Performance parts = horsepower

[blk_jaws]

If I was't to install
1. Flowmaster catback
2. Long tube headers
3. y pipe
4. LS6 Intake
5. 80mm Throttle body
6. 85mm MAF sensor
7. Lid
8. 3.73 gears
What kind of horsepower gains am I looking at?

[Hurley711]

scratch #1 & #6 off your list......go with a Hooker CB or Magnaflow CB and keep your stock MAF

[blk_jaws]

Well even if the flowmaster does'nt produce great power I love the sound. I have a 80 series muffler on it now. 98 TA

[JerseyLS1TA]

Ditch the Flowmaster, it may sound ok but it is one of the worst flowing catbacks. Keep the stock MAF and I would just have the stock T.B port/polished.

[GottaHaveLS1]

I would say close or over 60 HP.

[GottaHaveLS1]

Gutting the cats would help a lil too...

[blk_jaws]

Know one has answered my question about the power gains. I dont care if the flowmaster sucks to anyone, I would not trade the sound for the power.

[blk_jaws]

Thanks you GottaHaveLS1 for answering my question

[Zboner]

i say throw a tune in, and it could get 70.

[GatorSS]

#8 will have no effect on horsepower.

[SeVeReDiStOrTiOn]

Know one has answered my question about the power gains. I dont care if the flowmaster sucks to anyone, I would not trade the sound for the power.

That's the first time i've seen someone write that...if you insist on the flowmaster at least get a electric cutout, that way you can have sound and power when you want it.

[Hurley711]

No need to get testy with the attitude. You ask about performance parts and hp gains and when we tell you Flowmaster won't give you gains you 180 and say I wouldn't trade the sound for power....well which one is it? Gains? or sound? We were just trying to steer you in the right direction for power gains which Flowmaster doesn't give a whole hell of alot of, if you wantt the Flowmaster cackle that's fine.

[nhraformula]

If I was't to install
1. Flowmaster catback
2. Long tube headers
3. y pipe
4. LS6 Intake
5. 80mm Throttle body
6. 85mm MAF sensor
7. Lid
8. 3.73 gears
What kind of horsepower gains am I looking at?

flowmaster is about the worst catback out there, i had one.
it did make 7 rwhp more than the stock exhaust though.

anyways expect 7 rwhp from the flowmaster, about 30 from the headers, 10 from the ls6 intake, port the throttle body instead of getting a new one=about 7 rwhp,stay away from an aftermarket maf, lid=10 rwhp and gears=nothing.

[Mr. Luos]

340-350 RWHP.

Which is 35-45 over stock.

Like the others have mentioned....Ditch the Flows. In my opinion, the Magnaflow sounds better and it is a fact it flows better.
Stick with the stock MAF. Aftermarket ones have actually seen power declines, unless tuned for it.

With two mods (SLP Loudmouth, SLP lid) I dyno'd 320/333.
Add SLP 85mm MAF (mistake), SLP LT's (also mistake), LS6 intake I dyno'd 343/358.

[blk_jaws]

I'm not trying to be a smart elek, I just love the sound. On Horsepower TV on Spike TV every car they work on they almost always put a flowmaster on it, so I figured it was pretty good. Any ways I'm not going to be running it at the track, I just want it to be the meanest sounding and performing car in my town. So everyone will think twice before messing with it.

[~redlinels1~]

I'm going to say roughly a 40hp increase. I would highly recommend getting the stock TB ported and to keep the stock MAF. Are you an auto or 6 speed? If you're an auto, I also highly recommend a torque converter. Just my .02

[SeVeReDiStOrTiOn]

cutout

[blk_jaws]

I have a a4

[blk_jaws]

Would I need a tune after headers

[Mr. Luos]

Wouldn't need it.
But you would get the most out of them with a good tune.