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2005 and Earlier Chevrolet Impala

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  • I put enough money to the side to put on a dual catback exhaust system or a cold air intake. What do you guys suggest? I plan on adding a stage 4 trottle body in the future also.
  • Aye Carumba!

    It all makes sense. Don, reading your explanation of replacing the fuel filter and how the car runs better turned on a light in my head.

    I had the 15K mile service done a couple of weeks ago. After which I posted how the car has better pickup and runs better. That 15K maintenance included the oil, air and fuel filters, and tire rotation.

    Highly recommend the service, everybody.

    RR
  • andre1969andre1969 Posts: 22,000
    Hey gang, I was asked to post these pics here...lemme know what y'all think...


    image

    image


    Think it's something GM should consider?

  • 00impala00impala Posts: 474
    Hessitation around 45-50 mph I thought it was the transmission shifting funny, I would notice it off and on, but it was just a perky thing, I took out my K&N Filter, and replaced the Original Paper Filter, Changed the Fuel Filter, an tonite I am filling up with some Premium Fuel for a change, It really shifts and drives better, I cannot get that "chuggle" from the transmission now at 45 mph...I think my fuel filter was clogged or just a bit dirty, I changed one in a 1989 Grand Prix along about 1994 and it was the orignial Fuel Filter and it weighed about a pound~ it was that dirty//// Don
  • tpkentpken Posts: 1,108
    Andre - I'll take one of each!!!!!

    Those tail lights are exactly as I've imagined them as a triple light set. Great job on the coupe too!

    Ken
  • I dont like it. :( Sorry but I love the tail lights just the way they are. :)
  • I would keep the original tailights and just incorporate a brake light with the backuplight or move the backup light onto the bumper????
  • hunter39hunter39 Posts: 375
    but it appears that the rear deck lid (trunk) is lower as well, I don't think it is just the light change set up, and of course a couple. I like it though, it does appear lower in back, anyone else see that or am I just imagining it?
  • 00impala00impala Posts: 474
    Yea,, The wrap around part of the taillights looks a bit funky too..... Don
  • I kinda like the rear treatment in the pics. Better looking than the LS Sport's rear. The idea of a coupe is cool. Stick a blown 8 in there and where do I sign up? HA!

    RR
  • If done right, a custom dual catback will free up the choked stock exhaust and sound tough. But a cold air induction setup (with K&N filter) would be your best bet. Motorsports Performance has one for the 3.8 Grand Prix. I e-mailed them about it fitting the Impala. They said they were evaluating it and they will post it on their web site soon. They claim some very impressive HP gains with it. I will buy this setup when they say it will fit the Impala. With your future larger throttle body, you should boost HP significantly. Then there's always a blower...
  • Where do i get the blower from???
  • johnclineiijohnclineii Posts: 2,287
    By now someone should know if there are any significant changes for 2003.

    Come on, guys and gals. Spill it!:)

    Any significant changes? Engines? Interior-wise?

    How long before a V-8 or supercharged? Must we wait for the next bodystyle first?
  • teoteo Posts: 2,508
    For 2003 expect a mid life product cycle "refresh" of the Impala. Perhaps you'll see changes around the black exterior molding, headlights and grille design. Probably the interior will be upgraded to a 3 spoke steering wheel (Like the one in the Montecarlo), full instrumentation package including Volt and Oil Pressure gauges, redesigned Dashboard and door panels and perhaps the availability of electronic climate controls and Monsoon/Bose stereo options.

    Perhaps the 3800 Supercharged V6 engine will make its dayview on the LS Sport or SS variants. Perhaps the Impala LS will receive a higher output 3800 producing as much as 230HP.

    I personally doubt we will see the 5.7L V8 engine on the current FWD Impala. Torque steer is a definite problem with this setup. Once you pass the 240HP barrier with a FWD car without a good torque control system such as Torsen (The one found in the current 255HP Maxima) then forget about it.

    Impala is scheduled to go back to RWD in the 2005 or 2006 model year with looks of cool and modern retro design touches.

