New exhaust setup in progress - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

silverstorm · 06-14-2018, 02:06 PM

I got some NPP mufflers at a cheap price today from a local guy that took them off his 1LE. I currently have a muffle delete which doesn't annoy me but it's starting to get old. Anyone know where I can get a rear bumper for quad tips besides the dealership? Also should I replace the H-pipe for a X-pipe?

Yellow Bullet · 06-14-2018, 02:34 PM

The diffuser can be received online, idk about the x-pipe.

bingster223 · 06-14-2018, 03:03 PM

I have factory npp on a 15 1LT RS I took off the h pipe and resonators and put an X pipe in. Then made a mild to wild switch to control the flaps. I love it. Look on Summit Racing, Phaseteck, GM PARTS GUY and ebay and others for the rear diffuser. I've seen them from $150 up to $1,500 there's more than 1 style also. ZL1, Z28, not sure what they're all named.

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Yellow Bullet · 06-14-2018, 03:47 PM

1le diffuser is the cheapest, Zl1 is 2nd (1le diffuser with heat shields), and Z28 is a different design and $$$

DSX_Camaro · 06-14-2018, 06:25 PM

Yes. Remove the resonators and stock H and add the Magnaflow 11386.

22829477 is the part number you need for the diffuser. It's $140 on gmpartsdirect.

I also recommend grabbing the NPP in a box, and maybe the brake booster line for the V6 with NPP so you have an easy way to pull vacuum.

silverstorm · 07-23-2018, 09:02 PM

Bringing this back up since I'm hoping to get the mufflers on sometime this week. Got a quote from one shop for $275 to install an x-pipe and npp mufflers. Another had told me about $600 for double x-pipe, mufflers, and changing the exhaust up to 2.5" if I remember correctly. What should I really add with the NPP mufflers?

DSX_Camaro · 07-23-2018, 09:15 PM

I'd do the Magnaflow 11386 x muffler in place of the H and run actual 2.5" pipe to the NPP mufflers.

rozarioorlan · 07-23-2018, 11:50 PM

Throw on the Magnaflow Resonated X Pipe #11386 in place of stock H pipe. I believe you need the NPP in a box for your mufflers to work properly. I’m not too sure if the piping near the mufflers on the 1LE are 2.5”, but I’d just stick with the stock size. The $275 deal is all you need for a nice setup.

06-14-2018, 02:34 PM	#2
Yellow Bullet Drives: 2017 Chevy Sonic RS 1.4T Join Date: Sep 2017 Location: Riverview, Florida Posts: 327	The diffuser can be received online, idk about the x-pipe. __________________ 2015 Camaro RS/SS SIM LS3- Sold 2017 Sonic Mosaic Black RS 1.4T

06-14-2018, 03:47 PM	#4
Yellow Bullet Drives: 2017 Chevy Sonic RS 1.4T Join Date: Sep 2017 Location: Riverview, Florida Posts: 327	1le diffuser is the cheapest, Zl1 is 2nd (1le diffuser with heat shields), and Z28 is a different design and $$$ __________________ 2015 Camaro RS/SS SIM LS3- Sold 2017 Sonic Mosaic Black RS 1.4T

06-14-2018, 06:25 PM	#5
DSX_Camaro Drives: 2013 SW 2LT/RS LFX/AY6 Join Date: Feb 2013 Location: Orlando, FL Posts: 1,741	Yes. Remove the resonators and stock H and add the Magnaflow 11386. 22829477 is the part number you need for the diffuser. It's $140 on gmpartsdirect. I also recommend grabbing the NPP in a box, and maybe the brake booster line for the V6 with NPP so you have an easy way to pull vacuum. __________________ K&N CAI, 1LE Strut Tower Brace, Elite Engineering Catch Can and Clean Side Separator, Apex Scoop w/ Washer Relocation Kit, CTS Front Calipers and Rotors, JacFab Ported Intake Manifold, JacFab Intake Manifold Spacer, 80mm Overkill Throttle Body, SS Brake Lines, Ideal Garage Master Cylinder, Monster Twin Disc Clutch, NPP Retrofit w/ Magnaflow Resonated X, ARH Catless Downpipes, JRE Built 3.45 Diff, 1LE Axles, 1LE Hubs, Overkill Tuned, BMR Anti Wheel-hop Kit Stage I, ACS TL1 Hood Insert, ZL1 Spoiler

