johnsos30

I've read a lot about the LS6 intake and how it's helpful for modded cars. My question is, is it worth the money to have an LS6 intake installed on my car with these list of mods?

99 M6
Vararam Intake
Vararam Air Bridge
LG Street Series Headers - with new plugs and wires
B&B RT 66 Catback
DMH Electric Cutouts (installed on the muffler pipes just prior to mufflers)

I'm also having an LS7 clutch installed this spring.

So with my list of power mods, is an LS6 intake really worth spending the money? I'm assuming I would pick up about 10-15 hp with my current mods. Does that sound about right? I really don't know if I'll ever put a cam or blower on my car.

Thanks in advance.

Sinister-one

yes.

road pilot

Sure

fishbust

Just like the Harley's, the best bang for the buck is help them breathe in better, breathe out better and tune accordingly. Horses after that point come at a much higher cost.

With my C5 I went with a BBK intake, looks better than plastic in my opinion and is supposed to flow better. Either way, upgrading the intake is a good thing. And many will tell you a good time to install oil pressure sender relocate kit while you are there.

Blitzkrieg

10-15hp maybe for $350-400 isn't worth it to me!

Save your money!

Put a gear in your car if you want to see a difference!

Vetteman Jack

If you can get the intake cheap enough, go for it. I will flow better than what you have on there now.

fishbust

It doesn't work like that.
One bolt on component is not going to make a big difference.
You have to increase air in (pre 2001 needs it), breath out the back easier, then richen up mixture to compensate for more air and a leaner condition by adjusting injector pulses via tune and the pcm tune will also unleash torque held in reserve by emissions settings. A lower t stat will also help and reduce chance of pinging.

So you see, it is not about a single $400 bolt on, a bolt on is just part of the overall picture to make a good car better.

yaknow

Depends on your ultimate goal. Determine your goal, then buy the parts to meet the goal. If your considering h/c down the road you may want to wait and buy a fast.

BOUT X

This is a good start

1000 %

AMEN



This statement is spot on

How many miles on the Motor ?

My thing is a LS-6 Intake is good a F.A.S.T intake is awsome but with that said it is also 800.00 + but real sweet looking under the hood and was my choice. I would also look at getting a ported Throttle Body also and get a re-tune. You will have a very snappy motor after that remember this is your vette not mine or anybody else's so what you feel you want is a that matters.

Pops

QCVette

Like they said, it can add about 10-15 hp. If that is worth the price to you, then go for it.

My '99 is very similar to yours with
99 M6
Vararam Intake
Vararam Air Bridge
LG Pro Headers - with new plugs and wires
B&B RT 66 Catback

And I have a FAST 78 intake. Probably not much different than an LS6.
And an HPtuners tune.

I don't know how much just the intake added, but I am very pleased with the combination. Runs high 12's (even with me as a bad drag racer) and gets great gas mileage too.

Good luck with your choice.

johnsos30

So if I'm not thinking about doing head/cam, is the LS6 really worth it then? I get thats it's my car and do what I want with it, but with my few mods that I have, am I really going to notice any "seat of the pants" difference?

esemes

......and, does it need a tune to get the gain?

leet13

This may be my next mod as well! Go for it!

fishbust

No offense intended but after 11 responses you don't know yet if and why you do need a tune regardless of if you change your manifold or not? Or why a pre-2001 needs an intake manifold upgrade?

Take out the PCM (it is inside the passenger side front fender accessed from inside wheel well) and send it to ECS (site vendor) for a $149 custom tune made for your specific car and bolt-on mods while you change your intake manifold and thermostat and the end result will be a different car with real "seat of the pants dyno" results.

yaknow

If your not planning any additional mods the ls6 is good to 500hp at the crank. Go forward but, as mentioned get at least a mail order tune.

skydiven4fun

Keep your eye peeled on here and other sites, one will pop up at the right price. It will be a great addition with what you already have especially if you get a tune as well.

bontrager

and I would consider a larger flow throttle body and a tune; a must.

You may also want to consider going to a 390 or 410 gears in the rear end. You will accelerate much quicker than with the new manifold and throttle body.

alxltd1

Would a larger Throttle body help? As the LS1 and LS6 both use the 78mm TB, would placing a larger TB just be restricted because the snout on the LS6 is sized for a 78mm TB? I would think porting and polishing the stock TB would help more. Just my uneducated opinion, but would be interested to know if I am off base.

Wadoka

For what it's worth I have pretty much the same set-up you do, on my '98, but no headers yet.

Vararam B2, Borla Stingers, Katech fixed idler pulley to start.

I had the LS6 manifold installed and had the car dyno tuned, and I picked up 14 peak whp, and averaged 6 whp across the curve.

There's no telling whether the intake actually made that much difference, or whether it was mostly the tune.