BoostLine 5.657in Connecting Rod for Mitsubishi Evo X 4B11T, ARP 625+ - MI5657-905S+

BoostLine MI5657-905S+ is a single connecting rod for Mitsubishi Evo X 4B11T applications. Manufacturer data specifies a 5.657 in center-to-center length, 0.9055 in wrist pin diameter, 52 mm crank journal diameter. This configuration uses ARP 625+ rod bolts in a 3/8 x 1.600 size. BoostLine standard-series rods use forged 4340 steel and the brand’s patented three-pocket design for demanding performance engine combinations. Listed weight with bolts is 622 g.

Key Features & Specs:

• Brand: BoostLine
• Series: BoostLine
• Product Type: Connecting Rod
• Engine Application: Mitsubishi Evo X 4B11T
• Quantity: 1
• Material: Forged 4340 steel
• Center-to-Center Length: 5.657 in
• Wrist Pin Diameter: 0.9055 in
• Crank Journal Diameter: 52 mm
• Big End Bore: 2.1655 in
• Big End Width: 0.861 in
• Small End Width: 0.782 in
• Rod Bolt Material: ARP 625+
• Rod Bolt Size: 3/8 x 1.600
• Rod Bolt Part Number: BT61601-625
• Weight With Bolts: 622 g
• Manufacturer Part Number: MI5657-905S+
• UPC: 00193564024138

Fitment:

• Mitsubishi Evo X 4B11T engine applications

Series Description: BoostLine connecting rods are forged from 4340 steel and use the brand’s patented three-pocket beam design, developed to support high cylinder-pressure performance applications while controlling rotating mass. The standard BoostLine series is positioned for demanding forced-induction, nitrous, street-performance, and racing combinations. Application-specific ARP fasteners and dimensional CMM inspection are part of the product program; exact dimensions and bolt grade vary by part number.