07-23-2018, 09:15 PM	#7
DSX_Camaro Drives: 2013 SW 2LT/RS LFX/AY6 Join Date: Feb 2013 Location: Orlando, FL Posts: 1,741	I'd do the Magnaflow 11386 x muffler in place of the H and run actual 2.5" pipe to the NPP mufflers. __________________ K&N CAI, 1LE Strut Tower Brace, Elite Engineering Catch Can and Clean Side Separator, Apex Scoop w/ Washer Relocation Kit, CTS Front Calipers and Rotors, JacFab Ported Intake Manifold, JacFab Intake Manifold Spacer, 80mm Overkill Throttle Body, SS Brake Lines, Ideal Garage Master Cylinder, Monster Twin Disc Clutch, NPP Retrofit w/ Magnaflow Resonated X, ARH Catless Downpipes, JRE Built 3.45 Diff, 1LE Axles, 1LE Hubs, Overkill Tuned, BMR Anti Wheel-hop Kit Stage I, ACS TL1 Hood Insert, ZL1 Spoiler

07-23-2018, 11:50 PM	#8
rozarioorlan Drives: 2013 Camaro 2LS Join Date: Oct 2015 Location: Las Vegas Posts: 277	Throw on the Magnaflow Resonated X Pipe #11386 in place of stock H pipe. I believe you need the NPP in a box for your mufflers to work properly. I’m not too sure if the piping near the mufflers on the 1LE are 2.5”, but I’d just stick with the stock size. The $275 deal is all you need for a nice setup. __________________ 2013 2LS - K&N CAI, Overkill Ported 80mm Throttle Body, Overkill E85 Kit and Overkill Tune, Jacfab Ported Intake Manifold and Spacer, Stealth 3.0 TC, ARH Catted Downpipes, Magnaflow Resonated X-Pipe, Resonator Delete, Jones Full Boar Racing Mufflers, BMR 1.2" Lowering Springs, Elite Engineering Catch Can and Clean Side Seperator

06-14-2018, 02:06 PM	#1
silverstorm Drives: 2014 Camaro 2LS Join Date: Mar 2018 Location: Nashville, TN Posts: 213 View My Garage	New exhaust setup in progress I got some NPP mufflers at a cheap price today from a local guy that took them off his 1LE. I currently have a muffle delete which doesn't annoy me but it's starting to get old. Anyone know where I can get a rear bumper for quad tips besides the dealership? Also should I replace the H-pipe for a X-pipe?

06-14-2018, 03:03 PM	#3
bingster223 Drives: 2015 1LT/RS hot red/black Join Date: Apr 2016 Location: PA Posts: 201	I have factory npp on a 15 1LT RS I took off the h pipe and resonators and put an X pipe in. Then made a mild to wild switch to control the flaps. I love it. Look on Summit Racing, Phaseteck, GM PARTS GUY and ebay and others for the rear diffuser. I've seen them from $150 up to $1,500 there's more than 1 style also. ZL1, Z28, not sure what they're all named. Sent from my SM-G955U using Tapatalk

07-23-2018, 09:02 PM	#6
silverstorm Drives: 2014 Camaro 2LS Join Date: Mar 2018 Location: Nashville, TN Posts: 213 View My Garage	Bringing this back up since I'm hoping to get the mufflers on sometime this week. Got a quote from one shop for $275 to install an x-pipe and npp mufflers. Another had told me about $600 for double x-pipe, mufflers, and changing the exhaust up to 2.5" if I remember correctly. What should I really add with the NPP mufflers?