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Picking cat back exhaust

286 Views 13 Replies 6 Participants Last post by  flynndawg53, 
bob101nano2
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I want to get an aftermarket cat back exhaust for my 2002 mustang gt, but I don't want that much noise. I'm picking between Flowmaster and SR Performance. I can get a SR new for $305 or get a used Flowmaster for $400. They both sound good but maybe is the quality that makes the price difference. I don't know much about exhausts but the Flowmasters look a little beat up. Just trying to get some thoughts and opinions

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S
Exhaust noise level and quality is subjective. Those flowmasters pictured are 10 series, louder than the typical 40 series.

If your car is a na bolt on car, save the $ and weld in the mufflers of your choice. Years ago I did that on a 02 GT I had. 40 series flowmasters just like what comes in the catback kit and upr x pipe. That car was probably one of the best sounding cars I've heard, assuming you like the classic flowmaster sound.
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bob101nano2
SNK VNM said:
Exhaust noise level and quality is subjective. Those flowmasters pictured are 10 series, louder than the typical 40 series.

If your car is a na bolt on car, save the $ and weld in the mufflers of your choice. Years ago I did that on a 02 GT I had. 40 series flowmasters just like what comes in the catback kit and upr x pipe. That car was probably one of the best sounding cars I've heard, assuming you like the classic flowmaster sound.
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So the Flowmasters are just mufflers. And you recommend just getting mufflers instead of a whole cat back system? If the sound is similar and the cost is that much cheaper then ya might as well.
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K
get a flowmaster fx series cat back
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sour
If you don't want noise the only flowmasters you should be going with are 50 series or DBX laminar flow. All the smaller ones are loud and drone like hell.
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S
bob101nano2 said:
So the Flowmasters are just mufflers. And you recommend just getting mufflers instead of a whole cat back system? If the sound is similar and the cost is that much cheaper then ya might as well.
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I'm not sure what you mean by "so the flowmasters are just mufflers". If you're saying you can by just the mufflers off that car pictured for $400, that's crazy.

I'm recommending looking at welding in any muffler of your choice to your stock catback as a less expensive option than an entire catback. A bolt on, na 2v won't make enough power to take advantage of the increase in catback diameter when going from the oem 2.25 to an aftermarket 2.5 inch kit. All bets are off if it's supercharged or has ported heads or a tfs topend.
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robvas
Flowmaster outlaw kit is cheap new
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bob101nano2
SNK VNM said:
I'm not sure what you mean by "so the flowmasters are just mufflers". If you're saying you can by just the mufflers off that car pictured for $400, that's crazy.

I'm recommending looking at welding in any muffler of your choice to your stock catback as a less expensive option than an entire catback. A bolt on, na 2v won't make enough power to take advantage of the increase in catback diameter when going from the oem 2.25 to an aftermarket 2.5 inch kit. All bets are off if it's supercharged or has ported heads or a tfs topend.
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Well, the guy was asking $400 for the flowmaster and the rest of the exhaust system, looked "custom" made. But don't worry, I already turned him down. Flowmaster Super 10 is not road legal in CA and I ain't taking any chances. Anyways, I do plan on supercharging in the future, probably in a year or two, but If all I need to make it louder now is just a simple pair of mufflers, then ill just get that.
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bob101nano2
ok, so I have boiled it down between Flow Master 40 Series Delta, Flowmaster FlowFX, or Magnaflow XL Multi-Chamber Performance Muffler. Obviously, it is all subjective, but what do you guys think sounds the best, and which are the loudest/quietest? I need to keep it under 95 db because of CA. The FlowFX sounds great, and the price is unbelievably low.
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K
flowmaster fx series. blown 408 645rwhp with 2.5 tailpipes.
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sour
bob101nano2 said:
Flow Master 40 Series Delta,
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My 94 GT has these from the previous owner. After I get all the real important work done with that car the very first quality of life improvement it's getting is different mufflers because f*** drone.
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S
sour said:
My 94 GT has these from the previous owner. After I get all the real important work done with that car the very first quality of life improvement it's getting is different mufflers because f*** drone.
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Drone is curable without a muffler change.

www.corral.net

Exhaust Drone is Completely Gone

My magnaflow had the usual 2000 rpm drone, so I tried something a little different (I think) to get rid of it. The drone is now not just better, it is completely gone - the exhaust is downright quiet cruising at 2000 rpm. I read an article on the internet about "tailpipe resonance", and...
www.corral.net www.corral.net
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sour
perhaps but also it is curable with muffler change..
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flynndawg53
bob101nano2 said:
So the Flowmasters are just mufflers. And you recommend just getting mufflers instead of a whole cat back system? If the sound is similar and the cost is that much cheaper then ya might as well.
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i aint got no cats... not sure which flows he put on, but she sounds sweet... as does the 93 bro... :)
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