    Also, Bob Lutz is currently in Australia studying the possibility of bringing to North America the acclaimed Holden Commodore SS (Which essentially is a Cadillac Catera with a V8 engine)with the 5.7L "Generation III" V8 engine, RWD and a 6-speed manual. The Holden Commodore SS (Opel Omega spinoff) is also sold in South Africa as the Chevrolet Lumina SS sedan.

    If the Holden Commodore SS makes it here within the next couple of years, I might forgo getting a new BMW 3 series for my next car and trade the Impala on the Commodore SS.

    We shall see, the future of short term upcoming GM products looks very promising.

    For more info on the Holden Commodore SS, see:

    www.holden.au

    www.gm.com
  • duraflexduraflex Posts: 358
    Teo -
    What you wrote about changes for the 2003 Impala - was that your personal opinion of what is to be or something you gleaned from a trade magazine?

    You have a habit of stating your personal opinions - inadvertently or otherwise - as though they were facts.
  • teoteo Posts: 2,508
    "Also, Bob Lutz is currently in Australia studying the possibility of bringing to North America the acclaimed Holden Commodore SS (Which essentially is a Cadillac Catera with a V8 engine)with the 5.7L "Generation III" V8 engine, RWD and a 6-speed manual. The Holden Commodore SS (Opel Omega spinoff) is also sold in South Africa as the Chevrolet Lumina SS sedan."

    This came up in the latest edition of Autoweek magazine, which I happen to suscribe to.

    "For 2003 expect a mid life product cycle "refresh" of the Impala. Perhaps you'll see changes around the black exterior molding, headlights and grille design. Probably the interior will be upgraded to a 3 spoke steering wheel (Like the one in the Montecarlo), full instrumentation package including Volt and Oil Pressure gauges, redesigned Dashboard and door panels and perhaps the availability of electronic climate controls and Monsoon/Bose stereo options."

    According to Edmunds.com, Motor Trend and Car Connection, both Impala and Montecarlo are due up for a product midlife update for the 2003 model year. The other things mentioned there are speculative on my part but not out of the scope of reality.

    "Perhaps the 3800 Supercharged V6 engine will make its dayview on the LS Sport or SS variants. Perhaps the Impala LS will receive a higher output 3800 producing as much as 230HP."

    Again speculative but some independent news sources believe that if GM is to produce the Impala SS this car will likely have the 3800 S/C variant of this engine. As per Automotivenews.com, GM has announced a new generation of updated V6 pushrod and cammed engines to be launched during the 2004 or 2005 model years. Actually, expect the 3800 (Or similar) to have a series III variant in NA mode developing 230HP.

    "personally doubt we will see the 5.7L V8 engine on the current FWD Impala. Torque steer is a definite problem with this setup. Once you pass the 240HP barrier with a FWD car without a good torque control system such as Torsen (The one found in the current 255HP Maxima) then forget about it."

    GM announced in late 2000 that the V8 FWD powered Impala project was dead citing problems with Torque Steer. FWD is not the best setup for a V8 powered 300HP+ vehicle. However the advent of the 2003 Mercury Marauder will force Lutz and GM to re-evaluate the Impala SS V8 sedan once again..

    "Impala is scheduled to go back to RWD in the 2005 or 2006 model year with looks of cool and modern retro design touches."

