| dMuze | 11-16-2010 04:54 AM | My review of the UR Turboback (catted) for Genpu 1 Attachment(s) This is the review i sent to UR after the install. I hope it solves future CEL issues with their system...
good morning, i wanted to write and give some feedback on my recent purchases. over the last month i purchased your test pipe, ceramic catted dp and cat back for the 2010 ms3. shipping on all items was really fast. they all arrived within 3-4 days of the orders. packaging, welds and fitment were all as expected. install was much easier then expected. the TP was very simple, DP was much easier than i was told it would be...i thought this would be a horror story from the forums, but i took my time and did it on a lift, alone in 4 hrs. the cat back was also simple to install after some on the phone coaching with the piece that goes over the axle.
now...i did have 3 codes pop up with a check engine light...as the site says, you dont promise to prevent one. i wanted to be sure i figured out and fixed the cause of these codes... i was reading- lean post cat, rear o2 low voltage, rear o2 slow response. these codes were making my car run super rich, afr's and trims were off...and mpg went way down. i ran a few logs and noticed the o2 voltage didnt have any reading at idle or when letting off the gas. my original intent was to drill out the bung after the cat, but after getting back up on the lift, realized this would be near impossible without messing up the threads. so i then decided to seal the rear bung and weld in another. this would put the rear o2 back in the exhaust flow, and since i have a catted dp...should avoid a cat inefficiency code. i now have put almost 50 miles on the new modification...mpg, trims, afr are back to normal for a stock tune, no cel and the car pulls the way i thought it would with an aftermarket turbo back exhaust.
all in all my experience with ultimate-racing has been a great one. i am by no means a mechanic or engineer...but in my personal opinion, for the 2010 mazdaspeed3 with a catted dp, an extended diagonal rear bung will do more bad then good. i have already highly recommended your company on the mazdaspeedforums website and will continue to do so. i have shared my solution on a thread and will be posting my before and after logs this afternoon as proof. i plan on purchasing your fmic kit with crash bar this spring and really appreciate the customer service.
Dan Pare
I sealed up the original rear bung to prevent future leaks. i hope this helps you decide on a purchase. i do recommend this company. |