Tony-SS

just got back from the shop. $70 for the pipe welded in place of the rez and a oil change. not too bad.. and the shoud is much better. not too loud but you can for sure tell a difference. had the guy that did the job "a good friend" go up the road so i could hear it.. souds good. a bit louder and sounds like a V8 now. for sure a good cheap mod. maybe in the future i will replace the mufflers but for now i'm happy..

06MonteSS

get any drone inside??

that's what I'm thinking of doing.. get the resonator/u-bend removed and put on a pair of flowmasters - keeping the stock piping.

Tony-SS

drone.. very little. not much more than stock. but outside the car it sounds much better. I also am thinking about new mufflers. not sure yet tho. i will need to hear one in person with flowmasters before i decide.

Canada52

What size pipe is it?

Does anyone make a downpipe yet?

SILVER LS4

Anybody think about replacing the resonator with a cut out (2.5inch by the way). I have been, but with a catless down pipe may be too much noise.

daveridlen93

Im running flowmaster 40's and just today had the rez replaced, I thought it would be way to loud for the wife anyway, but she loved it. No down pipe yet that I know of.

SILVER LS4

If I didn't have one made I would check Hogan performance.

BuffaloSS

iTrader: (3)

HoganPerformance makes one for the LS4 that people have uses...check them out as Silver just said.

Tony-SS

UPDATE: been almost one week since i got the rez hacked out. still love it. the sound is so much better than stock. I have noticed that at WOT it's not all that loud. just a bit more than stock. but at low RPM, like around town it is way louder and much deeper tone. just what i wanted.

TWDRSS

what exactly will a downpipe do?

nighthand

Help air flow out of the engine better (just like a CAI makes it flow in better). Short of it is more HP (I would venture to say you will see more gains with a tune than just stock).

eddiemoney

iTrader: (2)

You will see negative gains without a tune. . . you can't shove more air in and out of the motor without tricking the motor into thinking its running lean/rich. Either way you will suffer, a tune is a neccessity with most mods.

Bow94z

iTrader: (3)

REz delete void warranty?

Corny40

iTrader: (7)

Nope.

TWDRSS

where can i get a tune/how mcuh $? And what exactly will they do?

nighthand

There are a couple of places that will do a PCM tune (meaning you pull the PCM out of your car, ship it to them, they tune it and send it back - or they can do it in the car if you are located close). That is around $400 or so. But you cannot use the car while they have your PCM.

Diablo and HP Tuners both make tuners/software to tune yourself. Diablo is cheaper, but HP is more in-depth.

Tuning helps the car breathe better, improves shift points, removes speed limiter, etc, etc. (More HP and better performance). You can turn off the DoD as well.

TWDRSS

ok thanks for the info