Berk DP Question and Others Options

[XxDarkLightning]

I am in the (timely) process of doing a swap to my 98 Celica GT. I am at the part where I will be assembling manifold and am going to get the berk downpipe. My question is which one? I plan on running the stock ECU and not going to crazy with my car (for now anyway). It will be a three season vehicle here in MA. Is it wise to get the wideband o2 now in case I eventually put in a management system? Does the regular o2 sensor fit in there? Is the ceramic coating worth it or is it just marketing? Then it's a 3" outlet. Should I run 3" all the way back? I have seen that can result in boost creep.

Also:
How many gauges (and what should they monitor) would people recommend? I assume oil pressure and boost. But I see all this AFM, no AFM, temperatures etc so I am a little confused for my application.

Thanks all.

[Ted95]

I too have a fully loaded Berk DP on my 3rd gen 3sgte. i have a 2nd gen o2 sensor in the dp and up until recently i wasnt running a wideband and it worked fine.

i have my dp hooked up to a 3" b-pipe with a 3"cutout connected to a 2.5" cat back

14psi cutout closed (full exhaust) 18psi cutout open (open exhaust)

stock ecu/boost guage/ wideband

the berk dp is a great option because it has a built in flexpipe to prevent cracking.