EXHAUST MODS Hercman's comments
"The only way to get a mean sounding exhaust will be if you do a cam swap.
The SLP loudmouth is just that it's loud. Remember you have a V6 and just adding in new exhaust will never get you that V8 sound. If you want to do a cat back exhaust your best money spent would be to go to a shop and have one made. Alot of us use Flowmaster 40 series. I have the super 40s and love them. There are a few other brands but for the most part FMs seem to be the favorite here.
For mufflers go to ebay and use performance peddler. They have bout the best prices out there. I think you can get a pair of muffs for right around $100."
Thunderbat's comments on Flowmaster Hushpower muffs
"I have to admit that I had my fears about putting this muffler on the car cuz I was afraid it would make it as quiet as the stock system...this is a chambered muffler but has a case only about 5 inches wide, or about as big as you catalytic converter only longer. Much to my pleasant surprise, when I cranked the engine the exhaust note seemed virtually the same as it did with the Cherry Bomb, a nice low rumble. Heavy throttle application still yields a robust roar but with little or no back-rapping when you back off or downshift...but most important of all, the interior drone is so low that its almost undetectable...turning on the stereo wipes it out completely. This is an expensive muffler ($124 from Jegs) but it is T409 stainless throughout and it hands down does the job. I would highly recommend this Flowmaster to anyone"
Rook on Flowmasters and the 3100
"Flowmasters don't come with tips and will run you $60+ each. From those that have played with them on a 3100, I hear they sound slightly deeper than the 3800s."
GTP4LIFE's comments on the SLP Loudmouth
"i have the original SLP Loudmouth and it is horbal, i mean it is really throaty i have had a few people ask if its a v8. but i can turn the radio up all the way and still hear it clear as day. theres no way to talk on the phone and drive"
vmschumacher's comments on the hushpower 2
"I have the flowmaster hushpower 2 muffler w/2.5 pipe and resonating silverline tips. Best sound I have EVER heard in a mildly modded GTP, EVER!!!!
My friends thought I had a v8 with the rumble."
1BAD97's comments
"A 3" downpipe without a cat will make your exhaust sound very nice with the stock mufflers/resonator. That can be had for less than $300 and is a bolt-on deal. I have stock cat-back (resonator in place) with 3" catless DP and PEM's, sounds pretty damn good to me (of course the XP cam plays a small part in that, lol) Not unreasonably loud, but mean enough to scare ricers, and it's very obvious the car is cammed. Just offering an alternative to throwing poopy sounding mufflers (which is ANY aftermarket muffler really) on a GP. The 3800 is just not a good sounding engine (as in, will never sound like a stang GT), nothing can fix that so don't go broke trying."
Originally posted by lonezergling:
I run Pacesetter headers with a 3" cat'd downpipe into a custom resonator-less 2.5" stainless SE-style cat-back with one Flowmaster Super 40 and a big bore resonating tip.
My car is very loud. Not 454 Chevy with Zoomies loud, but WAY louder than stock.
I have terrible exhaust leaks from the headers but witht he XP cam, you can hear EVERY LOPE of the cam.
Without the resonator, there will be lots of in-car noise. Maybe not the brain rattling drone like many say but you WILL hear your exhausr plain as day inside the car.
Here's what I'm going to say you do.
If you want a good sound but DON'T want ti loud, I'd say get the usual 3" cat'd downpipe w/ u-bend delete from ZZP and maybe a P-log.
That will open up your exhaust a little bit, make it a little deeper but nothing much. That stuff is good for at least 10hp AND it gives your exhaust a better note. The cat-back won't give you anything and costs 2x as much.
From then on, if you want a better TONE out of the car, your best bet is to have an exhaust shop weld in 2 aftermarket mufflers in place of the stock ones. Flowmaster Super 40s and Magnaflows are the top ones around here. Grab a set of resonating tips in the style you want and you will have a nice deep exhaust.
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