High flow Converter question? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Dosin · 04-21-2011, 02:51 PM

I have a 2010 L99 with catback MBRP 3 inch exhaust. I tried doing some research about high flow catalytic converters. I don't know much about them and need "schooling" on them. The whole point of me wanting them is to make my car a bit louder. I don't want headers because I don't want to void the warranty. Any suggested threads for me to read? Will high flow converters make much difference on sound or is it a waste of money? Thanks for the help.

lexlueger · 04-21-2011, 03:01 PM

High flow cats won't make that much of a difference in the sound. You already modified the exhaust system..so if the dealer wanted to be a di** about, if there was a problem exhaust related they could still void you on that anyway.
They have to prove the aftermarket part contributed to the problem in question.

Pollock · 04-21-2011, 03:44 PM

Quote:

Originally Posted by lexlueger

High flow cats won't make that much of a difference in the sound. You already modified the exhaust system..so if the dealer wanted to be a di** about, if there was a problem exhaust related they could still void you on that anyway.
They have to prove the aftermarket part contributed to the problem in question.

I guess you have a point but my dealer told me a cat back system was fine just don't touch the cats or exhaust manifolds to keep my warranty.

HulkSS · 04-21-2011, 05:56 PM

My dealer told me I was fine as long as I didn't touch the computer, i.e. tune, thats why I went with cats instead of long tubes. My car was quite a bit louder with the cats, I have the SOLO ones. Still on stock cat back until tommorow when my flowmaster gets here.

Dosin · 04-21-2011, 10:54 PM

This is my problem. One person tells me it won't make much of a difference and the next person tells me it is quite a bit louder. I would not be interested unless it did make a noticeable difference in sound. Maybe I should have done a muffler delete. Oh well. 1k exhaust already installed.

blk96gt · 04-22-2011, 02:36 AM

I don't know why lexlueger said it won't make a difference in sound. Mine was a good bit louder after I added my Solo hi-flo cats.

Mud · 04-22-2011, 03:06 AM

Just being louder does not always make for a good tone. It is the quality and tone of the exhaust that one needs to look for. For the street anyway.

I can see your frustration. I listened to a lot of different combinations at Camarofest. So I'm starting with some SLP II's and after that, I'm thinking about some long tube headers.

Good luck with your cats.

blk96gt · 04-22-2011, 08:05 PM

I should have said that other than making it louder it greatly improved the tone. Even my wife thought it sounded much better without making it obnoxiously loud.

bmbbl be · 04-22-2011, 08:38 PM

high flow cats =louder exhaust plus about 15hp.....solo did a dyno test when theres came out

Padre · 04-22-2011, 08:51 PM

Mine is noticebly different sound, hard to say louder or not. I gained 2mph in the 1/4-mile, which equates to about 20hp.

Padre

AzTeK · 04-22-2011, 09:00 PM

High flow cats do make the car a bit louder on idle and when you rev it i would say about 5x louder then stock plus good performance wise as well. JBA or SOLO are both great.

1FAST SS · 04-22-2011, 09:46 PM

I have a set of DT headers and a borla s-type catback ordered, but haven't made up my mind on which hi flow cats to order. Either Solo or JBA, but really don't know if Solo is $200 better than JBA. Anyone have any bad experinces with the JBA hi flow cats?

Padre · 04-22-2011, 10:05 PM

Quote:

Originally Posted by Mickeyroar

I have a set of DT headers and a borla s-type catback ordered, but haven't made up my mind on which hi flow cats to order. Either Solo or JBA, but really don't know if Solo is $200 better than JBA. Anyone have any bad experinces with the JBA hi flow cats?

Mine are JBA. 2mph in the 1/4 and about 0.15 ET gain. Worth it, in my book. I'll be adding the JBA shorties next to see if that makes a difference.

Padre

KARBON · 04-23-2011, 07:28 AM

Me and a friend have the exact same car's, L99's. We both put MBRP catback 3" only at first but he ended up puting high flow cats and his car is quite a bit louder than mine and has a deeper tone !

04-21-2011, 02:51 PM	#1
Dosin Drives: 2010 2SS RS black ground effects Join Date: Oct 2010 Location: St. Louis MO/Quincy IL Posts: 175	High flow Converter question? I have a 2010 L99 with catback MBRP 3 inch exhaust. I tried doing some research about high flow catalytic converters. I don't know much about them and need "schooling" on them. The whole point of me wanting them is to make my car a bit louder. I don't want headers because I don't want to void the warranty. Any suggested threads for me to read? Will high flow converters make much difference on sound or is it a waste of money? Thanks for the help.

04-21-2011, 03:01 PM	#2
lexlueger Drives: V10 BMW M5, Supercharged 2SS/RS Join Date: Jun 2010 Location: Charlotte NC /Brooklyn NY Posts: 2,305	High flow cats won't make that much of a difference in the sound. You already modified the exhaust system..so if the dealer wanted to be a di about, if there was a problem exhaust** related they could still void you on that anyway. They have to prove the aftermarket part contributed to the problem in question. __________________ MAST 416 STROKER: STAGE 3 TVS 2300 CUSTOM CAM TPIS 102 TB IW 8 RIB PULLEY W/ OD COG REARS NX EXPRESS/NANO KIT KDI HEAT EXCHANGER/ROTOFAB RESERVOIR CIRCLE D 2800 TC/FLEX PLATE/ADM TRANS COOLER DSS DRIVESHAFT/1400 HP AXLES EATON TRUETRAC -LPE 3.27 GEARS DYNATECH HEADERS/MAGNAFLOW EXHAUST SQUASH RETURN STYLE FS ID 850's E85/ FLEXFUEL BMR/EIBACH SUSPENSION KILL MODE, ON.

