Secondary cat delete with NPP - Page 6

jaymsu · 11-07-2016, 02:20 PM

What is pipe size everyone is using? 2SSmurf and I contacted a local shop, and they carry 2.5" or 3" pipes. They can order 2.75" (which I read somewhere here in this forum that the size of our pipe is 2.75") but it has to be 10' pipe purchase.

Let me know what you guys used. Thanks.

Whitemaro6 · 11-07-2016, 03:12 PM

Quote:

Originally Posted by jaymsu

What is pipe size everyone is using? 2SSmurf and I contacted a local shop, and they carry 2.5" or 3" pipes. They can order 2.75" (which I read somewhere here in this forum that the size of our pipe is 2.75") but it has to be 10' pipe purchase.

Let me know what you guys used. Thanks.

My shop went with 3'' then crushed it down. Gives it a little bit of a chamber but only 1/4 inch.

srossi5 · 11-07-2016, 08:50 PM

My shop used 2.5 and it worked out fine no issues

Megahurtz · 11-08-2016, 09:29 AM

Quote:

Originally Posted by srossi5

My shop used 2.5 and it worked out fine no issues

But that means you just restricted the exhaust size from 2.75 to 2.5 inches. I certainly wouldn't be comfortable with that.

Whitemaro6 · 11-08-2016, 10:00 AM

Quote:

Originally Posted by Megahurtz

But that means you just restricted the exhaust size from 2.75 to 2.5 inches. I certainly wouldn't be comfortable with that.

Lol your worried about a straight thru 1/4 inch change over half a foot, maybe?? Its still a trillion miles better than the restriction the secondaries put on the system. Just do it and don't think about it. Its worth it.

KILLA BEE · 11-08-2016, 10:14 AM

I was just told that the aftermarket pipes only come in two and a half or 3 inches so they can't match the 2.75. I have NO ISSUES and It sounds crazy

KILLA BEE · 11-08-2016, 10:23 AM

https://youtu.be/PUuTmUQWEcA

Megahurtz · 11-08-2016, 10:55 AM

Quote:

Originally Posted by Whitemaro6

Lol your worried about a straight thru 1/4 inch change over half a foot, maybe?? Its still a trillion miles better than the restriction the secondaries put on the system. Just do it and don't think about it. Its worth it.

I 100% disagree with you.

KILLA BEE · 11-08-2016, 11:09 AM

Quote:

Originally Posted by Richard0nee

Sound clips?!

Yup look up two threads

2SSmurf · 11-21-2016, 08:08 AM

I suppose I won't be doing this mod because I simply have no idea who can do it

Mr. Grumpy · 11-21-2016, 09:34 AM

I'm in the same boat as you. I went to two different shops and they refuse to do it. I've tried the resonator approach but no luck so far.

SuperSound · 11-21-2016, 10:49 AM

Quote:

Originally Posted by Megahurtz

I 100% disagree with you.

Why is that?

KILLA BEE · 11-21-2016, 11:23 AM

Quote:

Originally Posted by Mr. Grumpy

I'm in the same boat as you. I went to two different shops and they refuse to do it. I've tried the resonator approach but no luck so far.

There is no way its not any CUSTOM EXHAUST shops in Chicago. Where are you looking. It can't be a major franchise shop, everyone has that "area" you can go to that doesnt give a shit long as you have the money. But do good work. I had the same problem but found a great one that does ANY AND EVERYTHING. Ask around.

pinoyscorpion951 · 11-21-2016, 11:42 AM

Keep looking. I live in California which has the most strict emissions laws in the country. The first 3 that I asked turned me down outright. I kept going from muffler shop to muffler shop until I found 3 others that said they would do it. First shop charged me $100 the first time I removed them. I had to have them welded back in because I helped SEMA Emissions Lab here in Diamond Bar test a performance part for CARB EO approval. After they were done testing, I had the secondaries removed again, different shop, only $80 the second time.

11-07-2016, 02:20 PM	#71
jaymsu Yeti's Daddy Drives: ATS-V, Prowler, M6 V10 Join Date: Jun 2015 Location: Ann Arbor, MI Posts: 1,011	What is pipe size everyone is using? 2SSmurf and I contacted a local shop, and they carry 2.5" or 3" pipes. They can order 2.75" (which I read somewhere here in this forum that the size of our pipe is 2.75") but it has to be 10' pipe purchase. Let me know what you guys used. Thanks. __________________ 2SS Nightfall Grey /Adrenaline red interior NPP / MRC / Nav / 6 Spd 1100: 7/27/15 <SSWNNN> 3000: 9/04/15 <TPW:10/19/15> 3800: 10/19/15 <VIN: 117740> 6000: 12/16/15

11-08-2016, 10:14 AM	#76
KILLA BEE Black lightning Drives: 2021 ZL1 1LE A10 Join Date: Mar 2013 Location: Nottingham Md Posts: 1,997 View My Garage	I was just told that the aftermarket pipes only come in two and a half or 3 inches so they can't match the 2.75. I have NO ISSUES and It sounds crazy __________________ [ 2021 Camaro ZLE 10 speed

11-08-2016, 10:23 AM	#77
KILLA BEE Black lightning Drives: 2021 ZL1 1LE A10 Join Date: Mar 2013 Location: Nottingham Md Posts: 1,997 View My Garage	Listen https://youtu.be/PUuTmUQWEcA __________________ [ 2021 Camaro ZLE 10 speed

11-21-2016, 09:34 AM	#81
Mr. Grumpy Car Enthusiast Drives: 2017 Camaro SS FIFTY Join Date: Jul 2016 Location: Naperville, IL Posts: 163	I'm in the same boat as you. I went to two different shops and they refuse to do it. I've tried the resonator approach but no luck so far. __________________ 2017 SS Camaro FIFTY 6MT, Nav, NPP, Black Bowties, Mishimoto OCC, Skip Shift Eliminator, GM Footwell Lighting, NGM Splash Guards, GM Blackout Tail Lights (SOLD)

11-07-2016, 08:50 PM	#73
srossi5 Drives: White 2016 camaro ss M6 npp Join Date: Jun 2016 Location: Johnston RI Posts: 88	My shop used 2.5 and it worked out fine no issues

11-21-2016, 08:08 AM	#80
2SSmurf Drives: 2017 Camaro 2SS Hyper Blue Metallic Join Date: Oct 2016 Location: Waterford, Michigan Posts: 56	I suppose I won't be doing this mod because I simply have no idea who can do it

11-21-2016, 11:42 AM	#84
pinoyscorpion951 Drives: 2016 Bright Yellow 2SS A8 Join Date: Jul 2014 Location: Rancho Cucamonga, California Posts: 610	Keep looking. I live in California which has the most strict emissions laws in the country. The first 3 that I asked turned me down outright. I kept going from muffler shop to muffler shop until I found 3 others that said they would do it. First shop charged me $100 the first time I removed them. I had to have them welded back in because I helped SEMA Emissions Lab here in Diamond Bar test a performance part for CARB EO approval. After they were done testing, I had the secondaries removed again, different shop, only $80 the second time.

User Name		Remember Me?
Password