cat back

**pewter Z28** · 09-19-2010, 02:07 PM

ok i have a 2000 camaro z 28 automatic. it has k and n aftermarket air system,aftermarket t.b.,and jet mass air flow sensor . i am going to order my cat back system on the first of next month but cant decide whats better? slp loudmouth 2 or magnaflow please help me decide which is better power wise?

**pajeff02** · 09-19-2010, 02:46 PM

Originally Posted by pewter Z28

ok i have a 2000 camaro z 28 automatic. it has k and n aftermarket air system,aftermarket t.b.,and jet mass air flow sensor . i am going to order my cat back system on the first of next month but cant decide whats better? slp loudmouth 2 or magnaflow please help me decide which is better power wise?

Pretty much any catback is only going to get you 5-10 h.p. If you plan on LT's and an ORY down the road, the LM2 may be a bit raspy. I personally like the Magnaflow sound and went with that on our car. For those times when I want some "extra noise", I added an electric cutout.

**c5z28** · 09-19-2010, 03:08 PM

If it has to be between those two. Magnaflow

**molecularmann** · 09-19-2010, 07:18 PM

Magnaflow...

**chaosinfinite** · 09-22-2010, 10:00 AM

No one likes Borla?

**c5z28** · 09-22-2010, 10:18 AM

Originally Posted by chaosinfinite

No one likes Borla?

It wasn't one of the choices

**'02 WS6** · 09-22-2010, 10:42 AM

If power's your concern....

#1 Get the Loudmouth
#2 take the JET MAF off

**Tyler_LS1** · 09-22-2010, 11:04 AM

Magnaflow!

and +1 on ditching the JET MAF, put the stock one back on

**Faught** · 09-22-2010, 02:34 PM

magnaflow added 13 hp for me, borla is ok my step brothers 98 camaro sounded nice but only added 8hp, oh and +1 on taking the MAF off and put the stock one back on.
(hp based on avg. of 2 hp calculations)
if you want more power later on longtubes and a y pipe adds around 15-30 rwhp! hp. if ya want to attract cops, or want to scare every ricer who want to race you add a electric cutout between y-pipe and I or mid pipe. kinda have to turn the sound up on the vid. [ame]http://www.youtube.com/watch?v=P1qTbTn7LB4[/ame]

**Y2KPewterSS** · 09-22-2010, 03:33 PM

Originally Posted by pewter Z28

ok i have a 2000 camaro z 28 automatic. it has k and n aftermarket air system,aftermarket t.b.,and jet mass air flow sensor . i am going to order my cat back system on the first of next month but cant decide whats better? slp loudmouth 2 or magnaflow please help me decide which is better power wise?

Neither

**TmaxicanA** · 09-22-2010, 09:09 PM

magnaflow or dynamax!

**pewter Z28** · 09-23-2010, 09:38 AM

Whats wrong with jet mass air flow works fine

**Sweet Chops** · 09-23-2010, 09:55 AM

Originally Posted by pewter Z28

Whats wrong with jet mass air flow works fine

The question is, what is wrong with the stock MAF?

**pajeff02** · 09-23-2010, 09:57 AM

Originally Posted by pewter Z28

Whats wrong with jet mass air flow works fine

Have you logged your air-fuel ratio throughout the operating range? Chances are you'll find lean spots that can be traced back to the MAF.

**pewter Z28** · 09-23-2010, 10:04 AM

Originally Posted by sweet chops

the question is, what is wrong with the stock maf?

biggest problem is dont have car came with it sorry

**pewter Z28** · 09-23-2010, 10:05 AM

Originally Posted by pajeff02

have you logged your air-fuel ratio throughout the operating range? Chances are you'll find lean spots that can be traced back to the maf.

this is good to know and no i have not logged it thanks but will a vet mass air flow sensor work its almost same year

**pajeff02** · 09-23-2010, 10:14 AM

Originally Posted by pewter Z28

this is good to know and no i have not logged it thanks but will a vet mass air flow sensor work its almost same year

They probably have different part numbers and reporting characteristics. Not 100% on this though. I looked through an old MAF thread I posted last year, but it did not list the part numbers. The GM replacement MAF for our cars is now an 85mm unit with a plastic housing that is calibrated to report like a stock MAF.

**01_z28_atx** · 09-27-2010, 02:14 PM

Originally Posted by Faught

magnaflow added 13 hp for me, borla is ok my step brothers 98 camaro sounded nice but only added 8hp, oh and +1 on taking the MAF off and put the stock one back on.
(hp based on avg. of 2 hp calculations)
if you want more power later on longtubes and a y pipe adds around 15-30 rwhp! hp. if ya want to attract cops, or want to scare every ricer who want to race you add a electric cutout between y-pipe and I or mid pipe. kinda have to turn the sound up on the vid.

hell yeah dude!!!sounds awesome!!