, Hotchkis lowering springs. 3660lbs. Tuned by me (sold)
2010 RJT 1SS/RS LS3 M6- CAI, TSP 2” headers, TSP F-35 cam, PTB, Hurst short throw, Dronemaster catback, BMR lowering springs, Kirkey seats, 20”/18” Weld Belmonts, 3550lbs. |
05-31-2016, 01:51 AM | #3 |
Drives: Camaro SS 2014 Join Date: Jan 2015
Location: Texas
Posts: 322
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Hey there… do it! I have a 14 SS with long tube headers, Cai, High flow cats, tune and a muffler delete and I love it. Sure after a while you get use to it and then you want a cam but it def is a nice sound. I bought quad exhaust and had them powder coated black to match my car theme and they just welded them on and boom…instant sound.
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05-31-2016, 02:29 AM | #4 |
Drives: 2018 1SS M6 Join Date: Nov 2014
Location: Houston
Posts: 2,617
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Well, throw on 3" pipes all the way to the back, about as loud as it's gonna get. Will definitely get some attention. Or you could put in some cut outs, so you can pick and choose when and where you want to be loud.
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05-31-2016, 12:38 PM | #5 |
Drives: 2018 SS 1LE Join Date: Feb 2011
Location: hilton head island
Posts: 506
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Where can I buy the 3" pipes? I can't seem to find the X pipe or H pipe from kooks. Or how do I go about deleting the mufflers
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15' 1LE
R.I.P Kendall Walton |
05-31-2016, 12:40 PM | #6 |
Drives: '11 2SS/RS LS3 M6 (Sold) Join Date: Dec 2015
Location: VA
Posts: 200
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They unbolt right next to the rear axle.
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2011 IOM 2SS/RS LS3 M6- Injen CAI, TSP 1 7/8” headers, PTB, Hurst short throw, Corsa catback exhaust, 20" TSW Nurburgrings, BMR lower control arms, BMR tunnel brace, Hotchkis lowering springs. 3660lbs. Tuned by me (sold)
2010 RJT 1SS/RS LS3 M6- CAI, TSP 2” headers, TSP F-35 cam, PTB, Hurst short throw, Dronemaster catback, BMR lowering springs, Kirkey seats, 20”/18” Weld Belmonts, 3550lbs. |
05-31-2016, 12:45 PM | #7 |
Drives: 2011 SIM 2SS/RS LS3 Join Date: Sep 2013
Location: Tupelo, MS
Posts: 5,902
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Send me your NPP mufflers, go to a muffler shop, and have them bend pipe and stick a tip on the end
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2011 2SS/RS built 8/24/10
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05-31-2016, 01:48 PM | #8 |
Drives: 2018 1SS M6 Join Date: Nov 2014
Location: Houston
Posts: 2,617
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Yep, find a good custom muffler shop that mandrel bends. Not sure how much it'll cost, but it can't be any more than the pre-fabbed kits.
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05-31-2016, 01:55 PM | #9 |
Started#gottalovethatblue
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Before you chop your mufflers off, do the NPP fuse pull. The fuse is in the trunk and it will keep the flaps open all of the time instead of only above a certain rpm. Your other option along those lines would be to get a mild to wild switch so that when you need it quieter you can clip a switch and close the flaps.
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05-31-2016, 02:02 PM | #10 |
Drives: 2014 Chevy Camaro SS Join Date: Dec 2014
Location: San Antonio
Posts: 821
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After the LT headers get a full 3" x-pipe to true 3" exhaust straight pipe out the exit...
That is what I have and is plenty loud. I will need to get mufflers once I get the cam though, it will be too much without the mufflers, imo! My neighbors already hate me |
05-31-2016, 02:27 PM | #11 | |
Founder of Cocoa Studios™
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Quote:
I think exhaust cutouts are great because you can tone it down a bit (closing cutouts). Does anyone know if you tuned out afm on an L99, and put cutouts in place of resonator, would it sound like an LS3 with cutouts? |
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05-31-2016, 02:29 PM | #12 |
Drives: 2011 SIM 2SS/RS LS3 Join Date: Sep 2013
Location: Tupelo, MS
Posts: 5,902
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No. The L99 has a less aggressive cam
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2011 2SS/RS built 8/24/10
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05-31-2016, 04:28 PM | #13 |
Drives: 2018 SS 1LE Join Date: Feb 2011
Location: hilton head island
Posts: 506
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Where can I get the 3" pipes? can someone provide me a link? I can't seem to find the one for the kooks version. I would love to buy it
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15' 1LE
R.I.P Kendall Walton |
05-31-2016, 05:49 PM | #14 |
Drives: 2011 SIM 2SS/RS LS3 Join Date: Sep 2013
Location: Tupelo, MS
Posts: 5,902
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2011 2SS/RS built 8/24/10
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