HP gain from ditching my flowmaster 80 series? - LS1LT1 Forum : LT1, LS1, Camaro, Firebird, Trans Am, Engine Tech Forums

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Old 03-18-2009, 10:50 PM   #1
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Question HP gain from ditching my flowmaster 80 series?

thinking about deleting my flowmaster and getting something else? Muffler wise that is
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94 Z28 A4 55K
CAI, Shorty Headers, 2.75" Y-Pipes, 3" Cat Delete Pipe, 3" Cat Back, UMI Strut Brace, 2000 Stall TC, Alum DS, 3.73's, Front Brake Upgrade, TTS Datamaster, TunerCat, Custom Tuned PCM By Me & Solomon!
283HP&305TQ RWHP, Before tuning
309HP&361TQ RWHP, After PCM Custom tuned
+20% pwr loss A4=370HP&433TQ(FWHP)
NOT BAD HUH?
IT'S ALL IN THE PCM TUNING!!!!1


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-94 Z28 A4 (project car!)
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Old 03-18-2009, 11:07 PM   #2
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Might see a few hp up top in rpm's, but its not going to be a night and day difference.

Do you mind if its loud or do you want something that sounds nice?
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Old 03-18-2009, 11:08 PM   #3
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i got a bullet dumped behind the bumper and i love it haha
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Old 03-18-2009, 11:12 PM   #4
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cream your pants LOUD!


Quote:
Originally Posted by 95Z View Post
Might see a few hp up top in rpm's, but its not going to be a night and day difference.

Do you mind if its loud or do you want something that sounds nice?
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94 Z28 A4 55K
CAI, Shorty Headers, 2.75" Y-Pipes, 3" Cat Delete Pipe, 3" Cat Back, UMI Strut Brace, 2000 Stall TC, Alum DS, 3.73's, Front Brake Upgrade, TTS Datamaster, TunerCat, Custom Tuned PCM By Me & Solomon!
283HP&305TQ RWHP, Before tuning
309HP&361TQ RWHP, After PCM Custom tuned
+20% pwr loss A4=370HP&433TQ(FWHP)
NOT BAD HUH?
IT'S ALL IN THE PCM TUNING!!!!1


Previous Z28'S
-94 Z28 A4 (project car!)
-02 Z28 M6 (sold)
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Old 03-18-2009, 11:22 PM   #5
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http://vids.myspace.com/index.cfm?fu...ideoid=6733452

that is what it sounds like with a lt4 hot cam
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Old 03-18-2009, 11:44 PM   #6
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prob see about 4-5hp especially in the top end, if your just replacing the muffler, maganflow is a great performing muffler
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Old 03-18-2009, 11:52 PM   #7
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what about replacing it with a stright pipe no muffler? would it sound like shit?


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Originally Posted by 31camaro View Post
prob see about 4-5hp especially in the top end, if your just replacing the muffler, maganflow is a great performing muffler
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94 Z28 A4 55K
CAI, Shorty Headers, 2.75" Y-Pipes, 3" Cat Delete Pipe, 3" Cat Back, UMI Strut Brace, 2000 Stall TC, Alum DS, 3.73's, Front Brake Upgrade, TTS Datamaster, TunerCat, Custom Tuned PCM By Me & Solomon!
283HP&305TQ RWHP, Before tuning
309HP&361TQ RWHP, After PCM Custom tuned
+20% pwr loss A4=370HP&433TQ(FWHP)
NOT BAD HUH?
IT'S ALL IN THE PCM TUNING!!!!1


Previous Z28'S
-94 Z28 A4 (project car!)
-02 Z28 M6 (sold)
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Old 03-18-2009, 11:58 PM   #8
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it really doesnt sound that good. the bullet is basically a straight pipe that takes away the shitty sounding part. Its really as loud as you can get without sounding like shit
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Old 03-19-2009, 12:06 AM   #9
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Quote:
Originally Posted by MY94ZZZ View Post
what about replacing it with a stright pipe no muffler? would it sound like shit?
it would be raspy, you could delete the stock muffler, and put a borla xr-2 muffler on the i-pipe, kinda like the slp loudmouth catback
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Old 03-19-2009, 12:21 AM   #10
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did my video work?
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1995 trans am M6, Pacesetter LTS, lt4KM, Moroso CAI, STB, Hurst short throw, and some drilled slotted rotors with new pads all the way around :p
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Old 03-19-2009, 12:39 AM   #11
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i dont know i am at work and my work blocks out myspace


Quote:
Originally Posted by jbridwelltransam View Post
did my video work?
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94 Z28 A4 55K
CAI, Shorty Headers, 2.75" Y-Pipes, 3" Cat Delete Pipe, 3" Cat Back, UMI Strut Brace, 2000 Stall TC, Alum DS, 3.73's, Front Brake Upgrade, TTS Datamaster, TunerCat, Custom Tuned PCM By Me & Solomon!
283HP&305TQ RWHP, Before tuning
309HP&361TQ RWHP, After PCM Custom tuned
+20% pwr loss A4=370HP&433TQ(FWHP)
NOT BAD HUH?
IT'S ALL IN THE PCM TUNING!!!!1


Previous Z28'S
-94 Z28 A4 (project car!)
-02 Z28 M6 (sold)
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Old 03-19-2009, 12:41 AM   #12
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i think you will like the sound
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Old 03-19-2009, 12:45 AM   #13
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i'll check it out when i get home.


Quote:
Originally Posted by jbridwelltransam View Post
i think you will like the sound
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94 Z28 A4 55K
CAI, Shorty Headers, 2.75" Y-Pipes, 3" Cat Delete Pipe, 3" Cat Back, UMI Strut Brace, 2000 Stall TC, Alum DS, 3.73's, Front Brake Upgrade, TTS Datamaster, TunerCat, Custom Tuned PCM By Me & Solomon!
283HP&305TQ RWHP, Before tuning
309HP&361TQ RWHP, After PCM Custom tuned
+20% pwr loss A4=370HP&433TQ(FWHP)
NOT BAD HUH?
IT'S ALL IN THE PCM TUNING!!!!1


Previous Z28'S
-94 Z28 A4 (project car!)
-02 Z28 M6 (sold)
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Old 03-19-2009, 12:53 AM   #14
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okey dokey
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Old 03-19-2009, 06:21 PM   #15
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I had an 80 series on Berlinetta #1 for years. I got tired of the interior noise last year and took it out for a Magnaflow single 3" in/out. The car picked up a consistent tenth in the quarter. That's about a 6-10 HP gain.

And, it's quieter in the car now, and still has a nice throaty sound to it.
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