You are browsing camaro5 
 |
|
04-08-2021, 04:21 PM
|
#1 |
 Drives: 2016 Chevy Camaro 2SS Join Date: Sep 2020
Location: Flagler beach, Florida
Posts: 214
|
How to get rid of rasp
Hi guys I have a 2014 camaro lt with the npp exhaust. I put ARH catless downpipes in but it’s very raspy between 2000 and 3000 rpms. I was wondering if I should take the stock resonator out and put a x pipe or resonated x pipe in? Give me your thoughts and ideas of what I should do. Thank you.
|
|
|
|
04-08-2021, 07:42 PM
|
#2 |
  Drives: 2015 Z/22 Join Date: Aug 2015
Location: Ontario, Canada
Posts: 931
|
A resonated x-pipe would help reduce rasp/high-pitch frequencies but would also quiet the exhaust a bit; resonators also help reduce rasp by cancelling out high-frequency sounds waves so I'd leave those on.
Do you run the exhaust with the flaps always open (by pulling the fuse)? If so I wonder if reinstalling the fuse might help, if the flaps stay closed around that RPM (not sure, just guessing). But this would of course be less fun than having the valves always open 
__________________
Overkill/Self Tuned; Mace Camshafts; K&N Typhoon Cold Air Intake; Ported 80mm Throttle Body/Intake Manifolds/Manifold Spacer; Solo Performance High-Flow Cats, Cat-back Exhaust; Vitesse Motorsports Throttle Controller; Elite Engineering E2 Catch Can; BC Racing BR Coilovers; JPSS Delrin Radius Rod Bushing Inserts, Sway Bars; Pegasus Aluminum Rear Cradle Bushings, Camber/Caster Plates; Z/28 Toe Links, Trailing Arms, Upper Control Arm Bushings, Rear Shock Mounts
|
|
|
|
|
04-09-2021, 03:32 PM
|
#3 |
|
Drives: 2016 Chevy Camaro 2SS Join Date: Sep 2020
Location: Flagler beach, Florida
Posts: 214
|
Yea I did the fuse pull. But I put it back in to see if it would help but it was way worse. So immediately pulled the fuse again. I’m really trying to decide to just do resonated or non resonated.
|
|
|
|
|
04-09-2021, 04:06 PM
|
#4 |
 Drives: 2014 Camaro 2SS Join Date: Feb 2015
Location: Metro Detroit
Posts: 492
|
I have the same setup you do. I've also considered going to the muffler shop and having them weld in some resonators. But I don't know if that would give me the results I'm looking for.
|
|
|
|
|
04-10-2021, 12:24 PM
|
#5 |
 
Drives: 13 Camaro 2SS/RS LS3 Join Date: May 2020
Location: Miami
Posts: 104
|
My understanding is that being catless adds to the raspiness. I’m catless as well but I enjoy it
__________________
K&N Intake/ Pray Ported TB/ GPI Rod-Mod Intake Manifold/ GPI Ported Heads/ GPI SS3 Cam/ TSP 1-7/8" LTH to NPP/ Z/28 Diff/ Hendrix Offset Bushings/ BMR Delrin Cradle Bushings/ Pedders 27/32mm Sway Bars/ 1LE Shocks & Struts/ BMR 1.25 Springs/ Mishimoto Catch Can
|
|
|
|
|
04-18-2021, 10:57 PM
|
#6 |
|
Onyx_Z7 <— Instagram
Drives: 2013 2ss 1le Join Date: Aug 2014
Location: Delaware
Posts: 634
|
J pipes
|
|
|
|
|
04-19-2021, 11:07 AM
|
#7 |
Drives: 2012 IOM 2LT RS A6 w/ BA Join Date: Apr 2013
Location: Central Valley, Ca
Posts: 123
|
I second the J Pipes.
__________________
ToDones -
Apex Scoop & Washer Relocate - CAI cai - Elite CC - Elite Clean Side Separator - MRT v1 Axle Back customized w/ J-Pipes - Black Out Headlight/Tail Light - Black Out BowTies - Black Out 'camaro' - Black Out Brake Light Chrome Bezel - JL Audio XD400/4 - Sub Thump Sub Box 2 DVC 10"s - HIFONICS ZEUS 1000.1 Escort Redline - VIOFO Dash Cam - Continental Extreme Contact Tires Gary's Customs ZL1 Front Bumper, ZL1 Rockers, & ZL1 Spoiler - Paint matched IOM OverKill 80mm T-body - JacFab Ported Intake Manifold - JacFab Extendolator 3/4" Spacer ToDos - Tune? |
|
|
|
|
04-19-2021, 11:09 AM
|
#8 |
|
Drives: 2016 Chevy Camaro 2SS Join Date: Sep 2020
Location: Flagler beach, Florida
Posts: 214
|
Where do the j pipes go. I’m also wondering in the npp exhaust resonator If there is a loose weld or something broken that is causing it.
