Well i have a bolt on list of all bolt ons for hte 420A. so i though i would post incase i worgot one. Now these are just HP giving bolt on i know thier are others but these are the ones just to give you HP. Also maybe this can help out newbies

Cold Air Intake
Performance Throttle Body
Performance Intake Mainfold
Crank Scraper
Grounding Kit
Under Drive Pully
Alumin Fly Wheel
Performance Coil Pack
Performance Wires
Headers
TestPipe/Hi Flow Cat
Cat Back Exhaust
If you have a 97 MTX like me, Then the AF/X ECU
Also if someone decides to go this route then gets A done up head and some nice Cams.

Hopefully i didnt forget anything

Good list. You might want to break in down into bolt-ons that add hp and ones that free up the hp you've got. i.e. flywheel, udp free up hp, but afx, tb add it.

It looks as though I've still got some shopping to do! :P

Good Idea

Cold Air Intake-Gives you HP- Allows more ait to flow to the engine

Performance Throttle Body-Gives you HP-Also allowing more air to flow to the engine

Performance Intake Mainfold- Gives HP- Same as above

Crank Scraper-Frees HP-im not sure 100% how this works i read up on it but the engine has to work less for oil or something like that! I really dont know LOL

Grounding Kit-Frees HP- It grounds out the car so everything runs smoother

Under Drive Pully-Frees HP- basicly your crank doesnt have to turn you heavy stock pully. Instead it gets to turn a nice light aluminem pully

Alumin Fly Wheel-Frees HP- again instead of turning the stock heavy flywheel it gets to turn the light aluminem one

Performance Coil Pack-Not sure- This , the wires and plugs arnt really big Hp givers at all. thier more to help you rev smoother and easier

Performance Wires- see above

Headers-Gives HP-allows exhaust gas to leave the head less restricted

TestPipe/Hi Flow Cat-Gives HP-allows exhaust gas to leave the head less restricted

Cat Back Exhaust-Gives HP-allows exhaust gas to leave the head less restricted

AF/X ECU-Gives HP- this advances timing to Give you a little extra ummmffff

done up head and some nice Cams. -Gives HP- allows more air to flow easier to the Head

Bravo!! nice list dood. didn't know about a couple of those things.:thumbsup

No Problem!!! Thats what its thier for. Im plaing on getting the hole list after all is said and done. With some cams and porting. I hope to be in the Very High 14's all motor. Also i own an avenger and am a tad bit heavier then you 2gnt guys around hear, lucky bastards lol.