spinall4

I see alot of people on here running the cheap old age method of a muffler delete, does this really do anything on our cars tune or no tune? I know the skittles came factory with no muffler so i am leaning towards the answer of yes but i am not sure...

Obviously the gutted/catless downpipe/testpipe will add gains thats a given but any proof, dyno/track times to show a gain of chopping of the muffler?

Also would that automatically void my powertrain warranty? Its not something you can just throw back on like a factory ecu or intake... They will notice the new welds

thanks in advance...

Nal

I talked to my dealer and they said no warranty issues will arise as long as I stayed cat-back, so I chopped it, lol, I gained about 2-3 mpg after, but I would ask at the dealer first to go on the safe side

dunit121

lol i take mine to the dealer never told them and i never herd any problems.... and no gains from the MD or maybe some weight reduction actully ....

spinall4

whats an md?

dunit121

muffler delete

spinall4

ahh duh... long day

cobalt123

no mines been hacked for several months, several dealer trips 0 problems. loud as **** when originally cut

sporttintturbo

muffler delete i didnt think barely did anything. only made it a wee bit louder. cutting second cat and reso off seemed to open it up a weee bit and i love the sound

Nal

yeah md, just a tad rumblier/ louder than stock but not much, you can't really notice it once it settles down to normal rpm idling

spinall4

so it doesnt add any power?

rukkee

iTrader: (3)

You gained 2-3 MPG from chopping the muffler? The stock muffler isnt very restrictive , thats why the exhaust note doesn't change a whole lot when you remove it .


Most of the muffling is done by the Cat's .... When i went to a catless downpipe the exhaust note really changed a lot . You could tell it opened up a big restriction in the exhaust.

cobalturbo87

my friend did this and i thought that it sounded pretty nice for such a cheap mod.

Chandler

no gain, dont do it.

austinss

Our muffler doesn't do much of anything, quiets exhaust note a little. Shouln't be any gains on MD alone.

Mr_Slobalt

iTrader: (1)

my coworker cut his muffler off and it sounds really good when he drives it, just not when it's idling IMO

HB_SS/TC

iTrader: (1)

Idle doesn't sound any different.

Cold startup is a different story. lol

rico

well kinda of the same ill be turboing my lsj to a turbo swapped. so what y all reccomend i do about exhaust. after the dp? straight pipe?or what

Mr_Slobalt

iTrader: (1)

it does inside a shop

raynrishad

Or in a Dyno. Car sounds pretty good when you open her up. But no change at an idle except on start up, then it quiets down once it's warm enough.

cresintern

yes it sounds great good burble and pops no performance due to learn down, do a 3" straight section from catback

Joemann892

dealer cant say anything about removal of our muffler. We have no baffles in it. If you peeled away the muffler you would find a pipe inside, thats it. We basically have an insulated pipe.

wantedSS/TC

iTrader: (1)

catless dp and MD is a different story. as soon as I went catless I put the muffler back on. still sounds like a single propeller airplane on cold start ups