Can a Corsa cat back and k+n air filter cause a slow down?? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

riverbadboy · 12-13-2009, 07:44 PM

After the dealer installed the corsa cat back exhaust P/N 14951 the 1SS M6 seemed slower. It did sound bitchin though. I guess what i'm getting at is the dealer did some recall stuff and i don't really know if they did a reprogram or what but it might just be my immagination? any ideas? should i get some kind of reprogrammer to make up for exhaust upgrade?

Badassbird · 12-13-2009, 08:16 PM

This is almost certainly in the tune. If this install were to throw your trims off and cause some knock retard, then yes you may be seeing that situation. This is not all that common though. I highly recommend a custom tune, you will see a much better result in HP,MPG and driveability. I have seen a loss with some of these hand held tuners BTW.

MoranoRacing · 12-13-2009, 08:34 PM

When I install parts I like to reset the computer by disconecting the battery for around 10 minutes. That way the computer is reset and it can learn the new mods. Perhaps try that if you'd like.

I predator tuner also works great when you add an exhaust or cold air intake.

Good Luck!

*mlee* · 12-13-2009, 08:42 PM

You should see basiclly no change... This car learns these type mods very quickly.

Tune will kill your warranty, but possibly the battery cable or 5/20 fuse pull may insure you are on the correct octane table.

2SSRS@Gen5diy · 12-13-2009, 10:53 PM

Hi as we see on TAGs car after you take the back pressure out the car run fat so you will lose some power, By the way i am up in fort Mohave all the time hope to see you soon.

Badassbird · 12-14-2009, 07:24 AM

Wow you guys are having issues with warranties and tuning? That sucks. We dont have that issue around here. The dealers nearest to us are very forgiving and have great relationships with our customers. We had a GTO with open headers and giant cam go in for a broken rear end and they didnt even ask any questions. Also with a good tuner, you can save your factory tune. Then IF something were to ever happen you could flash back to stock and go.

JANNETTYRACING · 12-14-2009, 08:20 AM

Quote:

Originally Posted by riverbadboy

After the dealer installed the corsa cat back exhaust P/N 14951 the 1SS M6 seemed slower. It did sound bitchin though. I guess what i'm getting at is the dealer did some recall stuff and i don't really know if they did a reprogram or what but it might just be my immagination? any ideas? should i get some kind of reprogrammer to make up for exhaust upgrade?

More than likely they reprogrammed the computer with the newest tune that addresses wheel hop, that means there is even more torque management than you went in with.

I can send you a predator or Trinity and solve that problem Easy.

*mlee* · 12-14-2009, 08:35 AM

Quote:

Originally Posted by 2SSRS

Hi as we see on TAGs car after you take the back pressure out the car run fat so you will lose some power, By the way i am up in fort Mohave all the time hope to see you soon.

He has a catback... still has stock manifolds / cats and a Corsa resonator. TAGS is a different animal...

Quote:

Originally Posted by JANNETTYRACING

More than likely they reprogrammed the computer with the newest tune that addresses wheel hop, that means there is even more torque management than you went in with.

I can send you a predator or Trinity and solve that problem Easy.

If he got that update then he's probably got the new OS not yet supported by Diablo, but coming soon I'm sure...

2010 SSRS · 12-14-2009, 09:21 AM

Diablo time

riverbadboy · 12-14-2009, 03:59 PM

yes i do appriciate the help guys as i'm new to ls motor tuning. Funny, but running it more, the better it seems to run?? Could it be learning as it runs ? and yes we will prob see each other 2SSRS

JANNETTYRACING · 12-14-2009, 04:13 PM

Quote:

Originally Posted by riverbadboy

yes i do appriciate the help guys as i'm new to ls motor tuning. Funny, but running it more, the better it seems to run?? Could it be learning as it runs ? and yes we will prob see each other 2SSRS

It will not learn out torque management, and torque management make it feel soft.

Tuning is your only solution at this point.

Ted.

