– EGR delete
– TGV delete
– 3-port EBCS
– Stock intake/exhaust
– 93 octane
XRT is the only Tuning company beside Cobb Tuning to demonstrate it tuning capabilities and the release of tuning information to the World before any other tuning companies. In fact, tuning companies requires Cobb Tuning to support these models. XRT don’t! Thats being innovative and creative!
Please also note XRT is a Cobb Protuner and we support tuning of the Subaru Ascent using the Cobb Accessport.
In respect to our research and development (as shown at the very below) on the Subaru Ascent & the FA24DIT operating in this vehicle, we are offering Stage 0 and 1 tuning support to owners with the following requirements:
- Tuning that does not require a device to be installed in the car
- Improve driveability with clear objectivity in engine response
- Improve Fuel Mileage
- Reduce throttle lag
- Better sounding throaty engine
- A little more pep (Stage 1)
- Improve CVT Operations
The tuning is really considered for those not liking the small little issues as highlighted in our XRT Subaru Ascent Whatsapp group – https://chat.whatsapp.com/E1dPtXGgn3oEJAEm6P3aeU
Stage 1 Development Tuned
Rom ID: AZ1J500V
Car Weight: 1540kg
Driver Weight: 105kg
Total Weight: 1645kg
XRT Stage 2
Process West Verticooler
X-force turbo back exhaust (awaiting install)
Adjustable GFB deceptor Pro II BOV
Process West Cold Air Intake w/K&N Filter (WRX/STi 2008-14) (PWCAI04)
Version: Cobb v2
Car Weight: 1588kg
Driver Weight: 190kg
Total Weight: 1778kg
Im not really sure where to begin as everything about Ed and my tuning experience with XRT has been nothing short of…
Cobb V3 Accessport
XRT Stage 3 Full Speed Density Cobb Tuning
Custom NVS rotated turbo kit.
3in Custom NVS down pipe and cat back to Stromung Y pipe and Quad tip mufflers
Garrett GTX3076R Gen I W/ Tial .63AR Hot side, 4in Anti Surge inlet
4in custom NVS intake with K&N air filter
Custom NVS up pipe
Perrin 3.5in front mount intercooler
PTP Turbo blanket and titanium heat wrapped up and down pipes
Stock exhaust manifold
44mm Tial external waste gate plummed back to exhaust.
EJ257 case halves
Cosworth Stock bore pistons 9.5:1
King rod and main bearings
Killer Bee oil pickup tube and oil baffle
11mm high flow STI oil pump
Stock 2007 OBXT cylinder heads and camshafts
Supertech Sodium Filled Inconel exhaust valves (stock size)
Supertech stainless intake valves (stock size)
Supertech Titanium dual valve springs, seats, and retainers.
Cometic .040mm thickness head gaskets
ARP 625+ headstuds
STI rotated intake manifold
Grimmspeed 3 port EBCS
Stock Map sensor
JDM TGV deletes
Tial vent to atmosphere BOV
IAG Competition AOS
DW300 Fuel pump Hardwired to battery
Stock topfeed fuel rails and FPR
ID1300X fuel injectors
Parallel routed fuel lines
Koyo Radiator and cap
Perrin overflow tank
Optima Red top battery
SPT oil cap and battery tie down
AEM UEGO AFR gauge mounted in AVO dash pod
2006 USDM Spec B full interior swap
2010 LGT rear view mirror
LGT suspension with rear upper and lower control arms
All subframe and rear cradle spacers removed.
2004 Subaru STI Brembo front brake calipers
DBA 4000 T slotted STI front brake rotors.
Stainless steel front and rear brake lines
18X8.5 +44 SSR GTX01 wheels
SSR Aluminum lug nuts
255/40/18 Bridgestone Potenza RE760 tires
Cobb AP Stg2 replaced by XRT ECU Stage 2 Tuning
XRT 5EAT Tuning
Tomei Equal length header, Tomei Up-pipe
VF52 turbo, mild porting of exhaust
Turbosmart compact recirculating BPV (not a mod really but…)
Cobb Catted DP, stock mid, STI mufflers
Stock airbox and air filter
OK we are close this one was good!
Town driving–Throttle response is still nice and strong-nothing changed there and that is good. A little jumpy in S# at ~25% throttle around 3K in 2nd and 3rd BUT** it’s very responsive to input and i don’t have the most steady foot on bumpy roads:-) doesn’t do it in S mode so yeah…my foot lol!
3rd gear pull– Only 1 single instance (single cell) of ping (-1.5) right before peak boost. a few -1.5 cells as I lifted off throttle at 6000rpm. Feels Strong.
How it feels on the 3rd gear pull–pulls harder as the boost spools up–perfect!. It feels like it hits a shot of Nitrous about 4600RPM as it transitions from 8.5degrees to 10.5degrees of timing. It’s subtle, not a surge, but I thought I’d point that out.
Roll on acceleration about 3000rpm—amazing in all gears. I don’t really feel that transition in this circumstance.
2nd gear is just nuts. I never really tried it before at WOT. SO yeah, nice one!
Shifting–under load, nice and sharp and quick. I don’t know if it’s possible to tune this—-> but it would be nice for the trans to respond faster to paddle inputs, especially at light load around town. No big deal though;-)
Alright, well where do I start? As we are getting close to the end of the tuning process I’m thoroughly impressed. Ed’s knowledge and feedback to my queries has been fantastic. He’s quick to respond and I challenge any tuner to provide such good customer support! Feedback is nearly immediate and revisions come daily (sometimes more often!).
I urge any Cobb tuned customer to consider XRT. If you have an 5EAT or if you are Cobb tuned on Canadian petrol, you need to contact XRT tomorrow!!
My Cobb stage 2 provided predictable, modest power improvements as advertised from Cobb. However, as predicted, the pinging (feedback knock, fine knock learning) was endemic, over all grades of petrol. Only after a couple revisions he had the power far above Cobb’s tune, and a transmission that provides strong, fast shifts. We are onto Rev 5, and the power keeps building and I’m getting zero pinging under all conditions, on standard Canadian 91 petrol! And the shifting and throttle response are unreal. Night and day over an Off The Shelf tune…. BRAVO Edward!!!!