Just some info for anyone considering the MDS delete and installing the blocking plugs.
First, if you can, get the OEM versions of the plugs. They have better o-rings
Second, loctite the threads on the retaining bolts
Third, and this is just my advice/YMMV, do a dab of black RTV on the upper o-ring area...
I deleted mine about two years ago, and have been fighting an oil leak lately. Couldn't really tell where it was coming from. I was worried I was leaking from the rear main seal because from underneath it looked like oil was coming from the back of the engine and getting on the the trans and crossover pipe. No good! Finally noticed a little pool of oil in one of the low areas under the intake manifold. Stuck a bore scope under there and found most of the MDS delete plugs were leaking, and the oil was pooling/finding its way to the back of the engine and dripping down. Pulled the manifold, found that the bolts were only on finger tight. Installed OEM plugs, little bit of black RTV and red loctite, leak is gone...
First, if you can, get the OEM versions of the plugs. They have better o-rings
Second, loctite the threads on the retaining bolts
Third, and this is just my advice/YMMV, do a dab of black RTV on the upper o-ring area...
I deleted mine about two years ago, and have been fighting an oil leak lately. Couldn't really tell where it was coming from. I was worried I was leaking from the rear main seal because from underneath it looked like oil was coming from the back of the engine and getting on the the trans and crossover pipe. No good! Finally noticed a little pool of oil in one of the low areas under the intake manifold. Stuck a bore scope under there and found most of the MDS delete plugs were leaking, and the oil was pooling/finding its way to the back of the engine and dripping down. Pulled the manifold, found that the bolts were only on finger tight. Installed OEM plugs, little bit of black RTV and red loctite, leak is gone...