flow master muffler
#5
Drive it like u stole it
Join Date: Jan 2003
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You might pay less initially, but how much are you going to save when it blows out in a month or two and you've got to replace it?
Go with RB quality, that way you've only gotta pay for it once. I've got header to straight pipe to RB muffler, and the damn thing is quiet!
Go with RB quality, that way you've only gotta pay for it once. I've got header to straight pipe to RB muffler, and the damn thing is quiet!
#7
I've got a 40-series Flowmaster I'm using as a "presilencer" and I HATE it! Don't waste your money trying to patch together some home-made job like I did, just spend a few more bucks up front... it'll save you a headache later.
Flowmasters are designed to make piston engines sound big and throaghty (misspelled, I know) and the result on a rotary engine is an idle that sounds like a Cessna and a tin-can like metallic note throughout the rest of the rev range. On top of it all, because they're designed to resonate the sound like a big block Chevy, you end up with this annoying high-pitched tunning fork like noise at idle as well... that's my experience anyway. I can't wait to put a full RB setup on it like I should have done all along!
-Kennet
Flowmasters are designed to make piston engines sound big and throaghty (misspelled, I know) and the result on a rotary engine is an idle that sounds like a Cessna and a tin-can like metallic note throughout the rest of the rev range. On top of it all, because they're designed to resonate the sound like a big block Chevy, you end up with this annoying high-pitched tunning fork like noise at idle as well... that's my experience anyway. I can't wait to put a full RB setup on it like I should have done all along!
-Kennet
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#8
Blood, Sweat and Rotors
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I had a straight-thru magnaflow 6" round, 18" long 2.5" pipe on my blue rx7 below for 1.5 year of street driving and did roughly 12 weekends of track time shifting @ 8800rpms. Never blew out. Never changed it's note. Sounded real good and revvvvvvvvved.
flowmasters sound like **** and don't muffle very well. tin can, exactly.
flowmasters sound like **** and don't muffle very well. tin can, exactly.
#9
Burning Oil-Grinding 3rd
I tried a magnaflow on my SP 12A last week and it did not help quiet it any more then the very cheep Raptor that was on it before. the shop wanted 50 for the magnaflow or 25 for a new Raptor. I put the Raptor on. It is still way to loud for me. The magnaflow is about 100 at jegs so I am just going to save a bit more and get a RB one. The RB for a 79 is 230.
#10
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Originally posted by eddierotary
those mufflers are too loud for rotary, you should get a magnaflow muffler like directfreak's, they are pretty quiet
those mufflers are too loud for rotary, you should get a magnaflow muffler like directfreak's, they are pretty quiet
#12
Burning Oil-Grinding 3rd
Originally posted by DriveFast7
Hades12, what model and size magnaflow you put on there?
Hades12, what model and size magnaflow you put on there?
Dont know the model. I did not look at it that close.
It was an oval with center in and center out. 2.5 inch. We cut off the old Raptor and then hung the magnaflow in its place and listened to it. then another Raptor and then an OEM style one. None really helped. So I just put back on a new Cheep Raptor.
The engine is a SP with a weber 48 and RB header and no cat.
#16
Prosthetic head.
Originally posted by eddierotary
well racing beat cost 237 bucks compare to a magnaflow that is 69 buck and you can take it to any muffler shot to get it weld for 25 more bucks
well racing beat cost 237 bucks compare to a magnaflow that is 69 buck and you can take it to any muffler shot to get it weld for 25 more bucks
#17
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Join Date: Dec 2003
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i landed a free 2.5 inch flowmaster, for my 85 12a, its not to loud, sure beat the one that had a holein it that you could stick your hand in.
i saw a decent power gain, and i really dont care about the noise, has not goten me pulled over yet, and its been on there scence late august, and no blowouts,
i belive its a 60 s. all i know its the one they make for imports
Robert
i saw a decent power gain, and i really dont care about the noise, has not goten me pulled over yet, and its been on there scence late august, and no blowouts,
i belive its a 60 s. all i know its the one they make for imports
Robert
#18
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hmmm man tough decision mannn cuz im planning to get the racing beat header to maybe a high flow cat if not just to a straight pipe , but then i dont knoe what muffler . well where can i go look up on magna flow mufflers and witch model works best ? and how big are yours guys' piping ? i was thinking about 2 1/4 in. but ill wait for all your guys' input
#20
i just got my flowmaster on my fb T2, its definately loud and does sound like a tin can. its a two chamber and after 3 afterfires its now down to a .5 chamber. needless to say you cant miss the car on the street.
#22
back with rotaries
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Originally posted by GavinJuice
eddierotary are you crazy? That peice of **** isn't stainless steel it's aluminized steel so that think won't last long at all. Put on that and it's going to burn out.
eddierotary are you crazy? That peice of **** isn't stainless steel it's aluminized steel so that think won't last long at all. Put on that and it's going to burn out.
edit, BTW i have a dynomax muffler that is aluminized steel and i still havent seen melted yet but i know the packing is burned
Last edited by eddierotary; 01-09-04 at 04:19 PM.
#23
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Originally posted by eddierotary
and what you think most flowmasters, dynomax, cheap muffler and exhaust pipes are made off? and you can get the in SS too. what it get burned is the packing inside the muffler not the hole muffler just search on the website. here the part No for the SS magnaflow one. 642-14325
edit, BTW i have a dynomax muffler that is aluminized steel and i still havent seen melted yet but i know the packing is burned
and what you think most flowmasters, dynomax, cheap muffler and exhaust pipes are made off? and you can get the in SS too. what it get burned is the packing inside the muffler not the hole muffler just search on the website. here the part No for the SS magnaflow one. 642-14325
edit, BTW i have a dynomax muffler that is aluminized steel and i still havent seen melted yet but i know the packing is burned
#24
back with rotaries
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get a magnaflow, dont get a dynomax, magnaflow last longer that dynomax because is steel wool packed, dynomax is fiberglass packed. mine lasted 3 years and now is loud because of the packing inside is burned. it doesnt sound like a rice burned , it have a nice deep sound but only lasted 3 years
#25
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oh okay kool so how would the magna flow sound like?? the one with the partk number that you gave me and where can i look it up to see witch one it is thanks