I am curious to see what you guy are using for GT2 front bumpers and rear complete deck lid spoiler assemblies. I am certain unless you go OEM they are all fiberglass. I really do hate fiberglass but if thats what it takes to have them with out paying OEM money i might have to keep that in mind when time comes. So what are my options? Misha, precision porsche, and ma shaw. Question is which is the best, the best in terms of fitment durability and price? I am sure there are tons of pics out there, Could you guys with a fiberglass front end post up some of you pics? TIA --Rob

 

I think PP now has a urethane front GT2 bumper cover but I could be wrong. You need to also look into cooling duct alignment and what else might be needed before you commit. Going OEM is best but very expensive due to all of the plumbing and duct rework needed, in addition to the cost of the bumper itself. See Mike Kelly's project write up on Renntrack and Rennlist.

 

Contact raineycd. He did a GT2 front bumper utilizing standard turbo cooling. Very informative.

 

Precision Porsche's fiberglass front looks absolutely spot on.
Urethane knock offs still tend to be "wavy".

Misha's decklid+wing is best if you want OEM function with adjustable wing angle. This looks true as well only some have opinions about tiny tiny gap.

Some pics here.
https://www.6speedonline.com/forums/...etup-pics.html

 

That is not the entire truth. The bumper itself is a skin only. What you do inside of it is you choice. Some do functional conversion, some don't. Titan Motorsports have a great writeup for functional GT2 front conversion here. Using the info from that writeup I did 2 functional GT2 front conversions so far on 2 different 996TT, using Precision Porsche front bumper, GT2 radiator "inclined" position, OEM GT2 air ducting.

It helps downforce on track from 60mph and up and the faster you go the bigger the difference. 996TT build a pretty noticable air cushion under the front where as the GT2 duct in allows a big part of the air through the center radiator to go out above the hood.

A pic for illustration. On the ground the GT2 front from Precision.

 

@ Addington; not intentional to come off brash, I just wanted to avoid OP to give up his hopes of a 100% functional replica GT2 front conversion within reasonable $$. Also want to support our board sponsors who make some pretty awesome products for all of us who want to maintain a reasonable budget on certain items, like this one.

@ OP, a few details about the installation;
The PP front has a fairly long flat bottom that extends to overlap with the TT fender lining. So you can keep the TT liners with full aero "tightness". Unless you go with OEM bumper which is shorter underneath, then you have to tack on the price for those liners.

The center radiator flip and using a couple of tabs puts the center radiator in the exact GT2 position to match the rear and front ducts, so that saves a grand or smth in that range compared to GT2 brackets. It also saves a lot of work, since you otherwise have to remove the side radiator/fan assemblies and get in and swap the brackets. You don't need those parts from a GT2 to be functional as the only thing they do it hold radiators, no magic there. The difference between the two sets of parts, is that the GT2 brackets have two little ears sticking out at an angle. The function of those ears can be attained by slightly bending the TT brackets then bolting a couple of small "tabs" to the TT frames. The price factor is 3-5 times the price of the TT parts due to GT2 being a very limited series car, that's why a complete GT2 parts list as Addington describes becomes so hugely expensive. However important fact: you will still have aerodynamics like a GT2 retaining the TT parts described in the Titan mod (link below).

The top vent and lip (both OEM) you'd have to get those for OEM bumper so no difference. Front air ducts and trim pieces will be GT2 all the way or will look totally tacky. They are pretty expensive.

All in all doing it like this won't cost a fortune and it will for sure give you GT2 aero function where the center radiator outlet goes up top over the car, the underside of the car is sealed tight to linings and underfloor panels, and cooling will be just as good as before the mod

For looks it's only personal preference what you like more.

Here's the Titan Motorsports GT2 front bumper writeup. They listed both what it takes to just make it esthaetic (no GT2 aero function just looks) and what it takes for functional GT2 aero.

http://blog.titanmotorsports.com/?tag=gt2-conversion

GL and happy bumper hunting!

 

Nice post MrWhite

 

MrWhite, the side radiators on a gt2 dump there heated air into the center of the front wheel this also changes the aerodynamics. However if you just want the look non of this matters.

 

From an engineering standpoint it looks like a brake cooling issue related to wheel offset. My TT has the vents right in front of my front wheels as I look at it but a touch inwards compared to 100% centered (not measured just eyeing it) - probably b/c I have GT2 wheel offsets. With TT wheels it seems it would be centered, thus not getting hot radiator air leaking onto the brakes. The "downforce" difference once you have the air rotating in the wheel housing should be insignificant (<1%) compared to the "air cushion" improvement from the center radiator since there's no difference in outlet from the wheel housing between the two models. If you go GT2 wheel offsets it could make sense to either change the lining or block the innermost vent and maybe cut another to center the radiator air onto the tire.

 

Unless I am remembering something wrong the gt2 actually ducts the spent radiator air into the center of the wheel. pointed right into the rotor, the 200 plus degree air has no heating effect on 1400 degree plus rotors. This also aims the air out of the wheel and not in to the wheel well to wind up under the car anyway.

 

Oh yeah there are those clip-on GT2 brake cooling ducts and they mount to the lower control arms, they bring air from under the car, and deflect some air from the back of the side radiators, and duct air directly onto the rotors. You can clip those on already using the TT bumper.

http://www.renntech.org/forums/topic...brake-cooling/

https://www.6speedonline.com/forums/996-turbo-gt2/169896-need-help-brake-duct-install.html

 

the wheel-housing liner front right gt2 P# 996.504.124.90 The turbo P# is 996.504.124.00 I am not savvy enough to post the cuts of the pet. But I am sure someone is here.

 

Got the PET, definitely they are different part numbers, believe though main difference is only bottom front end where it attaches to the underpanels. That actual duct you mentioned that end at the rotor must be the clip-on ducts though that sit on the lower control arms. However it would be nice to see a GT2 liner vs a TT liner, I've never seen anything such as a fender liner with build in duct on a GT3 / RS, GT3 Cup or GT3 RSR, the latter using big ol hoses for brake cooling, but I'm still interested to see if the GT2 liner got some special solution integrated in the fenderliner, (potentially for GT2 R homologation) for the radiator outlet to improve brake cooling b/c that means it's a part to take into consideration as future mod.

 

That link is a great find, thx Addington (and Mikelly who took all the photos). Those little venturi channels that pull cool air from the ground could be a nice detail to add some day.
(http://www.renntrack.com/forums/show...-GT2-Vs.-996TT)