|
|
|
|
|
05-11-2021, 02:06 PM
|
#9 |
 Drives: 2012 CAMARO 1LT/RS Join Date: Mar 2021
Location: Pixley,Ca
Posts: 4
|
What fuse are u guys talking about I here alot about it but don't know which fuse it is?
|
|
|
|
|
05-29-2021, 09:23 AM
|
#10 |
Drives: 1966 Chevelle Join Date: Oct 2013
Location: Northern California
Posts: 141
|
I didn’t realize J pipes would combat raspiness. I thought J pipes were to combat drone. Anyone with real experience? My LFX is raspy and I’d like to “tone” it down.
__________________
66 Chevelle with 2013 LFX V6, 6 speed auto, full Hotchkis suspension, Wilwood 4 wheel discs.
|
|
|
|
|
06-01-2021, 11:12 AM
|
#11 |
|
Drives: 2012 IOM 2LT RS A6 w/ BA Join Date: Apr 2013
Location: Central Valley, Ca
Posts: 123
|
The J-Pipes I tried to follow are in this post.
http://www.camaro5.com/forums/showth...light=helmoltz
__________________
ToDones -
Apex Scoop & Washer Relocate - CAI cai - Elite CC - Elite Clean Side Separator - MRT v1 Axle Back customized w/ J-Pipes - Black Out Headlight/Tail Light - Black Out BowTies - Black Out 'camaro' - Black Out Brake Light Chrome Bezel - JL Audio XD400/4 - Sub Thump Sub Box 2 DVC 10"s - HIFONICS ZEUS 1000.1 Escort Redline - VIOFO Dash Cam - Continental Extreme Contact Tires Gary's Customs ZL1 Front Bumper, ZL1 Rockers, & ZL1 Spoiler - Paint matched IOM OverKill 80mm T-body - JacFab Ported Intake Manifold - JacFab Extendolator 3/4" Spacer ToDos - Tune? |
|
|
|
|
06-01-2021, 09:08 PM
|
#12 | |
|
Drives: 1966 Chevelle Join Date: Oct 2013
Location: Northern California
Posts: 141
|
Quote:
Did the J pipes you added eliminate the raspy sound or the drone or both? Hopefully both because J pipes would be a relatively inexpensive fix if it really helped with the raspy sound.
__________________
66 Chevelle with 2013 LFX V6, 6 speed auto, full Hotchkis suspension, Wilwood 4 wheel discs.
|
|
|
|
|
|
06-02-2021, 10:30 AM
|
#13 |
|
Drives: 2012 IOM 2LT RS A6 w/ BA Join Date: Apr 2013
Location: Central Valley, Ca
Posts: 123
|
I went from stock to MRT 1 and J pipes, I am uncertain of the rasp you are referring to. BUT, might still be worth a try. Others discuss the x pipe to work on rasp. Last option is back to mufflers. lol
Good Luck
__________________
ToDones -
Apex Scoop & Washer Relocate - CAI cai - Elite CC - Elite Clean Side Separator - MRT v1 Axle Back customized w/ J-Pipes - Black Out Headlight/Tail Light - Black Out BowTies - Black Out 'camaro' - Black Out Brake Light Chrome Bezel - JL Audio XD400/4 - Sub Thump Sub Box 2 DVC 10"s - HIFONICS ZEUS 1000.1 Escort Redline - VIOFO Dash Cam - Continental Extreme Contact Tires Gary's Customs ZL1 Front Bumper, ZL1 Rockers, & ZL1 Spoiler - Paint matched IOM OverKill 80mm T-body - JacFab Ported Intake Manifold - JacFab Extendolator 3/4" Spacer ToDos - Tune? |
|
|
|
|
06-04-2021, 04:31 AM
|
#14 |
|
having FUN now 13.66@101
|
Magnaflow resonated X pipe in place of the H pipe will take care of the RASP. That is what many of us used after installing headers. I know you don't have headers, and cannot add them. but if you are looking to control RASP, the X pipe is your best solution.
__________________
|
|
|
|
|
|
|
|
 |
|
|
