![]() |
#1 |
lost between two shores
Drives: 2020 SS 1LE Join Date: Apr 2018
Location: North Texas
Posts: 138
|
Secondary Cat Delete Picture Book
Had the secondary cats deleted this morning and it's quiet louder...see what I did there?
![]() Sorry for the cheesy joke, but it really is the best of both worlds - it's louder where you want it (start-up, decel pops, accelerating, revving) and quiet when you need it (highway cruising, no drone, talking on phone or to passenger, listening to news, etc.). Definitely worth the $125. ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
__________________
2020 SS 1LE | Almost Mod Free
|
![]() |
![]() |
![]() |
#2 |
![]() Drives: 2017 2SS F1FTY Join Date: Feb 2020
Location: Fort Wayne, IN
Posts: 348
|
Great pics and thanks for sharing. You took it to your local muffler shop and it was $125? Seems like a nice cheap mod for more sound. You have no other mods done to the exhaust/air? Did the tone change or is just a bit louder?
|
![]() |
![]() |
![]() |
#3 | |
lost between two shores
Drives: 2020 SS 1LE Join Date: Apr 2018
Location: North Texas
Posts: 138
|
Quote:
No other mods, and can't tell tone changed, just turned the volume dial up a few numbers from the factory exhaust.
__________________
2020 SS 1LE | Almost Mod Free
|
|
![]() |
![]() |
![]() |
#4 | |
![]() Drives: 2017 2SS F1FTY Join Date: Feb 2020
Location: Fort Wayne, IN
Posts: 348
|
Quote:
|
|
![]() |
![]() |
![]() |
#5 |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,226
|
Nice photo essay.
Your tires are veering toward slicks like mine! |
![]() |
![]() |
![]() |
#6 |
![]() Drives: 2019 Camaro 1LT 3.6 v6 Join Date: Sep 2019
Location: PA
Posts: 32
|
Can you pass inspection with these deleted? What about deleting resonators?
Thanks in advance! |
![]() |
![]() |
![]() |
#7 |
Petro-sexual
|
Thanks to threads like these, I have been looking for methods to gut mine with minimal cutting of the OEM pipes and no welding. I live in CA (regrettably) so I want to keep OEM-appearance.
__________________
'20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs |
![]() |
![]() |
![]() |
#8 | |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,226
|
Quote:
http://www.drivecleanpa.state.pa.us/...iladelphia.pdf NJ stopped doing this type of visual inspection years ago. Now it's just OBD hookup and if there are no codes you pass emissions. But they used to do a pretty thorough under-car check with mirrors, and they are mostly car guys so they knew what to look for. |
|
![]() |
![]() |
![]() |
#9 |
lost between two shores
Drives: 2020 SS 1LE Join Date: Apr 2018
Location: North Texas
Posts: 138
|
Just turned 11,000 miles, and just finished putting a plug in the right rear. New set of tires sitting in garage, but I'd like to get one good donut video before putting them on. LOL
__________________
2020 SS 1LE | Almost Mod Free
|
![]() |
![]() |
![]() |
#10 |
![]() Drives: SS A8, NPP, Red Hot Join Date: Jan 2019
Location: Toledo, OH
Posts: 583
|
I have not seen a pic of the inside of our cats, seems very restrictive, a lot more restrictive than my previous cars. No wonder it gets a lot louder.
|
![]() |
![]() |
![]() |
#11 | |
lost between two shores
Drives: 2020 SS 1LE Join Date: Apr 2018
Location: North Texas
Posts: 138
|
Quote:
![]() For my county in TX it's just a OBD plug-in; I've never seen them look under a car. Since the secondary cats are not monitored, and as long as you don't have a leak on the welds sucking in cold air on the decel that would trigger the nearby O2 sensors, then you should be good. Mufflers reduce volume; resonators tune sound. No reason a deleted resonator would cause you to fail inspection.
__________________
2020 SS 1LE | Almost Mod Free
|
|
![]() |
![]() |
![]() |
#12 |
lost between two shores
Drives: 2020 SS 1LE Join Date: Apr 2018
Location: North Texas
Posts: 138
|
BTW, the secondary cats weigh-in at 5 lbs. each.
__________________
2020 SS 1LE | Almost Mod Free
|
![]() |
![]() |
![]() |
#13 |
L8ap3x
|
|
![]() |
![]() |
![]() |
#14 |
lost between two shores
Drives: 2020 SS 1LE Join Date: Apr 2018
Location: North Texas
Posts: 138
|
Front tires aren't too bad, but the backs are well into the red on the tire tread gauge. I drove it for the first time in the rain last week in NW Arkansas and if there was the slightest amount of standing water it was a major pucker-factor!
__________________
2020 SS 1LE | Almost Mod Free
|
![]() |
![]() |
|
|
Post Reply
|
|
|