MajeSStic_

Hello all, finally got the miss fire taken care of after replacing sparkplugs and finding a couple cracked plugs, cleaning the maf etc. and now that winter is right around the corner im going to start doing some simple bolt ons like LT headers and ofy pipe, and an intake (maybe) and idk what else. Any suggestions? I also have a couple questions about LT headers. Are there any benefits from keeping the AIR and EGR stuff? I know it would need to be tuned out if i took it out (planning on getting the car dyno tuned after i do all the mods) but are the gains affected with or without it? car is a 99 Camaro ss M6 with a k&n cold air intake and a flowmaster muffler, tick master clutch master cylinder, umi 3 point subframe connectors and a shock tower brace.

big hammer

Delete AIR

1-7/8 headers, not 1-3/4

Ported fast 92 or 102, TB, 85 mm truck maf and matching CAI

X Pipe duals if you don't mind a little noise.

Tune with 6600 rpm rev limit

Ditch the shock tower brace

3.90 gears and a 26" tire

Better clutch if you want to get sassy.

big hammer

So much more to do depending on your goals and budget.

mjs1012

iTrader: (36)

I'd ditch that flowmaster and get a real catback and maybe also add an underdrive pulley.

MajeSStic_

HA! Yeah, thats one of the things im gonna get rid of. It sounds funny in the upper rpms, and something inside sounds like its blown apart with all that flame throwing i had going on. And i want to kick the person that did the exhaust work in the nuts. (They did a cat delete) and some of the joints are welded and some of them are clamped. The welds look like someone did it with their feet, theres holes all in it, the clampes are bent and come loose every once in a while, they didnt use factory brackets to hold the muffler so it bounces around in their home made brackets and doesnt sound right. Its a mess. Slowly fixing all the little things. What are the benifits of an underdrive pully?

MajeSStic_

Budget depends on how well the business does this winter haha. My goal is to do a few simple bolt ons and a good tune. Id be happy with 350 rwhp. I read that 1 7/8 headers are "too big" for a stock cam, and don't show any gains over 1 3/4?

HCI2000SS

iTrader: (2)

No the 1 7/8's are still the better choice even if you don't have heads and cam

MonmouthCtyLS7

iTrader: (6)

Long tubes, Catback, Intake, UD Pulley is a good start.

Avaric3

iTrader: (3)

Whoever it was that told you 1-7/8" is too big for stock engine lied to you. It gains more across the board than 1-3/4" does

Mappinsj

1 7/8 will breathe on top and 1 3/4 will but not as much. I have bolt ons with 1 7/8 and true duels and my power line is a solid 340 wheel for 800RPM

Guys with 1 3/4 drop down after 5,500 from what I have seen but they also don't have true duels


01 02 cars have truck cams, this could also be the reason but unfortunately i don't know

Mappinsj

Mine is the blue on blue I have a 2000 camaro with ls6 intake, slip lid and bellow with filter, 1 7/8 speed engineering into catless custom true duels

I found another car on this website that posted his 2002 with bolt ons

Look at his peak and mine

Mappinsj

This is another I meant to post this one but both have same exhaust

Reaper-Z

iTrader: (9)

Why ditch the strut tower brace? I agree with the 1 7/8 LT's, I'll be doing the same thing over winter along with true duals. 3.90's over 3.73's?

MajeSStic_

Yeah, it makes more sense to me to have bigger primary's. Thats why i came here before going out and buying stuff.

MajeSStic_

How do you like the speed engineering headers? Thats probably what i'm going to order.

big hammer

It's just unnecessary weight TBH.

gsxkid

iTrader: (2)

I'm doing the same with my car. Trying to get all my bolt ons out the way.

Here's a list of my bolt ons
Ls6 intake
Ported 78mm tb
Tb bypass
Emissions deletion
Volant ram air intake with smooth bellows
Speed engineering 1 7/8 headers
Atlantic coast converters billet9.5" 3800-4000 with lockup
Under drive pulley

Things I want over the winter if money allows

Fast 90 or 92 with matching tb
Off road y pipe with a 3.5" or 4" cutout
On3performance catback
And that's all I can think of at the moment. It might be a few bolt ons I'm forgetting.

z28_YOU_HO

iTrader: (7)

My 1 7/8" fit great. Had to grind down the "block" on the motor and slid right in. Took all of 5 mins in delay. I did not do motor mounts either

z28_YOU_HO

iTrader: (7)

Save the money and get a cam for the winter project. Also I did the 4" cutout but I would suggest just doing the 3" - cheaper and probably only 5HP difference.

Cam will give you 40-50 wheel hp and be the best mod for the buck after longtubes

1BAD98LS1

iTrader: (33)

Not that it will on other cars but my fully bolt-on 98 engine picked up 5whp with 1 7/8 from 1 3/4 LT's. Bolt-on ET time in my sig.. Get the 1 7/8 longtubes and don't look back. You will not be disappointed and in the event you do any internal mods in the future you will already have them. Just my .02