what mufflers do you guys like? i am thinking about trading in my 98 gt for a newer one in the 05-07 range(for pricing) and i got my ears on either the fr500, slp loudmouth, or the mac mufflers. any opinions?
yeah ive been wanting to keep the stock h-pipe since i live in a county that requires emissions, plus very little extra cash laying around. but yeah i like the sound of the macs as well as the slps personally. a friend of mine i work with has an 08 racecraft with the fr500 axlebacks on it and it sounds wicked. its the same axlebacks that come on the gt500kr. i also like the mbrp axlebacks as well as the m80 delete mufflers but cant seem to find the deletes anywhere.
I listened to a lot of sound files from YouTube, etc. and ended up with the Mac Boom Tubes. Awesome sound for a stock exhaust. I added Thumpr's, Kooks LT's and catted-H and they were too loud. Belonged on a race track after those mods. Sounded beautiful but not good for a proper neighbor. I then switched to Magnaflow's Street, not Magnapack. It now has the low, deep, throaty sound I was looking for and when the cams come in the sound becomes more brilliant.
So what I am getting at is listen to as many sound files as you can. The only thing that sucks about sound files is that the owners seem to be afraid of getting on their motors. Mostly idles and a little off-idle. I absolutely hate that! An exhaust is going to sound different idling, off-idle, free wheel stomp, or under acceleration. Under acceleration is what you are looking for.
So outside of my suggestion of listening to available sound files is the Boom Tubes if you are not going long tubes. I love the Magnaflow Streets I have now with the Kooks LT's. It may be a bit pricey finding that sound you like with your mods.
I haven't heard Mac with the stock H pipe so I cant really tell you on that one. I does sound BAD*** with the O/R. I can tell you the SLP's sounded pretty good with the stock H. Haven't heard any of the others you listed so can't help with that.
Dynomax Bullitts sound awesome I had them on my 06 I would recomend them. Loud mouths have a good sound untill you remove the cats then it is just to loud. Mac mufflers sound really good wit a prochamber.