From Factory, BMW N54 Engines are not equipped to safely or reliably push more than 400HP or any excessive boost applications. For those looking to liven up this daily driver with a turbo conversion, 5150 is introducing the tested, Pro-Series Turbo Build Kit, an all-inclusive arsenal of internals custom assembled to prepare your N54 engine for high horsepower, turbocharged performance. A Kit for Every Build and Budget There is no one size fits all, which is why we offer several stages of upgrade. Through careful selection and pairing of components, we are able to offer customers a variety of kit options, catering to each build and budget. Options:  Stage 1Horsepower Rating: 700 HP - ARP 2000 Head Stud Kit- Athena-SCE Cut Ring Head Gasket- CP-Carrillo Forged Piston Set- SP Components Connecting Rods    - ARP Connecting Rod Bolts- 5150 High Performance Rod Bearing Set- 5150 High Performance Coated Main Bearing Set Stage 2Horsepower Rating: 1,000 HP - ARP High Boost Head Stud Kit**- Athena-SCE Cut Ring Head Gasket- CP-Carrillo Forged Piston Set- CP-Carrillo Connecting Rod Set- 5150 High Performance Coated Rod Bearing Set- 5150 High Performance Coated Main Bearing Set ** High Boost Head Stud Kit, it is a MUST to drill and tap the four outer 9mm holes in the engine block to increase their size to 11mm holes. This will ensure that all the engine block holes are uniform in size and can accommodate all (14) 11mm Studs. Additionally, it will help distribute even force across the cylinder head-gasket surface. Includes: (14) 11mm Studs, (14) Washers, and (14) Nuts.  Please Note: All engine modifications should be performed by a qualified professional to ensure a proper and safe installation process and a reliable, optimally performing engine. For all applications exceeding 1,000HP, 5150 recommends O-Ringing the engine block or cylinder head to ensure maximum sealing. More on cylinder head sealing here. BMW N54 Applications: 1 Series 2007-2010     E82/E88     135i2011-2012     E82     1M 3 Series 2006-2010     E90/E91/E92/E93     335i2011-2013     E92/E93     335is 5 Series 2008-2010     E60/E61     535i 7 Series 2009-2012     F01/F02     740i / 740Li X6 Series 2008-2010     E71     X6 xDrive35i Z4 Series 2009-2016     E89     Z4 sDrive35i2010-2016     E89     Z4 sDrive35is Alpina B3 Series 2007-2013     E90/E91/E92/E93     B3 Bi-Turbo Alpina B3 S Series 2010-2013     E90/E91/E92/E93     B3 S Bi-Turbo Alpina D3 Series 2008-2013     E90/E91/E92/E93     D3 Bi-Turbo