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Originally Posted by 2K3_Boxster_S
NHP exhaust is fully bolted up.
Headers with sport cats, bypass mids, Exhaust.
Bolted up and fit perfectly. no leaks from headers or mids.
All four muffler clamps that connect the U pieces from the Mids to the rear exhaust LEAK!. THERE SUPPLIED CLAMP IS GARBAGE, and you re-use 2 of the OEM sleeve clamps which also leak. $2k the exhaust should not leak anywhere.
Next: they guarantee no CELS because all 4 O2's are reconnected. Wrong, after about 100 miles. now throwing a CEL, going to check it tommorow OBII scanner. almost sure it is going to say O2. will see.
Can't wait to here there explantion for the exhaust leaks. Gd dmn ridiculous.
Trying for DYNO with AFRS this FRIDAY. DPT tuning Chesapeake, VA.
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Just a thought- can you reuse the factory u-pipes and clamps? That way, you could at least guarantee no leak. Maybe the aftermarket u-pipe diameter is a little bit smaller than OEM, which causes the leak?