flowmasters SUCK! 
Ditching a magnaflow for a flowmaster
Ditching a magnaflow for a flowmaster I'm looking at replacing my magnaflow muffler for a crossflow flowmaster. The magnaflow is way too tame for me. My last ls1 z28 had a hooker muffler on it also and it was way too quiet. I'd thought about doing a loudmouth, but i've got a cutout and it's too loud, so I can't see much difference between the two. Also, im getting longtubes soon, so it would sound like *** with the loudmouth. I've visited ls1sounds.com and listened to LS1s and for the price the flowmaster sounds good. While i'd like to go all out and get a borla or corsa, it's just not in my budget right now and the rest of the catback don't interest me. As far as the flow issue i've heard about flowmasters, i've got a cutout for the track and I really don't believe a muffler is that restrictive. All exhausts sound good online, but is the flowmaster going to be alot louder than the magnaflow?
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Joined: Jan 2006
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From: Philly
it'll definitely be louder than the magnaflow. about roughly twice the volume i'd say. you'll probably lose ~5-10 horsepower during the swap, so be warned. but you have a cutout that you can open for performance, so run the muffler you think sounds the best IMO.
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From: Vancouver,[KITSILANO].B.C. Canada *WestCoast*
I have a 5 year old flow/80 series and lt's and 3" ory with a qtec....sounds very good and LOUD..Can hear me from a ways away.......if u r worried about 5 hp then u should get something else...if you like old school-musclecar sound get a flow....90% of my friends i hang out with have old cars...half of them have straight through flows ...they like the sound of my car..very much..........................that's all folk's...
Last edited by NHRAMAN; Sep 12, 2006 at 05:54 PM.
Originally Posted by ChocoTaco369
it'll definitely be louder than the magnaflow. about roughly twice the volume i'd say. you'll probably lose ~5-10 horsepower during the swap, so be warned. but you have a cutout that you can open for performance, so run the muffler you think sounds the best IMO.
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LT's w/ORY and Magnaflow sound like ***.
If you want your **** to sound like a truck, go for it. It will sound better with the Flowmaster, and you will not lose any performance with the cutout open.
If you want your **** to sound like a truck, go for it. It will sound better with the Flowmaster, and you will not lose any performance with the cutout open.
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Originally Posted by Starz T/A 17
LT's will wake up the magnaflow ALOT, I had the same thing on my car and LOVE the LT's and magnaflow, I would wait till you get LT's and see what it sounds like
They do make the Magnaflow sound very beastly dude.
i run dual single chambers and they are realllly loud.
dont know if id run a flowmaster catback though. heard they suck yet there are alot of flowmaster bashing and I have yet to see a dyno sheet proving it. I would like to see one.
dont know if id run a flowmaster catback though. heard they suck yet there are alot of flowmaster bashing and I have yet to see a dyno sheet proving it. I would like to see one.
Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
Originally Posted by INMY01TA
I disagree completely. I had the Flowmaster 80 with headers and ory. My friend has Magniflow w/Jethots and ory. His car is louder and sounds better then mine did by far. Wait till you do the lts and see how you like it.