Survey Results

3rd Gen

Bob Hartley, NC	GM stock muffler
	Input (in.) 2.25	Output (in.) 2.25	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? no	Do you have a CAT? yes
	0 hp increase	What was the overall value? poor	Would you buy it again? no
	Describe the sound: wheezy, avg, soft_at_idle, gurgly
Andrew Choset , NY	Flowmaster catback
	Input (in.) 3	Output (in.) 2.5	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? no	Do you have a CAT? yes
	7-10 hp increase	What was the overall value? high7-10	Would you buy it again? yes
	Describe the sound: very_loud, loud_at_WOT, mean
Greg Westphal, MD	Dynomax Super Turbo catback
	Input (in.) 3	Output (in.) 2.5	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? no	Do you have a CAT? yes
	10 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: loud, soft_at_idle, loud_at_WOT, mellow, throaty
Andris Skulte/ Skulte Performance Designs , NY	SLP catback
	Input (in.) 3	Output (in.) 2.5	Output type: Single side/double pipe (2 total exits)
	Ease of installation? med	Was welding req'd? no	Do you have a CAT? no
	10 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: loud, loud_at_WOT
Daniel Burk , MI	Flowmaster dual-exhaust tips muffler
	Input (in.) 2.75	Output (in.) 2.5	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? yes	Do you have a CAT? yes
	10 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: avg, loud_at_WOT, resonant, >4000RPM=NASCAR sound
Greg Franks , USA	Flowmaster Force II catback
	Input (in.) 3	Output (in.) 3	Output type: Single side/single pipe
	Ease of installation? easy	Was welding req'd? no	Do you have a CAT? yes
	????? hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: soft_at_idle, loud_at_WOT, mean, throaty, Kinda hollow
Mauro Giambruno, Los Angeles, CA	Edelbrock 3" Flange 2.?? Dual Exits catback
	Input (in.) 3	Output (in.) 2.25	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? no	Do you have a CAT? no
	?? hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: very_loud, loud_at_WOT, Gained 3/10 consistently in the 1/4 with the above set up and tes hedders
Gordan Dobyns ,VA	MAC catback
	Input (in.) 3	Output (in.) 2.5	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? yes	Do you have a CAT? yes
	?? hp increase	What was the overall value? med	Would you buy it again? no
	Describe the sound: mellow, deep, resonant
Jeff Fox , MD	Dynomax Ultraflo catback
	Input (in.) 3	Output (in.) 3	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? no	Do you have a CAT? yes
	10 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: soft_at_idle, mellow, throaty
Sean Matte, MI	Dynomax Super Turbo catback
	Input (in.) 2.5	Output (in.) 2.25	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? no	Do you have a CAT? yes
	10 hp increase	What was the overall value? med	Would you buy it again? yes
	Describe the sound: soft_at_idle, mellow, little louder than factory
Steve Scott , OH	Dynomax 3" Dual outlet catback
	Input (in.) 3	Output (in.) 2.5	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? easy	Was welding req'd? no	Do you have a CAT? yes
	5 hp increase	What was the overall value? med	Would you buy it again? no
	Describe the sound: avg, deep
Ryan Wozney , Can	MAC single cat-back dual 2.5 resonated tips catback
	Input (in.) 3	Output (in.) 2.5	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? easy	Was welding req'd? no	Do you have a CAT? no
	10-15 hp increase	What was the overall value? med	Would you buy it again? yes
	Describe the sound: avg, mean, deep, throaty, Tips look AWESOME, especially on 85-92 T/A's.
George Beauchesne , CA	Banks catback
	Input (in.) 3	Output (in.) 2.5	Output type: Single side/double pipe (2 total exits)
	Ease of installation? med	Was welding req'd? no	Do you have a CAT? yes
	15 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: deep, Quiet at cruise, Awesome sound
Darrell Cude , TX	Warlock muffler
	Input (in.) 2	Output (in.) 3	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? NA	Do you have a CAT? yes
	10? hp increase	What was the overall value? med	Would you buy it again? no
	Describe the sound: loud, mean, impressive to the ladies
Mike , FL	custom built :-) catback
	Input (in.) 2.5	Output (in.) 0	Output type: Both sides/double pipe (4 total exits)
	Ease of installation? NA	Was welding req'd? yes	Do you have a CAT? yes
	20 hp increase	What was the overall value? med	Would you buy it again? no
	Describe the sound: loud, loud_at_WOT, mean, deep, resonant, No muffler. the intermediate pipe splits over the axle and runs to two dual-tip Ansa resonators... Mean at idle.. Almost sounds like I have a cam
Mark Pikas , MD	stock -- ! (no) muffler
	Input (in.) 2.75	Output (in.) 2.75	Output type: Single side/single pipe
	Ease of installation? easy	Was welding req'd? yes	Do you have a CAT? yes
	15-20 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: very_loud, loud_at_WOT,deep, throaty, worth .2 or so in the 1/4
Mark Pikas , MD	custom catback
	Input (in.) 3	Output (in.) 3	Output type: Single side/single pipe
	Ease of installation? easy	Was welding req'd? yes	Do you have a CAT? yes
	15-20 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: loud, soft_at_idle, loud_at_WOT, mellow, deep, throaty, no muffler, dual high flow cats, headers... sounds like I've got a lot more ci or a cam.
Jon Fedock, NC	Super Turbo Muffler
	Input (in.) 2.5	Output (in.) 2.5	Output type: Single Side/Single Pipe
	Ease of installation? NA	Was welding req'd? yes	Do you have a CAT? yes
