BMW N52: N54 Intake Manifold Dowels Set | IMD52

These in house made intake manifold dowels / eccentric inserts are made by PrintablesAuto for a BMW N51/N52 and are made to allow the alignment of the N54 twin turbo intake manifold to the block of the N51/N52

1 order provides 7 dowels replacements. (2 extras) (center hole of manifold does not need one)

Do not forgot your PCV heater spacers and washer! Available separately or with full hardware kit HERE

The N54 Manifold Swap Thread

Customers looking to add a N54 Manifold can expect a higher peak in horsepower while sacrificing some low end torque in comparison to the stage 3 intake manifold*.

Recommended for manual transmissions (OR 325i or 330i automatics) as this allows you to gain some more peak power by tuning the redline to 7500rpm while the 328 automatic transmission will be limited to 7000rpm

For a N52 turbocharged or supercharged build, it is highly recommended for the N54 manifold for its design for boost and for the reliability of less moving parts (I.e. DISA valves)

For Installation:

Fitment is snug, often locking into place, but recommended to add some black RTV to the outside of the dowel before inserting into the manifold.  RTV will help it keep it rotation, position and help prevent dropping when removal. Outside texture bumpy on purpose to help with locking and RTV adhesion. 

Fitment*:

(E81, E82, E87, E88) - 125i, 128i, 130i

(E85, E86) - 2.5i, 3.0i

(E90, E91, E92, E93) - 323(x)i 325(x)i, 328(x)i, 330(x)i

(E60, E61) - 525(x)i, 528(x)i, 530(x)i

(E81 X1) - xDrive25i, xDrive28i

(E83 X3) - 2.5si, 3.0si  

*results may vary without accompanying tune.

Lifetime Warranty - Made out of ASA.

PrintablesAuto Part Number: IMD52