For those of you DIY or test pipe users stop bothering with monkey around with the dorman spark plug spacer hack for your oxygen simulator check engine light eliminator when you use a test pipe, just grab the bloc unit.

It's cheaper than buying a package of dorman spark plug spacers and it's completely plug and play.

It perfectly spaces out the factory oxygen sensor without the oxygen sensor rubbing or touching anything all for $6!!!

Here is the blox o2 sim installed on my friends ap2 with an Invidia test pipe, for track duty only of course!!!

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