Great list of info Geoff.

i will just jump in here and also say that anyone who thinks going parallel will solve the vod is mistaken.
many aftermarket exhaust systems delete the ECV (exhaust control valve) which is not ideal, when it can be ported etc and 200kw is not out of reach for most TT's with well planned mods and a little push.
good turbo back exhaust and an ECV and turbo entry port and wastegate enlargement is all that is realisticly worth the money, and many places will charge a kidney and then your lucky if they know what they are messing with to begin with.

the primary helps significantly to get the secondary on boost early and when in parallel full boost comes on later and no harder than when sequential.
ecept when the ECV is replaced with straight pipe and then you have mismatched turbos which also leads to lag and poor boost controll.

proper parallel needs 2 identical turbos to work effectively, those of which arent made by subaru. 2 secondarys is very laggy and 2 primarys would not have great top end power.

i know this because ive tried it.

Adrian

Nce looking setup there. No restriction at all there. Is that 2.5 inch all the way through?????


And who's this monolith????? Got any pics of the beast???? Wouldn't the exhausts coming out from infront of the rear be defectable as feck?????

988OXR;163882 wrote:

Adrian
Nce looking setup there. No restriction at all there. Is that 2.5 inch all the way through?????

Specifics are:

- 2.5" Primary dump-pipe with 38mm seperated waste-gate - modified so that its out to 3" once the seperated wastegate joins the main pipe
- 3" Secondary dump pipe
- Twin 3" Flexis
- Twin 3" Hi-Flow Cats
- Twin 3" piping to cross-over and to 2.5" reducers
- 2.5" Cross-over pipe
- Twin 2.5" system from cross-over back
- Twin 2.5" Straight Pipes with 3" tips pictured for motorsport and the sound! . Normally Twin 2.5" inlet, 3" tip mufflers.
- And surprisingly managing all factory mount points

988OXR;163882 wrote:

And who's this monolith????? Got any pics of the beast???? Wouldn't the exhausts coming out from infront of the rear be defectable as feck?????

Yes probably, but being a kiwi and living on that side of the ditch and the fact the car is a track car - probably not much to worry about. I 'think' he has possibly sold the car but there are a bunch of photos of the car in his very random photobucket account http://i6.photobucket.com/albums/y236/rexeta/ - reverse manifold, front-mount, twin secondary turbo parallel set up, parallel headers, etc.

wagons are slightly longer, that is all

as long as they are both TT it will fit, but you may need to change/move a hanger and change the length of the pipe.

also auto and manual dump pipes are different to clear the crossmembers. so best to make sure you get it right, or you may have to modify them
i found this out the hard way.

legacy rsk;166669 wrote:

i think it is the dif back that is longer.....as the muffler i have has sedan and wagon part numbers

yeah i just got my wagon diff back and the actually exhaust mouth is alot longer to clear the longer bumper. Its possible all the connections are in the same place but if you use the sedan exhaust it may sit to short, almost behind the bumper.




Ive just got a sports STi muffler tonight, im getting it installed on my car, even though i haven't even got my car yet, still being registered. In Japan this takes time.

I removed my Sti muffler already, it sounded great, but was a bit quiet. Instead, i accidently bought a Fujitsubo diff back. As i put a really low bid on it on yahoo auctions and won it. The Fujitsubo made a significant difference in power, especially from the second turbo. I cant wait to get the rest of the exhaust.

BigWillieStyles;180165 wrote:

I removed my Sti muffler already, it sounded great, but was a bit quiet. Instead, i accidently bought a Fujitsubo diff back. As i put a really low bid on it on yahoo auctions and won it. The Fujitsubo made a significant difference in power, especially from the second turbo. I cant wait to get the rest of the exhaust.

LOL...I know those mistakes!