res0n0xg

As I have recently posted. just got a 2000 NBM z28 vert.

looking first two things to do is intake (lid) and a catback.

wife won't let me even do this asap, but i think i can pull it off relatively soon, headers are out for the time being and i know that is obviously what needs to be done as well as a y pipe of some kind.

how much gain would i notice from say an SLP / MTI lid + slp loudmouth 1 catback?

406malibu

save some money and go with someone else than slp.... ive been reading around on here and so many people are pissed because their prices are real high, and not any better than other aftermarket places. I'm not sure but i would expect gains to be around 10-20 if that. just a guess

NHRAMAN

iTrader: (1)

Any lid will do--basically a lid is a lid...MTI might be better..some had had rubbing issues with hood contact with SLP--I have slp and no problems though---as far as a catback--LM 1 is REALLY LOUD..check out LS1SOUNDS for vids/sounds.

res0n0xg

i want really ******* loud. i had a 2006 mustang gt and i had it really ******* loud. so i want at least that equivalent.

ok, mti lid + slp loudmouth 1 catback.

relative hp gain? 20hp 20 tq? comon, i'm gonna doubt that, but what you guys think?

NHRAMAN

iTrader: (1)

10 -20 most likely on a complete stock car... AND----LM1 IS...Really loud for a catback..

406malibu

depends on the car, but ls1's seem to respond well to mods

Black01M6SS

iTrader: (3)

I'm not sure about exact numbers but look at it like this. You probably will NOT be able to feel the difference but you will most likely pull a car length or two on a car without the mods and it will sound a whole lot better.

I had the LM1 on my car for awhile. With LT headers and an off road Y pipe it sounds like crap IMO. Very raspy in the 1800-2200 rpm range. I got rid of it and got a Corsa catback. Not a big fan of it either.

RPM WS6

iTrader: (3)

You can expect a 20-ish HP (engine) gain with any lid + good catback. Figure 12-15 rear-wheel HP gain.

res0n0xg

anything else on the cheap to increase power? yes i know of stickies and the bagillion threads, but sometimes it simpler just to get concise reponses rather than sifting through 40 threads.

ok, mti lid ( paper filter / or should i use a k&n ) + catback, ported and polished TB?

I do have a 6spd as well. I should be easily seeing over 300whp 300wtq correct?

sorry for these questions as i am new to ls1s

RPM WS6

iTrader: (3)

I'd stick with paper. K&N is messy to clean, and there really are no power gains with it.



M6 LS1 + lid + catback = over 300rwhp no problem (on average).

res0n0xg

good to know..... man i just don't wanna be slower than my 06 GT.

damn deal on the vert i got.... oh well, i still love the drop top.
I just wonder what it runs in the 1/4 stock. the GT was about a 13.9, i'm guessing this car is going to be about the same.

RPM WS6

iTrader: (3)

An M6 LS1 car should do better than 13.9 (assuming you are a good driver), including even a heavy 'vert. Only reason why you would run that slow would be if the drivetrain needed some attention, or the tires were trash.

People have put hardtop/t-top M6 LS1s into the 13.0-13.1 range stock (with a select few factory freaks even hitting 12.8-12.9). Granted, those are great drivers with great weather & traction, and most won't run quite that fast stock. But even your 'vert should have no issues running some solid mid-13s with a lid & catback.

davered00ss

iTrader: (4)

10-15rwhp Max.

bigpapi211

iTrader: (4)

you should dyno well over 300rwhp stock expect about 310-312. go magnaflow catback loudmouth is way to raspy. yes its friggin insane at wot but cruising around streets it sounds like chit. i have some sound clips on my fquick page

bigpapi211

iTrader: (4)

and ive seen a stock ls1 m6 go 12.69 with just dragradials on it. this car is gonna be a beast compared to your mustang. heres the link
http://youtube.com/watch?v=SkXFFrpVgRQ

1Loudz28

iTrader: (47)

save up $400 more, and just add longtubes and ORY to your mods to make it the loudest possible.

miamifan3413

iTrader: (1)

+++++1

02silvaZ

iTrader: (12)

thats what i was going to say

jebuzws6

iTrader: (5)

just want to add to this topic and add a question.. how much power will a car with; lid, cat-back, S3 TB, and Pacesetter LT's make?

krazy4

iTrader: (5)

probably 340rwhp