my50thvette

There are so many mods I want for my 03 coupe. But I don't know were to start. Air intake or headers or different gears? Money is the reason I don't do it all at once.
Anyway, my question to you is this....
What mod should I do first and why?
What mod did you do first and why?
What mod did you like best?
Thanks alot!

Kirik

Why ruin a near-perfect car with stuff like exhaust and gears? Only do stuff that won't affect drivability or will make it better, like a shifter, pulleys, air intake etc.

Scratch

Air intake or exhaust are usually the first mods. Some opt for appearance items, either inside or out!

AFVETTE

For about $1000 I'd do the following:

1. Blackwing air filter assembly
2. A great sounding cat-back exhaust

You may have added 10 to 15 RWHP and improved the sound of your car greatly. You are also ready for any more aggressive mods like LT headers.

Tom

Wicked Weasel

This is how my MODS are laid out 01 MN6

1. CLB

2. Air intake - Halltech Stinger

3. Window Valet

4. exhaust - GHL bullet

5. x-pipe if needed

6. 4.10 Gears (I am not adding a supercharger so based on my readings I can change the gears.)

7. Misc interior and exterior enhancements (I want the speed first).

red97vette

I want to do this too....very badly

99SilverC5Coupe

You want to consider were the mods will end or at least slow down... H/C, Blower, .... try to avoid being forced to swap out mods... you don't want 4.10s if your gonna get a blower

First - air intake Blackwing or Stinger... best bang for the dollar you will get real boost in HP... no need for LS1Edit at this point...less than $300

I did intake first then a catback ... now after HC and LT it is a bit LOUD

Also if you have a 6 spd get a shifter...one of my favorites since it is used frequently and feels much better than the stocker


Enjoy the sickness

ACELR8N

I have an 03 MN6 Coupe and have done a Blackwing and GHL Magnum cat back exhaust with Magnaflow X-Pipe. It really transformed the car in terms of throttle response, improved performance, and great sound. I have not done anything else yet, because of warranty issues. My dealer told me that they are to deny any warranty claim if the car has been modded. I informed him of the Federal Law concerning a causal relationship between the mod and part failure, and he said that could be used to appeal, but otherwise it was GMs policy to deny. Additionally, he said they have even denied warranty claims because of a changed air intake, but that is usually because of oil in the MAF. I want to do LT Headers, High Flow Cats., cam, valve springs, but am probably going to wait until me and GM part ways on the warranty.

jrose7004

I'd do an air intake first followed by exhaust and X-Pipe!

MrWhan

My first two mods on all three of our C5's....

CAJUNY2KC5

blacksedan87

I agree with these guys - intake and exhaust will give you a lot of satisfaction. Also - can't tell if you have an MN6 in either car - if so, I'd go with either a Hurst or B & M Ripper shifter.

If you lean more towards appearance - then you might consider letter inserts of some sort for the rear bumper (SS Inserts are a good choice for both of your cars), window tinting, and last but certainly not least - A Top Down Technologies Window Valet! It's a great convenience item that Chevrolet should have provided stock on these cars.

After these basics - decide where you want to go - handling, braking, more HP, etc. Lay out your step by step plan and go from there.

Personally - it could take a year or more until you acquire all of the funds to make your dream car better. And just when you think you're done - some new doodad comes along that you "gotta have!"

Personally I prefer to think of the car as a "work in progress"!

Dave68

So, I suggest:

1) Intake: Halltech Stinger-R
2) Exhaust: Borla Stingers
3) Column lock bypass for piece of mind

sharpvet03

GHL bullets and in the future a halltech stinger

vettenovice

BEWARE...Many mods can void warranties!

I did just a cat-back system since everything I've read on the forum tells me that GM doesn't give you any warranty problems with cat back systems. Just my .02.

Vetteman Jack

My first mod was a cat back exhaust and then a new set of wheels and an air intake.

Bob's C5

I picked her up exactly three-years ago today and put the following on in the order listed.
V1, Hurst Shifter, Bassani X-Pipe, Borla Stingers - w/ Quad Round Tips, VaraRam, Zaino Brothers, FlameBall, PVC Mod, Painted Brake Calipers (G2), Lowered with Stock Bolts, Z06 Screens, Alpine CD Changer, Red Top, '04 Z06 Shocks, Z06 Sway Bars, A&A Frame and Rocker Panel Savers, Kook's 1-3/4" LT's, high flow cats, and 3"x2-1/2" x-pipe, MSD 8.5 Ignition Wries, Alpine Amp w/ full range MTX box speakers, and a Column Lock By-pass.
Have fun spending lots of $!

Kevin21

I have had my car for just over two months and my mods include window tint (already done) , Z06 exhaust, Halltech Stinger intake, lowered on stock bolts, SS rear inserts and the big polished exhaust plate. Next will be a shifter and then wheels & tires. A long list follows these mods and I have really started liking the idea of a set of black stripes.

lager99

What you do for mods or spend on mods depends on your budget & goals. Most mods work off each other, so sometimes gains from one won't be seen w/o the other. If you don't mind blowing the wad at once, set a performance/appearance goal & do it. Otherwise start with the easy, inexpensive stuff & work up. Geez, when I joined the forum I was staying bone stock...

Rex99Coupe

1. CLB
2. Blackwing air intake
3. Hurst shifter
4. SS rear insert
5. CAGS eliminator
6. 3.5 GHL Bullets
Next: Z06 Springs & Hotchkis sway bars