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Well I ordered the Flowmaster american thunder.....Its costing $310 for the system...Plus another $50 for install....
Is everyone happy with their american thunders?They are just made for the Newer Stangs.And how do they sound comparing to the stocks....JohnnyT

 

http://www.flowmastermufflers.com/products...roducts_id=4009

 

thank yeaaaa ............Loud is good...JohnnyT

 

Very, very happy. It's the sound that was supposed to be there I got mine for 273 shipped + install, though honestly, if you can get your car off the ground (some people install without lifting it up, even) then you should be able to do it yourself. It really is bolt-on. I had a muffler place telling me they were going to have to do all kinds of cutting... I told them to look at the existing muffler and they didn't change their tune. I just went to Meineke and it worked out great, but next time I would do it myself

 

Yea i love the sound, I payed $245 for mine, 20 shipping and did it myself. No complaints and the sound is awesome!!

 

Compared to stock they sound awesome! They are really deep and throaty. I am very happy with them! You wont be disappointed.

 

I love mine and YES, never installed anything like that before but I did mine myself - save the install fee and do it yourself!!

 

Great ,,,,Glad you all are happy with them...I am having a Oil change later and i feel for around $60 there should be no problems for my service station to do......I know I might be able to do it with no problem but we are not talking many dollars in letting someone else doing it...Thanks..JohnnyT

 

Just a heads up, the clamps suck. I tried installing mine and could not get the tight, or centered. I ended up having Meinke install them with a different clamp, and now they are fine. Great sound.

 

My question to all of you with new exaust. Preferably Flow Masters. Do you really notice a difference with the low end torque and hp? I see the excel datasheet someone posted and see how much of a difference there is just by changing out the muffler. Do your really FEEL that much of a difference?

 

NO

 

Well it cost me $60 for the install and they are very loud....Now i will think i will enjoy riding the Stang gt more offen now.I just want people to move their cars when I am behind them lol..JohnnyT

 

 

Gotta love the FlowMasters! I just installed my C&L last night, and these things really scream from 3 grand to red line!

 

I love how these mufflers yield the most gains in hp and tq, my main concern is loudness. How much louder than stock are they? I'm really afraid these will be to quiet and mellow for my taste. Has anyone heard both the Flows and the SLP's in person, if so can you compare?

 

I just know its day and night,,,,But they will not annoy the people living near yea.But they know you are coming down the road.I love them and its well worth it.....JohnnyT

 

Any other opinions?

 

Sounds like a MONSTER with them on, very pleased. When I step on the gas next to someone, everyone looks.

 

I'm in your boat TehSLeeper.

Which of the two (SLP Loudmouth or Flow Master-American Thunder) is louder? I want something that will wake up the neighborhood in the mornings Hehehehehehehe!!!!!!!!

Nick