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Old 12-19-2012, 08:45 AM   #44
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Join Date: Jun 2011
Location: Ireland
Posts: 215
My Ride: ESS TS2 325ci
Originally Posted by PEI330Ci View Post
More info...ok.

It's possible that the cats have been the issue.

It's also possible you have an oversized pulley for the TS2+ kits by mistake. (The TS3 kit I think was set at 13 PSI, but needed different cams and aftermarket headers.)

I would want to fit the headers with the engine out, but before you do that you need to figure out if your existing CATs are bad. It would be a bit silly to replace them, only to find you had the same problem. (Overboosting)

Maybe consider sending the headers back to the manufacturer to have them checked?
Sorry I think i have confused you, By headers I mean the OEM Manifold. I have standard manifold then eisenmann mid section and muffler so if the cats are bad on my BMW manifold how would I know?
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