I am wanting to to upgrade my exhaust on my 05 and I am curious about this new Flowmaster American Thunder Cat Back kit for the 05. I like the sound of the stock exhaust but I want something just a little bit louder and meaner. Does anyone have this kit and if they do how much louder is it than the stock exhaust. It looks to be reasonably priced compared to some of the other exhaust I've looked at that are just too expensive for me.

 

I have heard only bad things about Flowmaster's stuff for the '05, including that it actually made the car loose horsepower. If you want something meaner there are a lot of choices out there. Look into the SLP Loudmouth... there is a soundclip on here for that too.

 

"have heard only bad things about Flowmaster's stuff for the '05, including that it actually made the car loose horsepower"

that was with the 40 series. the american thunder kit was designed for the mustang. i have had it for a month now and very pleased with it. it will give a little drone when you are in to high of a gear at low rpm. otherwise the sound at idle is much better & when you hit it the sound is mean. i paid 279 with shipping for the kit & the install was a sinch.

 

Thanks tx2005gt, can you also tell me where you ordered yours from!

 

21st CENTURY EXHAUST
313 N.E. 3RD STREET
DELRAY BEACH, FL 33444
800 276-6399


this place does not even have a computer. they did ship it when they said they would and i could not have been treated any better.

 

... & the install was a sinch.
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How long did it take to install?

 

MAC's are louder and sound just like flowmaster, I was told by other MAC exhaust users and I have my kit on order..... $400 for the cat-back on PartShopper.com using TMS discount

 

How long did it take to install?

the install took 15-20 minutes a side. it will help if you have a jack & jackstands

 

Anybody got any sound clips of the MAC's axle back kit?

 

I agree with tx2005gt. I've had the Flowmaster system for about a month now and I'm very pleased with it. It was easy to put on, didn't even need to jack up car and the 4" tips look awesome. Sound is just a little louder than stock, but deeper I think. A little drone at low RPMs so just keep her revved up and it won't be a problem! I also got mine from 21st Century Exhaust for $240 + tax/shipping.

 

i got a clip of it, PM me with your e-mail

 

I like how the Flowmaster mufflers are black. Has anyone taken off their exhaust, taped off the tips, and painted the mufflers (and possibly the inside of the tips) with some high temp flat black paint? Any thoughts on this?

 

I did the high temp paint thing before I installed the Flowmasters. I taped off the tips, used some cardboard and sheets to cover the surfaces I didn't want painted, and then sprayed the backs and bottoms of the mufflers. They did look a lot better in my opinion.

 

anyone else put their car on a dyno with the flowmaster kit to be sure of the horsepower loss?