2000 Honda Accord Coupe EX 2.3L AT

Lookin to boost my 135 HP

Where can I get the most bang for my buck?

 

depends on your bucks , The old adage of speed cost money how fast do you want to go. I would not be afraid of some parts used like intakes and headers

 

Yes it all depends on the money game.It also depends if your going to use this car as a daily driver or not.
Blower superchargers, larger fuel system with custom fule rail, intake pipe and header, high output ingnition system and the list goes on...

 

I thought the EX came with 150hp ? Intake, exhaust, header are a few basic item for bolt-on, since it's an auto you won't see much in gain at the wheel though, and auto trans for 98-02 are very weak.

 

also remember this when buying parts...


cheap


fast


reliable


...You can only have 2 of the 3.
Your biggest mod you can do to make your honda little bit faster will be a 5speed swap. Your not adding any power but your free up lost power that the auto eats up. You will all ways see a 20-30% drive train power loss.
If you want bang for buck nitrous will be your best bet. But you won't have the extra power all the time only by a press of a button.
But your accords weakest link is your auto trans. If you plan on putting down anymore power then 10hp I would do a 5speed swap. Then your not really held back by your trans. At the point you can turbo/juice it just without having trans issues.
If your not interested in doing a 5speed swap I would stick to the basics

a GOOD header

A GOOD intake

Ported intake manifold

Bigger TB port matched to the plenum

Exhaust (if you don't plan on getting a tune I would not do this mod. You will run rich all day every day)

Street tune
All that should yield you around 10hp

 

I think I'm gonna go with a AEM Air Intake & Cat-Back Exhaust for now
Based on product descriptions and reviews, said they should gimme about 15 HP

 

there is no way you will pull 15hp from a CAI and cat back. Maybe if you got a killer tune you might can get 10hp out of both of them. But with both thos mods you will get like 5-6hp

 

Even if you could get 15hp from CAI and catback, it won't be wheel horsepower but crank hp, you might see like 5hp increase at the wheel. Only a dyno machine can tell how much gain in whp, if you can get it done before and after the bolt-on, then you will know for sure how much gain in hp. You should be seeing around 114 whp stock for auto.