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tocinoman25 11-30-2012 11:03 PM

Will I need any other supporting mods??
Greetings LGT guys and gals! I finally made a purchase on a catless Invidia DP, grimmspeed uppipe, and 3 port EBCS along with all new gaskets. Will install myself and go for a tune at 6 star motorsports by spring...My question... is it necessary for injectors and fuel pump as well to maximize the parts i will be installing? I am on stock turbo and no catback as I want to be stealthy...thanks!

Gex 11-30-2012 11:18 PM

You should be just fine with a tune on stock fueling. Might look to upgrade your intercooler.

06legsleeper 12-01-2012 11:44 AM

hope you have a coob tune for now.. your going to throw codes all the time . and its prob not going to run well till you get tuned

i just did a cat back, catless dp, sti up pipe... on a cobb stage 2 ots map.. runs great ... i cant imagine doing that then not having a tune at all ...

o and your going to love the sound of the turbo after you do that catless dp ... love how mine sounds

think our injectors can give the stock turbo all it can handle flow wise .. dont think we need injectors till we go bigger turbo

babybluelgt 12-01-2012 12:40 PM

You might want to throw a pump in there just to be safe, although it probably isn't necessary. If you do decide to put one in I have a Walboro 255 I could sell you considering I don't need 2. Brand new.

jasejase 12-01-2012 12:46 PM

Many ppl at stage 2 go with a fuel pump for a piece of mind. However, it's not a must have at all. especially since you have a newer 4th gen.

You dont really need the ebcs either.

If you could find a good deal on the tmic, your car will benefit from that a bit. Otherwise, most ppl dont touch their tmic's at stage 2.

Why would you replace the up pipe? 07-09 were catless.... So no benefit in replacing the up whatsoever.

In an 08, all you really need is a downpipe, and a tune. Personally, i would take the other money you have set aside for your up, ebcs, etc... and get endlinks and sway bars, so you can control your new found HP a bit more.

tocinoman25 12-01-2012 08:41 PM

got endlinks, and sways already and springs from all of the infamous performance GB =)
thanks for the info...i will check if i can edit my purchase on up pipe

iNVAR 12-03-2012 05:22 AM

I agree, no need for UP. Strongly suggest reinforcing TMIC, or replacing it with an ugpraded one. Otherwise, beware of endtanks blowing out.

johnAWD 12-03-2012 06:07 AM

You'll be fine.

jasejase 12-03-2012 06:08 AM

A conservative tune, and the tmic should be fine.

BarManBean 12-03-2012 06:37 AM

What others have said--no need for UP, and no need for fuel mods at this point. Regarding the EBCS, you should really ask your tuner rather than folks here. That will be the most important factor in weather or not you should install that bit. For your intercooler, see my signature.

Make sure you have all new gaskets as well. If you nix the UP, you'll only need a DP-to-turbo gasket and possibly a new donut gasket for the DP-to-midpipe connection. Do you have an adapter if required for that connection? I believe the invidia DP is 3" and the stock midpipe will be 2.5".

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