I spoke with BEGi and they stated to send them in pics and proof that the 1996 had a CARB legal kit purchased from them to pass D-349-1 so I could get a sticker mailed to me (originally purchased in 2002 by PO)... been a few weeks now and haven't heard anything back. I'm working on getting the EGR, MAF, Charcoal Canister, and approved CARB OBDII Cat on the car.
I'm currently running RC 550 CC injectors and a Walbro 255 LPH HP pump from previous owner with MSPNP1.
What I'm hoping to do (and this all comes down to getting the sticker from BEGi) is get this all together but my questions are:
1) I've looked and it seems I found a good deal on a Xede unit that could allow me to swap it in with my stock ECU and wire the MTX-L O2 sensor analog signal in to simulate the stock sensor. Will this work for CARB if done right?
2) I've looked at Catalytic converters in the ARB database, and the biggest they have approved is the 408006 model by Magnaflow (2.5 in/out). Is anyone aware if another 3" CARB legal cat will pass even if it is for a "different make/model car"?
$113 needs to have flanges added
RoadsterSport High Performance Miata Catalytic Converter-CALIFORNIA VERSION for Miata 1996-1997
$289 bolts right up (but is technically a 2.25 in/out from Magnaflow's website for the 408005 core but not sure
3)Should I even be concerned with getting a Cat that is bigger than 2.5" if the rest of my TBE is 3"? Will it really matter at the end of the day?
Sonofthehill has been an excellent source of help and I appreciate the locals trying to help me get this through to pass, if this fails, I'll just give in and pull injectors/fuel pump (overload stock injectors from what I've read) and go back to stock for passing CARB every two years like what has been suggested. Just wanted to see how far off base my grand idea is.