	?? hp increase	What was the overall value? med	Would you buy it again? yes
	Describe the sound: average volume, mellow
Andrew Gunnesch, MI	Flowmaster Force II catback
	Input (in.) 3	Output (in.) 3	Output type: Single side/single pipe
	Ease of installation? NA	Was welding req'd? yes	Do you have a CAT? yes
	5 hp increase	What was the overall value? med	Would you buy it again? no
	Describe the sound: throaty
adam panke , ont	throughway catback
	Input (in.) 2	Output (in.) 3	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? med	Was welding req'd? yes	Do you have a CAT? no
	11 hp increase	What was the overall value? med	Would you buy it again? yes
	Describe the sound: loud, mean, deep, booming
Patrick , nj	Flowmaster catback
	Input (in.) 3	Output (in.) 3	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? yes	Do you have a CAT? yes
	bought car w/exhaust hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: average volume,soft_at_idle, loud_at_WOT,throaty
Isaac Davison , IL	Flowmaster turbo ? muffler
	Input (in.)	Output (in.)	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? no	Do you have a CAT? yes
	15 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: very_loud, loud_at_WOT, mean, deep, throaty, booming, gurgly, resonant, I don't know a ton about it. It was on there when I bought it. The car has a 350 TPI that makes 330 hp. I believe the Flowmaster really helps with the breathing. I would definitely buy it again. I live in DuQuoin, IL. Home of the Street Machine Nationals. The car has been out there since 95. Out of all the high performance cars I have been around, I have never heard anyone of them sound like this mine. Awesome!! That's the word that describes it best.
J. Ryan Sandner , NY	FLOWMASTER 3 CHAMBER muffler
	Input (in.) 2.75	Output (in.) 2.5	Output type: Single side/double pipe (2 total exits)
	Ease of installation? easy	Was welding req'd? yes	Do you have a CAT?
	? hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: loud_at_WOT, mean, deep, throaty
Bob Cotell ,MA	SLP Stainless Steel catback
	Input (in.) 3.0	Output (in.) 2.5	Output type: Single side/double pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? no	Do you have a CAT? no
	10 hp increase	What was the overall value? med	Would you buy it again? yes
	Describe the sound: loud, loud_at_WOT, mean, throaty, Sets off alarms everywhere!
ANDREW FECHT , PA	HOOKER AEROCHAMBER catback
	Input (in.) 3"	Output (in.) 2 1/2"	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? easy	Was welding req'd? no	Do you have a CAT? yes
	15 hp increase	What was the overall value? med	Would you buy it again? yes
	Describe the sound: very_loud, mean, deep, throaty,headers and high flow cat contribute
Tom Jacobsen , NJ	Edelbrock catback
	Input (in.) 3	Output (in.) 2.5	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? easy	Was welding req'd? no	Do you have a CAT? yes
	5 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: loud_at_WOT, deep, throaty, resonant, has awesome rumble at cruise speeds, sets off most alarms with a snap of the throttle
Chiao Liu , IL	flowmaster muffler
	Input (in.) 3	Output (in.) 2 1/2	Output type: Both sides/double pipe (4 total exits)
	Ease of installation? easy	Was welding req'd? yes	Do you have a CAT? yes
	hp increase	What was the overall value? med	Would you buy it again? yes
	Describe the sound: loud, loud_at_WOT, mellow, mean, deep, throaty
Trevor Jace , can	Stock catback
	Input (in.) 2 1/4	Output (in.) 2 1/4	Output type: Single side/double pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? no	Do you have a CAT? no
	hp increase	What was the overall value?	Would you buy it again?
	Describe the sound: throaty
Jaime Luna , us	edelbrock tes catback
	Input (in.) 3	Output (in.) 2 1/2?	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? easy	Was welding req'd? no	Do you have a CAT? yes
	35 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: deep,throaty
Denny,	Dynomax catback
	Input (in.) 3	Output (in.) 2.5	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? yes	Do you have a CAT? yes
	10 hp increase	What was the overall value? high	Would you buy it again?
	Describe the sound: deep, throaty, resonates at certain RPMs
Justin Smyth ,WV	custom true duals
	Input (in.)	Output (in.)	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? yes	Do you have a CAT? yes
	0 hp increase	What was the overall value? med	Would you buy it again? yes
	Describe the sound: very_loud, loud_at_WOT, mean, deep, booming, This system sounds GREAT!!! My wimpy 305 could easily be confused with a big block. Intimidates mustangs and turns every head.
Eric Sendrow , NY	Flowmaster crossflow muffler only
	Input (in.) 2.5 to 3	Output (in.) 2.5	Output type: Both sides/double pipe (4 total exits)
	Ease of installation? easy	Was welding req'd? no	Do you have a CAT? yes
	5 hp increase	What was the overall value? med	Would you buy it again? no
	Describe the sound: very_loud, loud_at_WOT, mean, deep, throaty, One of the best sounds I have heard, but freer flowing setups do exist
Shawn Slocum , NJ	Flow Master catback
	Input (in.) 3	Output (in.) 3	Output type: Single side/single pipe
	Ease of installation? easy	Was welding req'd? no	Do you have a CAT? no
	25 hp increase	What was the overall value? med	Would you buy it again? yes
	Describe the sound: deep, throaty,
jason+thorn , Fl	flowmaster 3 chamber crossflow catback
	Input (in.) 2.5	Output (in.) 3	Output type: Single side/double pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? yes	Do you have a CAT? no
