FLOWMASTER knock off? - S-10 Forum
 
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post #1 of 15 Old 04-12-2011, 03:29 PM Thread Starter
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Exclamation FLOWMASTER knock off?

ok guys, on my previous posts i have asked for a cheap nice sounding muffler for my 1994 chevy 2.2L s-10 and some of the peopl wanted me to make huge modifications when i only wanted a muffler suggestion. anyways i went out and asked different muffler shops for a cheap nice sounding muffler and these are the ones they mentioned

magnaflow- installed $125

Flowmaster- installed $100

Cherrybomb turbo- installed $70

Flowmaster (probably 40 series) - installed $60 . . . . <- sounds like a knock off flowmaster right?

does anyone know or have any experience with knock off flowmasters? do they last? are they bad? any insights please

2.25in off set muffler in and output and 2.25 piping with a 2.5in, input and 3in output chrome exhaust tip..... just trying to get my fix it ticket written off

Thanks guys

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post #2 of 15 Old 04-12-2011, 03:49 PM
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Re: FLOWMASTER knock off?

knock offs are just as good when you buy flowmaster your buying the name
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post #3 of 15 Old 04-12-2011, 04:01 PM
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Re: FLOWMASTER knock off?

Flowmasters sound like garbage on 4 bangers. I have a dumped Magnaflow and it sounds pretty good. Also look at Pypes brand mufflers

Also, stepping up to 2-1/2" pipe will have a deeper sound
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post #4 of 15 Old 04-12-2011, 08:19 PM
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Re: FLOWMASTER knock off?

My brother had flowmaster knocks offs on his drag truck (Flowkings). He eventually got some super 44s and guess what? They were identical! He never had problems with them. My other brother is also running knock offs on his car, no problems yet.

Personally I would go with magnaflow though. It is the quietest out of the bunch and flows the best. Can't go wrong with magnaflow.
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post #5 of 15 Old 04-13-2011, 12:03 AM
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Re: FLOWMASTER knock off?

im runnung a knock off flowmaster ,does great ,supusedly came from the same building as flowmaster, just no name stamped in it
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post #6 of 15 Old 04-13-2011, 03:36 AM
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Re: FLOWMASTER knock off?

thrush welded on mine......look like flowmaster and sound decent.
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post #7 of 15 Old 04-13-2011, 12:20 PM Thread Starter
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Re: FLOWMASTER knock off?

If anyone lives in california, do you guys know if the flowmaster 40 series on a 2.2 s10 is legal... under 95 decibels (dB)?
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post #8 of 15 Old 04-13-2011, 01:39 PM
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Re: FLOWMASTER knock off?

if your still running a cat, which I'm sure you are, you should be fine as far as noise goes,

2000 GMC Sonoma SLS
ECSB 2.2L Flex Fuel L43 bored 0.40, 0.20 head shave, 5-Speed, 4.10 gears, Space Blue Metallic, Graphite Int, OBX Header, straight pipe cat delete, Thrush Welded, urethane motor mounts, ZQ8 sway bars, Hurst Short Throw Shifter, ClutchMasters 9lbs flywheel

Other Rides: 09 Canyon 5.3 ZQ8, 05 Duramax, 85 Monte Carlo SS.
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post #9 of 15 Old 04-13-2011, 02:02 PM
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Re: FLOWMASTER knock off?

The patent for Flowmaster ran out a while back and they didn't renew it for some reason. All of a sudden, there were a ton of knock offs on the market. I'm pretty sure each knock off brand opened a Flow and copied it with a small change to make it just slightly different. I had one on a Ford Courier with a HOT 2.3 Ford engine in it, sounded pretty knarly.
The knock offs look almost identical to the Flowblaster.

S10 addiction: (1)'82 S10, 383, 700R4, Shorty,
(2) '85 S10, 3.4, 700R4 4x4 stretch cab (Redneck Truck), (3) '90 S10 2.5, 5 speed shorty,
(4) '91 S10, Built 3.4, 5 speed shorty (Voodoo Truck), (5) '92 S10, 2.5, 5 speed shorty, (Barbie Truck),
(6) '83 S10, 327, TH 350, shorty (13.00 best),
(7) '92 S10, 2.5 5 speed, Shorty,
(8) 1979 LUV, Buick 3.8 V6, TH 350 Shorty.
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post #10 of 15 Old 04-13-2011, 04:10 PM Thread Starter
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Re: FLOWMASTER knock off?

ok i just got it done . . its much quieter but i wish i would get a little more sound out of it.. . how can i post pictures here so i can show before after?

link to before video --->
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post #11 of 15 Old 04-13-2011, 04:10 PM Thread Starter
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Re: FLOWMASTER knock off?

deleted duplicate post

Last edited by 1994ricers-10; 04-13-2011 at 04:13 PM. Reason: i dont know how to delete duplicate posts i made in accident
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post #12 of 15 Old 04-13-2011, 04:10 PM Thread Starter
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Re: FLOWMASTER knock off?

ok i just got it done . . its much quieter but i wish i would get a little more sound out of it.. . how can i post pictures here so i can show before after?

link to before video --->
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post #13 of 15 Old 04-13-2011, 04:11 PM Thread Starter
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Re: FLOWMASTER knock off?

ok i just got it done . . its much quieter but i wish i would get a little more sound out of it.. . how can i post pictures here so i can show before after?


link to before video --->
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post #14 of 15 Old 04-13-2011, 04:11 PM Thread Starter
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Re: FLOWMASTER knock off?

ok i just got it done . . its much quieter but i wish i would get a little more sound out of it.. . how can i post pictures here so i can show before after?


link to before video --->
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post #15 of 15 Old 04-13-2011, 04:11 PM Thread Starter
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Re: FLOWMASTER knock off?

ok i just got it done . . its much quieter but i wish i would get a little more sound out of it.. . how can i post pictures here so i can show before after?


link to before video --->
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