Lisa, I am about to install the catback MBRP Race Exhaust system. I am in favor of XR-1 over the Accessport V3. Any ideas on how XR-1 will behave with the MBRPs?
If you're going to tune your car, do it right and get a custom tune from Tune+, LMS, Lund, Unleashed, Ford Pro Cal, etc... You'll get better power gains and it'll be safer than just upping boost.
Thanks for the advise. I am new to the idea of having my car tuned. I did a brief internet search on what you suggested and Ford ProCal seems the best approach. Apart from obtaining better power gains, you also maintain the car's warranty. I thought that tuning from Ford Performance was not offered yet for European Mustangs, but I was wrong. I will talk to a local Ford dealer to get additional info.
You'll get by far the best results with the Accessport, you also have 99% less chance of blowing your engine then with the XR-1 and with the Accessport you'll get launch control, flat foot shifting, on the fly map-switching and a burnout button for freeThanks mtoo22. Actually getting additional boost is why I am doing all this modifications (aren't we all?). I am looking into which one of the two (Accessport V3 or XR-1) will provide the best results (better hp and torque) with the modifications I described.
The problem with above statement, is the ECU is getting tricked into thinking its boost is not yet up to max point, so it increases duty cycle on boost signal.
What makes you say it is not a good product. Im sure you have no problem with a custom tune modifying the throttle signal to be more aggressive. Im certainly not excited about the cost but finding a good used one for half price is the best performance mod I've done. It does add quite a bit more power at anygiven pedal position up until full throttle . So for everyday part throttle driving, the car is actually on par with the gt I drove. Full throttle is certainly a different story.
