Camaro LFX Exhaust - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

earcia66 · 03-30-2016, 07:35 PM

Does anyone know the size of the stock tubing for exhaust? I installed downpipes that are 2.5" and where its clamped makes a rattling noise

yzark99 · 03-30-2016, 07:43 PM

2.25" so you are 1/4" over.

earcia66 · 03-30-2016, 07:46 PM

Quote:

Originally Posted by yzark99

2.25" so you are 1/4" over.

I heard the SS is 2.5 do you think this will help with my issue?

VTSummit · 03-31-2016, 03:24 AM

Quote:

Originally Posted by earcia66

Does anyone know the size of the stock tubing for exhaust? I installed downpipes that are 2.5" and where its clamped makes a rattling noise

I was told (I haven't messed with my downpipes yet) that the exhaust is 2.5" until the stock H-pipe where it changes to 2.25"

derek1387 · 03-31-2016, 04:47 AM

Quote:

Originally Posted by VTSummit

I was told (I haven't messed with my downpipes yet) that the exhaust is 2.5" until the stock H-pipe where it changes to 2.25"

This is correct.

VTSummit · 03-31-2016, 06:49 PM

I like how mine sounds, but I think I'm going to get a used NPP from Calloway if they have any laying around next week.

ghosted · 03-31-2016, 07:14 PM

Just to add to those mentioning the correct sizing, the exhaust is 2.5" until just after the factory H-pipe, where it changes to 2.25".

ghosted · 03-31-2016, 10:30 PM

Quote:

Originally Posted by Sanjay Collins

Nice diagram, J! I can never find a good one.

Sent from my SM-N910P using Tapatalk

Took me forever to find it, then I had to edit it lol

KillboyPowerhead · 04-06-2016, 06:05 PM

Instead of making a new thread...

For those with the Magnaflow X-pipe: has anyone considered welding some 1/2" or 1" pipes in the X-pipe to give it a similar effect to a "fuse-pulled" NPP exhaust? So run a straight pipe from the inlets to the outlets of the X-pipe, welded at either end, so that most of the exhaust goes through the X-pipe (muffled) but some goes through the straight pipe (unmuffled).

Know what I mean? Potentially louder/more aggressive sounding? Terrible idea?

I recently bought the X-pipe (#11386) and am considering getting rid of the resonators and mufflers and going 2.5" pipe all the way back; just got this random idea while watching exhaust videos.

03-30-2016, 07:43 PM	#2
yzark99 I run 2 catch cans... Drives: 2012 1LT SIM Auto Join Date: Oct 2011 Location: OR there Posts: 1,038 View My Garage	2.25" so you are 1/4" over. __________________ Overkill tuned • Air Scoop • CAI • VMAX PTB • JacFab Laminator FX + Extendolator • SOLO Hi-Flo Cats + Cat-Back Exhaust View my top 3 LFX performance mods and more: .

03-31-2016, 06:49 PM	#6
VTSummit Consistently inconsistent Drives: 2015 2LT Summit White Join Date: May 2015 Location: United States Posts: 1,363	I like how mine sounds, but I think I'm going to get a used NPP from Calloway if they have any laying around next week. __________________ Thanks to MRR, I have some SWEET wheels! Thank you! 2015 2LT Ported TB, Ported intake, JACFAB intake spacer, Borla exhaust, IPF 91 tune, Complete 1/LE suspension, Brembo brakes, Goodridge lines, Elite catch can, CAI with Thermo-wrap, 275/40-20 x 10's all around, Z/28 spoiler, GM splitter, Alpine/Polk stereo with AudiControl interface.

03-31-2016, 07:14 PM	#7
ghosted BCS Auto Drives: 2015 Camaro 1LS Join Date: Dec 2015 Location: Phoenix, AZ Posts: 1,299 View My Garage	Just to add to those mentioning the correct sizing, the exhaust is 2.5" until just after the factory H-pipe, where it changes to 2.25". __________________ BCS Auto on Facebook - - - Follow me on Instagram @datv6tho & @officialbcsauto

03-30-2016, 07:35 PM	#1
earcia66 Drives: 2015 Camaro 2LS Join Date: Mar 2016 Location: Clovis CA Posts: 23	Camaro LFX Exhaust Does anyone know the size of the stock tubing for exhaust? I installed downpipes that are 2.5" and where its clamped makes a rattling noise

04-06-2016, 06:05 PM	#9
KillboyPowerhead Drives: 2015 Z/22 Join Date: Aug 2015 Location: Ontario, Canada Posts: 988	Instead of making a new thread... For those with the Magnaflow X-pipe: has anyone considered welding some 1/2" or 1" pipes in the X-pipe to give it a similar effect to a "fuse-pulled" NPP exhaust? So run a straight pipe from the inlets to the outlets of the X-pipe, welded at either end, so that most of the exhaust goes through the X-pipe (muffled) but some goes through the straight pipe (unmuffled). Know what I mean? Potentially louder/more aggressive sounding? Terrible idea? I recently bought the X-pipe (#11386) and am considering getting rid of the resonators and mufflers and going 2.5" pipe all the way back; just got this random idea while watching exhaust videos.