	10-12 hp increase	What was the overall value? med	Would you buy it again? yes
	Describe the sound: loud_at_WOT, mean, deep, throaty,
Ryan deJong , nc	Flowmaster muffler
	Input (in.) 3	Output (in.) 3	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? yes	Do you have a CAT? no
	10 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: loud, deep,throaty, I also have headers which makes an even sweeter sound
Dan , ms	dynomax/flowmaster catback
	Input (in.) 3	Output (in.) 2.5	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? hard	Was welding req'd? yes	Do you have a CAT? no
	15 hp increase	What was the overall value? high	Would you buy it again? no
	Describe the sound: loud,soft_at_idle, resonant,DYNOMAX INT. PIPE, FLOWMASTER MUFFLER
Jay Rauch , ca	Meanstreak muffler
	Input (in.) 3	Output (in.) 3	Output type: Single side/double pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? yes	Do you have a CAT? yes
	8-10 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: very_loud, mean, resonant, along with the muffler, I had a 3" cat put on
Sean ,	SLP 86 iroc-z catback
	Input (in.) 3	Output (in.) 2.5	Output type: Single side/double pipe (2 total exits)
	Ease of installation? easy	Was welding req'd? no	Do you have a CAT? yes
	20 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: loud, loud_at_WOT, mean, throaty
Brent Goodwin , NC	Flowmaster 80 Series catback
	Input (in.) 3.00	Output (in.) 3.00	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? med	Was welding req'd? no	Do you have a CAT? yes
	25-30 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: very_loud, loud_at_WOT, mean, throaty, gurgly, resonant, Gives you headaches while cruising at 3000 rpm
Hugo Garcia , TX	Flowmaster catback
	Input (in.) 3in	Output (in.) 3in	Output type: Both sides/double pipe (4 total exits)
	Ease of installation? med	Was welding req'd? yes	Do you have a CAT? no
	60 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: deep
Paul Hoster , NJ	Hooker Aerochamber catback
	Input (in.) 3	Output (in.) 2 1/2	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? easy	Was welding req'd? no	Do you have a CAT? no
	10 hp increase	What was the overall value? med	Would you buy it again? no
	Describe the sound: average volume, soft_at_idle, loud_at_WOT, mean, deep, throaty, same volume as stock but with a more agressive tone, quiet at idle but the harder you're into it, the louder it gets
Ben Reagan , TX	Flowmaster American Thunder catback
	Input (in.) 3	Output (in.) 2 1/2	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? easy	Was welding req'd? no	Do you have a CAT? yes
	15 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: loud, loud at throttle, deep, throaty, and aggressive
Andrew Hayes , sc	Flowmaster muffler
	Input (in.) 3	Output (in.) 2.75	Output type: Single side/double pipe (2 total exits)
	Ease of installation? med	Was welding req'd? no	Do you have a CAT? yes
	hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: average volume,soft_at_idle,loud_at_WOT, deep
Marcos Solorio , PR	HOOKER SUPER COM. muffler
	Input (in.) 3	Output (in.) 3	Output type: Single side/double pipe (2 total exits)
	Ease of installation? easy	Was welding req'd? no	Do you have a CAT? no
	15 hp increase	What was the overall value? med	Would you buy it again? yes
	Describe the sound: very_loud
Joe Jandura , Il	Pacesetter TFX performance catback
	Input (in.) 3	Output (in.) 2.5	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? easy	Was welding req'd? no	Do you have a CAT?
	5-10 hp increase	What was the overall value? high	Would you buy it again? no
	Describe the sound: quiet, soft_at_idle, mellow, Not as I expected
gavin, OH	flowmaster 80 series crossflow
	Input (in.) 3"	Output (in.) 2.5"	Output type: th sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? no	Do you have a CAT? no
	hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: very_loud, loud_at_WOT, mean, throaty, resonant, mac headers,y pipe, no cat and magnum 280 cam contribute. almost nascar like. awesome.
tom , or	dynomax super turbo muffler
	Input (in.)	Output (in.) 3	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? no	Do you have a CAT? yes
	10 hp increase	What was the overall value? med	Would you buy it again? yes
	Describe the sound: soft_at_idle, deep, throaty, prob. would go w/ cat now depend on $. but was afordable
Michael , AL	Flowmaster 40 series muffler
	Input (in.) 2.5	Output (in.) 2.5	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? med	Was welding req'd? yes	Do you have a CAT? yes
	20 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: loud, very_loud, loud_at_WOT, mellow, deep, throaty, resonant
Andy Kirk , can	flowmaster catback
	Input (in.) 3	Output (in.) 2.5	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? easy	Was welding req'd? no	Do you have a CAT? yes
	15 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: soft_at_idle, loud_at_WOT, mean, booming
,	catback
	Input (in.)	Output (in.)	Output type: Both sides/single pipe (2 total exits)
	Ease of installation?	Was welding req'd?	Do you have a CAT?
	hp increase	What was the overall value?	Would you buy it again?
	Describe the sound: average volume,loud, soft_at_idle, deep, gurgly
Richard , SC	Flowmaster catback
	Input (in.) 3	Output (in.) 2.75	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? easy	Was welding req'd? yes	Do you have a CAT? yes
	10 hp increase	What was the overall value? med	Would you buy it again? no
	Describe the sound: very_loud, loud_at_WOT, deep, throaty

