JCW jcw gp 2 diffuser
#352
I verified today that the GP2 indeed does come with the front under panel that I mentioned earlier in this thread.
Here's a pic I took.
Attachment 72841
Here's a pic I took.
Attachment 72841
-Steven
#355
I noticed that to Steven. It looked like 2 resonators to me but I could be wrong. No one seemed to know, lol, go figure. The only reason I leaned toward two resonators was that it looks like the rearward most resonator in the pic looks shorter than our stock JCW resonators. Maybe I'm wrong as I haven't looked at one for a year or so (mines gone). I meant to get measurements of the total exhaust too to see if it was actually something like 2.5" or the same diameter as the stock JCW.
As for a part number. We looked everywhere we could minus taking the underpanel off and couldn't find one. The dealer is looking into it though. So far he's found no clue.
As for a part number. We looked everywhere we could minus taking the underpanel off and couldn't find one. The dealer is looking into it though. So far he's found no clue.
#356
I noticed that to Steven. It looked like 2 resonators to me but I could be wrong. No one seemed to know, lol, go figure. The only reason I leaned toward two resonators was that it looks like the rearward most resonator in the pic looks shorter than our stock JCW resonators. Maybe I'm wrong as I haven't looked at one for a year or so (mines gone). I meant to get measurements of the total exhaust too to see if it was actually something like 2.5" or the same diameter as the stock JCW.
As for a part number. We looked everywhere we could minus taking the underpanel off and couldn't find one. The dealer is looking into it though. So far he's found no clue.
As for a part number. We looked everywhere we could minus taking the underpanel off and couldn't find one. The dealer is looking into it though. So far he's found no clue.
-Steven
#358
#359
We took Algy with his new diffuser out to the track (Laguna Seca) on Tuesday. The photographer seemed to be trying to get a look at the diffuser. He's never taken pictures of the "Corkscrew" from this angle before.
I don't know if the diffuser made any difference, my wife's lap time improved by 2 seconds, but I couldn't get within 2 seconds of my best.
I don't know if the diffuser made any difference, my wife's lap time improved by 2 seconds, but I couldn't get within 2 seconds of my best.
#365
The two sideways screws that holds the original "diffuser" and also snapping the GP diffuser into place. I'll do a write up on the hard parts later tonight.
#366
#368
Okay. So here are some of my thoughts regarding the installation. There were (2) things that were difficult, but after a bunch of trial and error, I was able to figure out the best way to go about it.
1) There are two screws that attach the "old" diffuser to the bumper. They are on either side (driver & passenger). It's sideways and really tucked in.
Here's the "interior view" of the location of one of the screws. It is the one on the driver side:
That zig-zag line that I drew in is where your screwdriver would need to be inserted. But there's literally no room to fit any normal sized screwdriver. So if you can't, you want to have more space to work with. So what I did was take off this small plastic piece right below the bumper. It is held on with (2) tabs. It pops on and off quite easily:
Here's a photo of where that piece is located (and you can faintly see my 1/8" hex bit near the red line):
After taking off that piece on either side, you will have room for your hand to work with the 1/8" hex bit. Because I didn't have that small of a screwdriver, I used a nose plier and twisted it until it loosened up. Then I was able to just use that 1/8" hex to hand twist it off.
Here's another view from the other side of the screw:
Remember, you will have to put this screw back into the same place on your new GP diffuser.
2) It's very hard to snap the new GP diffuser into place. There are these tabs that need to snap in but as you push in, your whole Aero bumper flexes so you can't get much leverage. The best way to go about this is have one hand to push your diffuser in and use your other hand to reach back to hold your bumper in place.
Here's a view of where your fingers should push back on the "inside" to create the counteracting force (you can see (3) tabs in this photo):
Hope that helps along with Scooter's write up.
1) There are two screws that attach the "old" diffuser to the bumper. They are on either side (driver & passenger). It's sideways and really tucked in.
Here's the "interior view" of the location of one of the screws. It is the one on the driver side:
That zig-zag line that I drew in is where your screwdriver would need to be inserted. But there's literally no room to fit any normal sized screwdriver. So if you can't, you want to have more space to work with. So what I did was take off this small plastic piece right below the bumper. It is held on with (2) tabs. It pops on and off quite easily:
Here's a photo of where that piece is located (and you can faintly see my 1/8" hex bit near the red line):
After taking off that piece on either side, you will have room for your hand to work with the 1/8" hex bit. Because I didn't have that small of a screwdriver, I used a nose plier and twisted it until it loosened up. Then I was able to just use that 1/8" hex to hand twist it off.
Here's another view from the other side of the screw:
Remember, you will have to put this screw back into the same place on your new GP diffuser.
2) It's very hard to snap the new GP diffuser into place. There are these tabs that need to snap in but as you push in, your whole Aero bumper flexes so you can't get much leverage. The best way to go about this is have one hand to push your diffuser in and use your other hand to reach back to hold your bumper in place.
Here's a view of where your fingers should push back on the "inside" to create the counteracting force (you can see (3) tabs in this photo):
Hope that helps along with Scooter's write up.
#369
#370
#371
Let me know what trouble you had with installing the front Challenge splitter? Maybe a new thread?
#372
#373
No worries, it got easier to take on and off over the time I had it. It was the initial install which was the hardest because of how long the base was. Definitely needed an extra hand to push the bottom of the bumper while you tried to get the clips to snap into place. Good thing I had the bumper off at that time when I was getting it installed
#374
#375