    Per Automotivenews.com, the Impala is scheduled to be redesigned and move to the next generation "Mid-Lux" platform in the 2005 or 2006 model years. There is a possibility of a RWD setup and a V8 powerplant offered.
  • I've been working on a mod to the rear taillight assembly. I wanted a three light setup similar to Andre created so I could incorporate a sequential blinker. I already designed the circuit and did a partial mockup. However, one of the problems I have run into is that the trunk mounted panel is glued together. The area around the reverse light has a reflector-like area behind it so mounting LEDs in there is an option. I may just fabricate a new panel rather than try and modify the existing one. I'm open to suggestions?
  • If you go with the catback, you might want to look into replacing the U-bend in the exhaust pipe just before the cat. I think that's the biggest restriction in the system.
  • teoteo Posts: 2,508
    Nathan, you mentioned something about finding a rust spot in your car....do you have any details?
  • duraflexduraflex Posts: 358
    Quotes and attributions really help sort things out. It's nice to know whose crystal ball we're using to view the future.
    Thank you.
  • 00impala00impala Posts: 474
    a PCV Valve? While I was in the store I checked the book and it said the Impala uses a certain PCV Valve, I bought one for $1.98 but cannot find where it goes in the engine??? Usually they go right into the Valve Cover.,.,I checked both Valve Covers and no PCV Valve? Anyone Know whats' up?? Don
  • hunter39hunter39 Posts: 375
    taken that u-bend out of the exhaust? I know that there is an o-2 sensor there that would prohibit it from being just replaced with a straight pipe. I have a flowmaster series 50 on my LS and I too feel that the flow is restricted by that bend. I'm wondering about putting in the straight pipe and locating the O-2 sensor someplace else close by. Anyone do that yet?
  • I'll try and work on that update tonight and you can see the photos.
  • All you need to do is remove the O2 sensor and cut out the u-bend. Then replace with a straight pipe with a bung welded in for the O2 sensor. So you end up reorientating the sensor by 90 degrees.

    The Grand Prix store carries a pre-fabricated pipe for $65. There is a direct link to it on my Accessories page that has a photo of the existing pipe and an "after" photo of the replacement section.
  • mcdillmcdill Posts: 180
    You really don't want to open your exaust up too much , because then you will lose back pressure , and you need back pressure for lowend torque , If I was going to make any mod to the exaust , it would be the U shaped bend , I would'nt touch the muffler , unless you want it louder .

    The PVC valve is located in the upper intake manifold , I beleive it is on the passenger side . thanks---------mattmcdill
  • Please, don't take offense anyone, but I'm confused about all the "MODS" that many talk about doing to their automobiles. I don't understand the point. Changing this, adding that, modifying the other.... why? What's wrong with leaving your auto the way it is? If you want ultra-high performance, buy an ultra-high performance car. If you want something that has a sound system that will rival a live concert, buy an auto with one of those 200-watt BOSE 12-speaker systems.

    Please, someone, enlighten me on why you spend so much time (and money) making your new car something that it wasn't meant to be.
  • First, car modification goes back for years. It's not a new concept.
    Second, if I could afford an ultra-high performance car, I would have purchased it.
    Third, I enjoy working on my car.
    Fourth, the manufacturer design the car to meet certain requirements. They back the power down to meet emissions, insurance concerns, etc.
    Fifth, automakers build cars to appeal to the lowest common denominator. If I wanted an Impala with a bench seat and the LS package but with the steel police wheels, do you think I could get it from the factory that way? To use your example, what if the only car that comes factory equipped with a 12 speaker BOSE setup is a Hummer, but you want a 2 door sports car. So would you buy the Hummer, buy the sports car and "live with it" or buy the sports car and install the sound system you want?

    The list goes on and on. There is nothing wrong with keeping your car stock. But there is a huge aftermarket industry out there. And it's there for a reason.
  • There is not a direct bolt on blower for the Impala as yet that I know of. But check out www.impalahq.com You'll find someone who bolted on an Eaton M90 blower to his LS. It was a lot of work but the results are surely worth it. I'll probably wait for an aftermarket kit.
  • cgn49cgn49 Posts: 4
    well i was going to come back to GM and buy an Impala Ls and i will; except i was waiting and am for the economy to settle up and now i see that an 03 change is in the works; maybe an ss coming?
    not to be a moron about this; but should i buy an 02/ or wait til clarification of 03 stuff is out.
  • teoteo Posts: 2,508
    For 2002 you can get $2002 rebate and 5.9% financing with GMAC if you qualify.

    The 2003 Impalas will not be available until August or September 2002.

    It is up to you. :)
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