4th Gen

ghjhgj , CA	3.4 rs base muffler
	Input (in.)	Output (in.)	Output type: Both sides/single pipe (2 total exits)
	Ease of installation?	Was welding req'd?	Do you have a CAT?
	hp increase	What was the overall value? poor	Would you buy it again? no
	Describe the sound: wimpy
dennis , ma	borla adjustable catback
	Input (in.) 3	Output (in.) 3	Output type: Both sides double pipe (4 total exits)
	Ease of installation? med	Was welding req'd? no	Do you have a CAT? yes
	hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: very_loud, loud_at_WOT, mean, deep, throaty, gurgly,
Matt Davis , KY	Flowmaster Force II Cat-back
	Input (in.) 3.5	Output (in.) 2.5	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? med	Was welding req'd? yes	Do you have a CAT? yes
	15 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: loud, throaty
mike w , tx	slp ss/take-off dual outlet muffler
	Input (in.) 3"	Output (in.) 3"	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? easy	Was welding req'd? no	Do you have a CAT? yes
	10 hp increase	What was the overall value? med	Would you buy it again? no
	Describe the sound: loud, loud_at_WOT, Adds high frequency overtones, resonant, ricey @ WOT

1st Gen

Bill Holmquist ,CA	flowmaster muffler
	Input (in.) 3"	Output (in.) 2-1/2"	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? yes	Do you have a CAT? no
	50 hp increase	What was the overall value? high	Would you buy it again? yes
	Describe the sound: very_loud, loud_at_WOT, resonant, Had Hooker supercomp 3-1/2" collectors. Running a pumped Olds 455, approx. 450hp with Exhaust system
Bill Holmquist , CA	flowmaster muffler
	Input (in.) 2-1/8"	Output (in.) 2-1/8"	Output type: Both sides/single pipe (2 total exits)
	Ease of installation? NA	Was welding req'd? yes	Do you have a CAT? no
	20 hp increase	What was the overall value? med	Would you buy it again? no
	Describe the sound: loud,throaty, running Olds "WX" factory hi-po manifolds. Lost a lot of power wehn downsizing. Had to downsize due to low ground clearance with headers: less than 3"

2nd Gen

Flowmaster 40 series 2 chamber muffler
Input (in.) 2.5	Output (in.) 2.5	Output type: Both sides/single pipe (2 total exits)
Ease of installation? med	Was welding req'd? no	Do you have a CAT? no
15 hp increase	What was the overall value? high	Would you buy it again? yes
Describe the sound: very_loud, loud_at_WOT, mean, throaty, gurgly, install was rather easy except for when the sledge hammer missed and slammed my buddies shin!!

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