What's the fastest way to increase HP on an IS300? I want to do it without my dad knowing. hehe.

Swap it for a GS430:lol::lol:Your dad will prolly notice - but I bet he won't mind.

I don't think my bank account would allow for that. Other than getting another car, how do I increase HP?

really its a difficult one to say.......without your dad noticing...............

i would say new rear muffler,and airfilter/induction...............

however that will be noticed,how noticable can it be:?:

Yeah, I was thinking about an HKS muffler like this one. http://www.suprastore.com/hkscartithip.html

Well, I picked out a few things from suprastore.com to save up for.

Swift Air Intake
HKS titanium/carbon Fiber exaust
Rod Millen Body Kit
332mm daimeter front brake kit
-2.1 inch lowering springs
:D:D

And it only comes to $4555.90!!!!!!!!!

:DSo how much of that do you reckon you can fit without your dad noticing??:D

Nothing. I told him abut it and he seems ok with it. BUT he said that doing anything like that to a car voids the warranty. Can that possibly be true?:?:

yep

:flaming:

Why does it? I really want to smoke my friend's RSX when he gets it.

Engine mods I am sure of... not sure about exhaust...

At least they're not picky about the exterior. :bounce: I still don't understand why it voids the warranty even if it IMPROVES the engine's performance. And most of the stuf is just bolt on stuff. I guess I could take it off before I go to get it serviced every time.

Actually guys - the warrannty thing is only strictly true in the UK (and possibly EC).
It's illegal to void a warranty in the US unless the warranty holder can prove that the modification was directly the cause of any problem. So (for instance, Lexus could not void the warranty on the gearbox for fitting an aftermarket exhaust etc etc).

ahh yeah I read that somehwere on this forum now you mention it...

I thought that applied here too Rodders?

You might be right Zee - maybe Chris S can put us straight?

yes it was me that stated that ...........

its a very fine line between what is and what isnt ...a breach of warrenty,however i have been told by someone in the Toyota Corp,that as with USA it is now the responsability of the manufacturer to prove that a modified part is the sole cause of failiure.

no longer can manufacturers take the blanket warrenty stance with a automobile.

Any idea about what's the deal in the UK Mat?

same rules apply.............:cool:

This is what Lexus UK said when I e-mailed them:

"Further to our telephone conversation recently regarding modification to your
IS200 Sport I have now spoken to Technical and Warranty departments. As I said
initially, Lexus do not recommend any modifications to their vehicles, but in
any instance of an alteration it will only affect the warranty
if a problem arises directly from the changes you have made. In which case that
particular part or parts will not be covered, and any work related to that will
be chargeable."

Cool!:bounce:

More mods for you then Rodders:D

yes mate - on the list so far:-

Speaker upgrade (tomorrow)
HKS Exhaust
HKS Intake
New Grill

Sounds awesome mate. Try to do them before JAE so we all can drool. No need to wash your car then:D

I'm GUTTEd to say that I can't make JAE - gonna be in Europe on hols with wifey and the kids. this is a TOTAL bummer cos Billing is only just up the road for me:(

Doh! next show then?

For sure mate!!:bounce:

here's what i'd suggest without boosting the car..

Exhaust.. get a quiet one like the TOMS barrel or TRD.
Air filter.. SARD and TRD make replacebale filters for the IS200

and once you have more money.. headers, and final gearing would be a good combo.. or you can go with a SAFC...

I thought the SAFC cannot work with the Is200?

it can't ??

Nope, only with the RS200. The 1G engine has got a very limited number of 'off-the-shelf' electronic mods unfortunately.