I was thinking of which exhaust to get for my 99Z. My buddy knows someone with just a flow master 2 chamber muffler, and he said it sounds great. Im just woundering is if I did get the cat back, would I see any performance gains?

Thanks
Adam

 

I have the Flowmaster exhaust on my Z, and I love the sound. Also, I could feel a noticeable difference b/w stock and the Flowmaster power wise. For the price, I don't think it could be beat!

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1998 Z28. Artic White.

• SS hood
• Sport Appearance pkg.
• Ported, Polished MAFH
• Free ram air Mod.
• Flowmaster Exhaust
• Custom Stainless tips
• T-tops
• Fully loaded

 

BORLA

 

I've got a Flowmaster 80 on my T/A and I love the sound. It doesn't have the usual "Flowmaster Drone" on the interstate like some other cars I've driven.

My Flowmaster is loudest at about 2,300 - 2,500 RPM, which is higher than the usual drone at 2K (especially on a Mustang). With the M6 tranny, I'm nowhere near 2,500 RPM when cruising the interstate and it's nice and quiet.

Performance gains? No clue. I bought the car used and the Flowmaster was already installed, so I don't have a baseline dyno run to compare against.




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2001 TransAm WS6, M6 3.42
HPP, TBB, 160* t-stat, MTI Lid, Holley PowerShot, Flowmaster 80, Port/Polish MAF

2001 Z28
-- R.I.P. - 06/25/02

 

Loud Mouth, see other post about the Corsa and you'll see why.

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99 SS, Dark Metallic Blue, M6
SLP lid, KN, TBB, SLP Y-pipe, loudmouth
ported MAFs, Fernco,......
Currently: 1/4 13.30@114, 0-60 4.85 (w/passenger)

 

Dynomouth!
Sound clip in sig...
Dave

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• Dynomouth Exhaust!
• My 1998 M6
• Mesh Grille
• 71-74 Emblems
• Clear Corners
• My New Home Page
• mn55927@citlink.net

 

I've done the dynos on a Flowmaster muffler over a stock muffler. And the net gain on a Flowmaster is zip, nadda, nothing, not a damn thing.

If your goal is performance gains, Flowmaster is not the answer. Now for sound it's a different story. If you want a head turning sound, for not a whole lot of cash, you could do worse than a Flowmaster - but list it under your appearance mods, not your performance mods.

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'01 Mystic Teal Z28
A4/3.23/Leather/T-Tops
Mods List Here

12.38/110.72/1.74 60'
325 rwhp/341 rwtq
www.MysticZ28.com

NorCal LS1/LT1

"To play it safe is not to play"

[This message has been edited by V6toZ28 (edited July 24, 2002).]

 

Actually, a full Flowmaster catback only nets about 10hp. If you want performance, just add a cutout, to you flowmaster. With that you will have the performance you want, and trust me a very very noticable sound....Good Luck
Rockls1