t0e

iTrader: (1)

Seriously. Just get a custome exhaust. I really feel it would be worth it. And you wont have no one to complain about it, but to your self

Oh btw, I have a Joe-z Intake / Blitz (no-oil) drop in filter + LMS exhaust (which will be customized to my liking).

kashracing

As of now, I have a LMS Intake...Soon to become LMS Intake with a Tanabe exhaust and High Flow Cat

Gernby

iTrader: (1)

What makes you think a high flow cat(s) will help? That may actually reduce power unless you have forced induction.

glilly

Tanabe exhaust w/ K&N Typhoon intake (well eta is Thursday).

Greg

kashracing

what makes u think it will reduce power

Gernby

iTrader: (1)

I didn't say that I thought it WOULD reduce power. I said that it MIGHT.

My previous car was an S2000, with has a single cat AND much higher HP / liter than the 2IS. It didn't respond well at all to "high flow" cats unless it was FI. People that replaced their cats with straight pipes got zero gains, and people that installed high flow cats lost power (unless they REALLY needed the higher flow due to FI).

Car manufacturers have gotten REALLY good at designing intakes and exhausts for optimal efficiency and sound. I believe that they do intentionally sacrifice power to reduce sound, but they don't skimp where efficiency or emissions are concerned (the area you are talking about). I'm very confident that Toyota did a great job designing the cats for the stock flow characteristics, and you won't change those flow characteristics significantly unless you go FI.

kashracing

I agree with you fully but you will never know unless you give it a try.

Gernby

iTrader: (1)

Or you could / should wait for someone ELSE to give it a try. I'm not trying to prevent you from trying it, but I doubt you would report any positive proof that it did any good (via dynos or track testing). I'm not wanting to judge you, but I noticed in your sig that you installed a grounding kit, which I believe just added unnecessary weight to your car, and removed it from your wallet.

BTW, The IS has "shocks" not "struts". You should update your sig to say "LMS Front Shock Tower Bar (Black)", not "LMS Front Strut Bar (Black)".

lexKimmel

Any thing about an HKS and a Borla any info. I need a good system.

Gernby

iTrader: (1)

Do you need a better system than the others that have posted on this thread, or do you just want a better system?

I certainly want a better intake, exhaust, cat, wheels, brakes, tires, and butt plug, but I'm not going to say that I "need" it. :P

DRIVEN1

Doesn't anyone have the HKS exhaust that Lexus supposedly offered with the late 2006 models? I never hear talk about this exhaust. It is all about the Tanabe (which is not a full exhaust system) and the LMS? I thought HKS was a upper end brand too? Any comments. . .

Hip_hop77

Planning one Fujita and Tanabe.. waiting on exhaust... maybe hks or borla?? see wat they are comin with

MeTrO

Fujita/Tanabe....the PROVEN biggest HP gains!


......(insert negative comments from Gernby here)

Gernby

iTrader: (1)

That's pretty damn funny!

Hip_hop77

how does it sound?? dats what im plannin on..
did u get the intake first or the exhaust?? and is the combo working..soundwise... and feel any gains?