Thread: Engine Mod Suggestions?

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  1. #1 Engine Mod Suggestions? 
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    Just bought an 07 Grand Prix GT and am looking to do some mods too it. I am about to order the basics (cai exhaust and high flow cat, coil packs with msd wires and plugs) but am kind of stuck in a dead end after that. Short of computer tuning I'm at a loss for more upgrades and research on the internet has been hit and miss on certain things. If anyone has any suggestions I'd appreciate it. Also any idea in what I can expect in terms of power gains from the above mentioned upgrades? Thanks to all.
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  2. #2 Re: Engine Mod Suggestions? 
    Moderator dsmuts's Avatar
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    Don't get coils. Keep those stock.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  3. #3 Re: Engine Mod Suggestions? 
    GXP Level Member ctracer's Avatar
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    what are you doing for exhuast?
    i suggest headers. keep stock coils and plugs and wires.
    if you have the ability to tune i would drop a pulley size to a 3.6/3.5 along with headers/cai/colder spark plugs.
    07 Black GXP.
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  4. #4 Re: Engine Mod Suggestions? 
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    why's that? and its an slp exhaust. only one i could find really. and headers are IMPOSSIBLE to find. i've searched numerous times and cannot find any.
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  5. #5 Re: Engine Mod Suggestions? 
    GXP Level Member ctracer's Avatar
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    why's what? lol
    07 Black GXP.
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  6. #6 Re: Engine Mod Suggestions? 
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    coil packs stock lol sorry
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  7. #7 Re: Engine Mod Suggestions? 
    I live here. siLversLeigh's Avatar
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    pulley
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  8. #8 Re: Engine Mod Suggestions? 
    GXP Level Member ctracer's Avatar
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    its alright lol.
    stock coil packs last the longest and dont fail. MSD coilpacks are prone to failure and rob power. for the short amount of miles they work im sure they work great, but i doubt you want to change them out after maybe 10k miles.
    i have heard people saying that they CAN get a good amount of miles on them BUT thats a very rare statement.
    07 Black GXP.
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  9. #9 Re: Engine Mod Suggestions? 
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    hmm.. and any idea on where i can find a set of headers?
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  10. #10 Re: Engine Mod Suggestions? 
    GXP Level Member ctracer's Avatar
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    ebay. usually people have good luck with speed daddy's but i dont have any personal use with them so hopefully someone will chime in.
    07 Black GXP.
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  11. #11 Re: Engine Mod Suggestions? 
    Moderator dsmuts's Avatar
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    Headers are the same from 97+
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  12. #12 Re: Engine Mod Suggestions? 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    a 3800 is a 3800 from 95-08.

    SSAC headers, buy those.

    Keep stock coil packs.

    Make your own intake.

    And do what you wish with the exhaust.

    SMGPFC Member #1
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  13. #13 Re: Engine Mod Suggestions? 
    The Blue One blueguy's Avatar
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    Link in signature.

    Read it.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
    '99 Chevrolet Silverado Classic Z71 4x4 - K&N Intake/Gibson Exhaust #TRUCKTHINGS
    '12 Buick Regal Turbo - ZZP CAI/20% Tint/HID's
    '89 Ford Mustang LX Notchback - LM7 5.3, 4L80, 9", HX40
    '04 Chevrolet Corvette MRM A4/LS1 - TSP LT's, 3"O/R X, AFE S2 CAI
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  14. #14 Re: Engine Mod Suggestions? 
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    Mod wish list should depend on how fast you want to go or what plans you have for the car.
    98-XP e85 SSAC HPT AGX Bullets Every BRM piece home built trans
    99-HPT ssic headers ported blower
    94z28 with a cam that chops so hard it hurts def peopels ears.
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  15. #15 Re: Engine Mod Suggestions? 
    GXP Level Member Tuner-Extraordinaire's Avatar
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    cam it.
    Whine with your Cheese?
    Stock+Self Tuned. Going for low 14's everyday.
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