ChevyRyda99LS1

my question is, it might be kinda stupid I have a 99z28 with Slp lid and american thunder flowmaster cat back I was thinking about getting a electronic cutout after the cats will this help me any as far as HP gain goes

02TransAm/Batmobile

iTrader: (32)

Hell yea! I recommend getting it farther down the I-Pipe close to the rear passenger wheel. It's easier to cap and uncap without lifting up the car or anything. I didn't buy the electronic part, just the cut-out itself and I leave it open all the time.

trans99am

iTrader: (1)

anything is better then flowmaster

ChevyRyda99LS1

will it sound alot meaner even though its behind the cats the cut out I am going to get some with the y-pipe and all that I just didn't want to get it and it wouldn't help.

trans99am

iTrader: (1)

i personally dont like the sound but that is just me. get rid of those cats

ChevyRyda99LS1

I would love to but I live in the wonderful state of california and the emissions laws out here are just gay I just want get more power but am kinda limited cant get high flow cats, cant get headers I am not to sure what to do next

tylerdj

iTrader: (31)

Read the sticky

And trans99am, your sig is HUGE....you need to resize it.

waldershrek

iTrader: (1)

Absolutely, cut outs provide a noticeable throttle response and sound means too. Plus best of all it's less than $100 (for a regular one)

Pesticide

iTrader: (8)

11 hp and 8 ft lbs of torque gained at the wheels on my stock SS. From what I have read the stock SS exhaust flow just about the same as flowmaster catback so I'm sure you'll pickup some pony's.

ChevyRyda99LS1

cool thanks alot for the help

Yahelou

iTrader: (23)

not meanin to hijack his thread, but i have the same situation. will there be a noticable difference between a cutout and flowmasters or a true dual setup?? i already know that the td setup is better, but by how much??

MannyZ28

iTrader: (1)

My mods are in my sig.

I just had the car on the dyno last Friday, and I gained almost 10 rwhp between the cutout being open and closed, and that's with a pretty free flowing (and rather expensive) B&B Triflo exhaust.

With headers and catted Y pipe and a cam, I find the noise of the open cutout unbearable, so I cap it but put a nut between the cutout and the cap as a spacer, so it still sounds mean at idle and at WOT without being super loud.

NHRAMAN

iTrader: (1)

that is wrong--I have seen the inside of stockers vs Flowmasters....they are much better, and all the flow charts only put the 80 series about 1/2-3/4 of the way down...in CFM's..only 100 or so.

ghettocruiser

iTrader: (17)

Thats why I love my electric... I dont like it fully open all the time either. So I just give the switch a couple taps and crack it open. Sounds great, less rasp. It adds just alittle something to the already great sounding magnaflow.

Im kinda anxious to see how much different the cut out makes on my car. LTs, ORY, magnaflow vs. LTs, ORY, cut out open.

J.

zmonsterjb

iTrader: (16)

yes it will, but you will loose a lil low end torque, and you will be able to tell whenever you put the cut out back on.
I have seen a 408 dyno 40rwhp with the cutouts removed and nothing else changed.