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nd55
07-01-2009, 10:50 AM
Hey fellas,

I'm looking for more information on air injection/air pumps, for emissions purposes.

I know the basics, I'm more interested in what parts/combinations are available and if it's possible to bleed off some turbo boost instead of using a seperate air pump.

Nick.

PS. has anybody used a 3 stage + air injection cat converter?