12-13-2009, 07:44 PM	#1
riverbadboy riverbadboy Drives: 1SS Silver with Black rally Stripes Join Date: Nov 2009 Location: Laughlin, NV. Posts: 23 View My Garage	Can a Corsa cat back and k+n air filter cause a slow down?? After the dealer installed the corsa cat back exhaust P/N 14951 the 1SS M6 seemed slower. It did sound bitchin though. I guess what i'm getting at is the dealer did some recall stuff and i don't really know if they did a reprogram or what but it might just be my immagination? any ideas? should i get some kind of reprogrammer to make up for exhaust upgrade?

12-13-2009, 08:16 PM	#2
Badassbird LSX Tuner at Cincy Speed Drives: 1988 GTA Trans Am Join Date: Nov 2009 Location: Franklin,OH Posts: 67	This is almost certainly in the tune. If this install were to throw your trims off and cause some knock retard, then yes you may be seeing that situation. This is not all that common though. I highly recommend a custom tune, you will see a much better result in HP,MPG and driveability. I have seen a loss with some of these hand held tuners BTW. __________________ Tracey Scott Lead GM Tech and Tuner -Cincy Speed 513-821-2221

12-13-2009, 08:42 PM	#4
mlee CamaroFans.com Drives: ZLE & ZR2 Join Date: Oct 2008 Location: Conroe, TX Posts: 37,500 View My Garage	You should see basiclly no change... This car learns these type mods very quickly. Tune will kill your warranty, but possibly the battery cable or 5/20 fuse pull may insure you are on the correct octane table. __________________

12-14-2009, 07:24 AM	#6
Badassbird LSX Tuner at Cincy Speed Drives: 1988 GTA Trans Am Join Date: Nov 2009 Location: Franklin,OH Posts: 67	Wow you guys are having issues with warranties and tuning? That sucks. We dont have that issue around here. The dealers nearest to us are very forgiving and have great relationships with our customers. We had a GTO with open headers and giant cam go in for a broken rear end and they didnt even ask any questions. Also with a good tuner, you can save your factory tune. Then IF something were to ever happen you could flash back to stock and go. __________________ Tracey Scott Lead GM Tech and Tuner -Cincy Speed 513-821-2221 Last edited by Badassbird; 12-14-2009 at 07:26 AM. Reason: Typo

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
magnaflow 3" comp series cat back	GQ4Life	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	32	01-20-2010 01:57 PM
L/T with off road pipes or a good cat back ??	LSU/LS3	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	4	10-19-2009 09:12 PM
? about Cat back vs Ax back vs Muffler	SS-screamer	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	4	10-01-2009 08:42 PM
question on install: GMPP cat back exhaust	detroitboy	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	2	04-04-2009 12:52 PM
Is aftermarket exhaust really cat back?	CDBiker220	5th Gen Camaro SS LS LT General Discussions	8	02-20-2009 02:08 PM

12-13-2009, 08:34 PM	#3
MoranoRacing Account Suspended Drives: 2005 GTO, 1973 Camaro Join Date: Aug 2009 Location: Westchester Posts: 460	When I install parts I like to reset the computer by disconecting the battery for around 10 minutes. That way the computer is reset and it can learn the new mods. Perhaps try that if you'd like. I predator tuner also works great when you add an exhaust or cold air intake. Good Luck!

12-13-2009, 10:53 PM	#5
2SSRS@Gen5diy Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova Join Date: Oct 2008 Location: By the lake in AZ Posts: 15,719 View My Garage	Hi as we see on TAGs car after you take the back pressure out the car run fat so you will lose some power, By the way i am up in fort Mohave all the time hope to see you soon.

12-14-2009, 09:21 AM	#9
2010 SSRS Drives: 3 V8 Camaros Join Date: May 2009 Location: The Ocean State Posts: 111,187 View My Garage	Diablo time

12-14-2009, 03:59 PM	#10
riverbadboy riverbadboy Drives: 1SS Silver with Black rally Stripes Join Date: Nov 2009 Location: Laughlin, NV. Posts: 23 View My Garage	yes i do appriciate the help guys as i'm new to ls motor tuning. Funny, but running it more, the better it seems to run?? Could it be learning as it runs ? and yes we will prob see each other 2SSRS