TrixieSX

Update: I have added thermal spacer and downpipe not long after I had the tbs on so I could not tell which parts did what but I certainly am happy with my current setup. I feel more power from the whole setup.

I wonder if new fuel rail and runners would squeeze more juice from the motor. Hmmm...

Throwdown

iTrader: (1)

Glad you are enjoying them!

One member commented on the fuel rail giving a feeling of additional power, it will help with purges in the system but gains should be moderate without upgraded injectors, etc. Small mod, but I'd recommend them for first looks and second maybe a tiny gain. It's also easy to change while you already are removing this during the ported intake runner install.

I'd definitely recommend the runners... great gains from them from everyone who has installed them and don't forget the thermal intake manifold gasket. Have all of these in stock if you need

RestraiinCT

What's up? no more pics of the CAI and the TBS installed together? I already have a CAI and I wanna know if they fit together!

Tannis

You under the right forum? Don't you have a TL?

04v8s4

That fuel rail will not increase the power output of your engine at all. Without changing the injectors and tune...a fuel rail alone will not increase power.

joejsn

Any more gain if doubling the (P2R) TB spacers on 2003 cl-s?

Dime Feng

I have a takeda Cai and the tb spacer, and yes they do fit. I will post pictures later. However, ever since i installed the tb spacer i got this annoying whistle sound when i step hard on the gas. Anyone else get this or is it just me?

iCrap

you probably have a leak somewhere.

i don't know about anyone else but i noticed 0 gain after putting it in.

curtdragon

So you guys are getting these two parts?
http://throwdownperformance.com/inde...oducts_id=5226
http://throwdownperformance.com/inde...oducts_id=3160

iCrap

I didnt do the intake runners.

Also i only payed like $30 for the spacer new off an eBay seller.

krilla929

I have an injen cai. And I had no issues installing the throttle body spacer. All I did was push the upper part of the intake a little further into the rubber elbow right by the throttle body. No fitment issues at all. I did not do the coolant bypass. As far as gains. Besides my other mods. Downpipe cat back. I can't say I noticed any difference in power. But I plan on doing a reflash. And maybe for tuning purposes. Will make a bigger impact.

justnspace

iTrader: (1)

throttle body spacers dont do jack shit.

any air tuning is done in the intake manifold and not before it.

Nexx

^ this but if it makes you feel better and youre happy with it more power to ya!.

any "gains" you feel is a placebo.

iCrap

Yea it dosen't do shit. take your $50 or whatever and light it on fire for the same result