I have an 87 pontiac 305 firebird that has a flowmaster 80 series muffler with a 3" exhaust system that was installed last summer. The muffler is too loud and I want something that is like O.E (quiet)at idle and cruise, but a monster at WOT. Also looking to only spend $40-50 or less. Do you anything that will fit my buget, I was thinking of the Dynomax super turbo but not sure. Also I would like to keep the dual exhaust look!!!

Thanks,
RPettway

 

anybody?

 

How do u mean too loud?? Is it loud at idle also?? Is it muscular sounding or what??

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Looking For:

87 IROC-Z 350 TPI
84 TRANS AM 305 H.O.

 

Borla is great, but good luck finding one that cheap. They are stainless so a used one should be ok.

goodluck


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*I do custom performance mods on Edlebrock Performer carburetors (dualplane intake mods in the works),
White 1986 Irocz, 305/383 with Edlebrock Performer-RPM intake and Performer #1407 carburetor, +110hp shot of crack, 700R-4 tranny, 3.25:1 rear, Mcreary Road-Stars, SLP-stainless 1.75" shortie headers & Y-pipe, single 3" Borla exhaust, Linginfelter-TPI camshaft part number 74216 pulls 17" vacuum solid. Cam specs 213/219 @.050 114-LSA, .462/.470 lift @1.5:1 ratio. MSD-6AL, billet distributor, multi-retard, blaster-3 coil, and RPM switch.
N/A runs 10.9 @124,
Crack-runs 10.3 @135
haven't run at track since Oct-99

 

Dynomax Super turbo cat back will do the trick for you.

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Black 89 IROC...Mods: 355, 10.5:1 comp, Big Solid Crower Cam, TFS heads, Victor Jr, Holley, and a 5 spd...

 

Too loud? Is this possible?

 

A friend of mine tried the dynomax muffler and liked it... though the rest of us thought it sounded really odd. The dynomax didn't last long here and quickly rusted away after one illinois winter.
just letting you know ahead of time.

good luck again

 

Too Loud?????? thats not possible. sorry.

 

i had a super turbo on my z28. sounded great at wot but was nice and quiet at idle or while crusing. i got rid of it when i got my borla system. now i have no cats and an open borla system it is loud all the time just like i like it.

 

Put a stock one back on to make it sound wimpy. Is that what you want?

Pete

 

I agree, loud and muscular is better.

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Looking For:

87 IROC-Z 350 TPI
84 TRANS AM 305 H.O.

 

I have an 80 series Flowmaster in my IROC. Now I know why people refer to it as blowmaster. It doesn't have enough growl and bark. I sure hope that 3" intermediate pipe I plan on getting makes it sound nice. BTW, it does sound good at WOT.

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'88 IROC 305 TPI
Crappy 700R4 slushbox
Gutted airboxes
180 degree T-stat
Advanced base TPS voltage
Relocated IAT sensor
Momo steering wheel (gotta luv it)
Ram-air setup coming soon
Flowmaster muffler (puke)
Taylor SpiroPro wires
Accel cap and rotor
Ported plenum
Kills: '94 Z28, Olds Aurora V8, bunch of Mustangs, T-birds, ricers, and others who assumed a 12 year-old car would be too slow.