04-22-2011, 03:06 AM	#7
Mud In Mud We Trust Drives: 2010 Camaro 2SS/RS LS3 Join Date: Mar 2011 Location: 'murica Posts: 545	Just being louder does not always make for a good tone. It is the quality and tone of the exhaust that one needs to look for. For the street anyway. I can see your frustration. I listened to a lot of different combinations at Camarofest. So I'm starting with some SLP II's and after that, I'm thinking about some long tube headers. Good luck with your cats. __________________ __________________ 2010 2SS/RS, LS3 -Hurst Shifter -American Racing Torq Thrust/Anthracite -CAI Intake

04-22-2011, 08:51 PM	#10
Padre Only drives on Sundays Drives: '16 2SS A8 NPP MRC NGray Join Date: Feb 2011 Location: Dalton, GA Posts: 2,500 View My Garage	Mine is noticebly different sound, hard to say louder or not. I gained 2mph in the 1/4-mile, which equates to about 20hp. Padre __________________ OLD HOTNESS: The "Heretic": '11 2SS/RS L99 A6 Black/Inferno. Build Journal, Videos D1SC GT9 JBA-LT = 720/680 \| 10.330 @ 133.61, 1.546 sixty... Camaro King at ECS V, Darlington. NEW HOTNESS: '16 2SS A8 NPP MRC. Bone Stock, 1/8th: 8.051 @ 89.44, 1.919

04-22-2011, 09:46 PM	#12
1FAST SS Drives: 2011 Camaro SS Join Date: Nov 2010 Location: Greeley, CO Posts: 769	I have a set of DT headers and a borla s-type catback ordered, but haven't made up my mind on which hi flow cats to order. Either Solo or JBA, but really don't know if Solo is $200 better than JBA. Anyone have any bad experinces with the JBA hi flow cats? __________________ 2011 Camaro SS Synergy Green CAI Cold Air Induction, ADM Race Scoop, Apex Washer Bottle Kit, Vengeance Racing Kaotic Cam, DOD/VVT delete and LS3 conversion, American Racing LT Headers, American Racing Headers Off Road pipes, Borla S-Type Catback, FTI Billet Triple Disk 3600 rpm Torque Converter, DSS Aluminium Drive Shaft, AAC Plasma DRL's, Showstopper LED Sidemarkers,Carbon FIber Bow Ties, 35% Window Tint, Llyod's Floor Mats, JBL MS-8 Sound Processor, 2 Alpine PDX-1.600, Alpine PDX-4.100, JL Audio C5-650, JL Audio C5-650x, Alpine T10 Type R Shallow Mount, Stinger Dry Cell Battery

04-21-2011, 05:56 PM	#4
HulkSS Drives: 2011 RS/SS SGM Join Date: Sep 2010 Location: South Pekin,IL Posts: 67 View My Garage	My dealer told me I was fine as long as I didn't touch the computer, i.e. tune, thats why I went with cats instead of long tubes. My car was quite a bit louder with the cats, I have the SOLO ones. Still on stock cat back until tommorow when my flowmaster gets here.

04-21-2011, 10:54 PM	#5
Dosin Drives: 2010 2SS RS black ground effects Join Date: Oct 2010 Location: St. Louis MO/Quincy IL Posts: 175	This is my problem. One person tells me it won't make much of a difference and the next person tells me it is quite a bit louder. I would not be interested unless it did make a noticeable difference in sound. Maybe I should have done a muffler delete. Oh well. 1k exhaust already installed.

04-22-2011, 02:36 AM	#6
blk96gt Drives: 11 SS(sold),96 Mustang,12 Silverado Join Date: Dec 2010 Location: Houston, Tx Posts: 105	I don't know why lexlueger said it won't make a difference in sound. Mine was a good bit louder after I added my Solo hi-flo cats.

04-22-2011, 08:05 PM	#8
blk96gt Drives: 11 SS(sold),96 Mustang,12 Silverado Join Date: Dec 2010 Location: Houston, Tx Posts: 105	I should have said that other than making it louder it greatly improved the tone. Even my wife thought it sounded much better without making it obnoxiously loud.

04-22-2011, 08:38 PM	#9
bmbbl be Drives: 2010 CAMARO SS Join Date: Apr 2010 Location: ohio Posts: 1,360	high flow cats =louder exhaust plus about 15hp.....solo did a dyno test when theres came out

04-22-2011, 09:00 PM	#11
AzTeK Drives: 2011 Camaro SS Join Date: Aug 2010 Location: RGV, Texas Posts: 77	High flow cats do make the car a bit louder on idle and when you rev it i would say about 5x louder then stock plus good performance wise as well. JBA or SOLO are both great.

04-23-2011, 07:28 AM	#14
KARBON Drives: 2010 CAMARO 850 RWHP/733 RWTQ Join Date: Sep 2010 Location: Lafayette,LA Posts: 300 View My Garage	Me and a friend have the exact same car's, L99's. We both put MBRP catback 3" only at first but he ended up puting high flow cats and his car is quite a bit louder than mine and has a deeper tone !

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