Eliminate dangerous boost leaks and permanently fix your engine's most vulnerable vacuum path with this billet check valve and T-housing bundle.
10X Entries Into Our F80 M3 Sweepstakes
Eliminate dangerous boost leaks and permanently fix your engine's most vulnerable vacuum path with this billet check valve and T-housing bundle.
10X Entries Into Our F80 M3 Sweepstakes
3-way breather hose at sits on top of the valve cover
For models with AWP engine code - Up to the 2002 model year
90 degree breather/air hose that attaches to valve cover
For models with ATC engine code only
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
08-31-2026
Connects the oil filter adapter to the three-way valve housing
This product was last offered at the strikethrough price on
05-07-2026
Connects to 90 degree valve cover breather hose
Fits models with AWP engine code from the 2003 model year
This product was last offered at the strikethrough price on
05-07-2026
Connects the oil filter adapter to the three-way valve housing
We Price Match - Give Us A Call or Chat!
3-way breather hose at sits on top of the valve cover
2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For models with AWP engine code - From the 2003 model year
"S" shaped breather hose that is attached to pressure regulator valve, OEM part #'s: 06A 103 221BR or 06A 103 221E
2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For models with ATC engine code only
Suction Pump
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Resides under intake manifold, common leak area
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
08-31-2026
90 Degree or "S" shaped breather hose
For models with AWP engine code - From the 2003 model year
This product was last offered at the strikethrough price on
05-02-2026
'T' shaped connection below the intake manifold
2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Attaches to crankcase breather valve
2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For ATC & AWP engine code models - Up to the 2002 model year
3-way breather hose that sits on top of the valve cover
For models with AWP engine code - Up to the 2002 model year
This product was last offered at the strikethrough price on
06-19-2026
3-way breather hose at sits on top of the valve cover
2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For models with AWP engine code - From the 2003 model year
From T fitting to hose connected to the valve cover.
2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For models with AWP engine code only