Berk Technology BT1855 4" Catless Downpipe For N55 Single Turbo 10+ BMW 135i E82

Berk Technology BT1855 4" Catless Downpipe For N55 Single Turbo 10+ BMW 135i E82

Features:

• Ultra low backpressure 4" downpipe
• 23HP gain over stock at the same boost level with no tuning devices
• 30TQ gain over stock at the same boost level with no tuning devices
• Straight shot design for zero restriction and high velocity
• Largest possible tubing for quicker spool
• Zero taper on flange at turbo for largest possible pressure differential
• Largest downpipe on the market, uses more 4" tube than the competition
• Reinforced brackets for proper support on the turbo and manifold assembly
• 100% Made in the USA
• Optional: Ceramic coatings normally used for race pistons for much greater thermal barrier protection compared to exhaust coatings

Box Contents:

• Qty 1 - Berk Technology 4" coated stainless steel downpipe
• Qty 2 - Berk Technology Gaskets
• Qty 8 - Nordlock Vibration Proof Locking Washers
• Qty 4 - Mounting Bolts
• Qty 4 - Flange Nuts