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Incompatible mods V6

choccojosh

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a while ago i heard about "performance mods not compatible with each other" now i have a 2000 vt executive S2 sedan with 3.8L ECOTEC, its bone stock apart from kingwood 6x9's, US audio 375watt amp, alpine head unit and VR clubsport fakes.
what i want to know is: will any of the following reduce power or cancel each other out?
K&N air filter
MACE 25mm manifold insulator
MACE 12mm plenum spacer
MACE VT commodore TB memcal
2.5 inch straight through exhaust with 1 muffler
Cold Air Intake
Lowered King springs and Monroe GT shocks
Whiteline 30mm heavy duty sway bar
Nolathane heavy duty front struts
3.08 LSD or 3.45 LSD diff (havent decided yet)
2.5 inch high flow cat 200cpsi
Transgo stage 2 shift kit
Corvette servo
Extractors
Eagle performance leads
MSD coils
Iridium spark plugs

Also can anyone recommend good injectors and fuel pump without over the top performance?
 

showbags

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Your mods listed will only yield a handful of KW, so standard injectors and pump are more than adequate.
 

some_guy

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Yep, showbags is right.

Unless your going turbo, supercharged or stroked, standard fuel set-up will be sufficient.
 

Not_An_Abba_Fan

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As well as standard ignition parts too. I wouldn't go the plenum spacer either, won't do much.

All of that will make a very noticeable difference. Not to your overall kW's, but in throttle response and acceleration.
 

Schwuppes

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why no 1.9 rockers? Those alone will probably give you more gain than all that other stuff combined...
 
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