Boostline
BoostLine Subaru EJ20/EJ25 Turbo 130.5mm - Connecting Rod Single
SKU: B07Q SB5137-905S
Description
Part #: SB5137-905S
BoostLine connecting rods are designed and built for the stressful demands of high-powered, forced induction and nitrous engines. Whether you re building a boosted K-series, a track-ready Volkswagen, or a sneaky SRT4, BoostLine connecting rods have been proven in import and domestic four-cylinder engines confidently pushing 1,000HP+. BoostLine rods are forged from premium 4340 steel and utilize a patented, three-pocket design, maximizing strength while minimizing rotating weight. This revolutionary design dramatically improves each rods big-end stability under tensile loads and provides a 60% improvement in bending strength and 20% stress reduction in tension compared to H-beam designs, benefits crucial to durability in four-digit-horsepower engines. Each rod is equipped standard with industry leading ARP hardware and is subject to a 26-point, CMM inspection with all critical dimensions provided via an inspection card included with every set of rods. BoostLine connecting rods are the complete package for every performance build, from powerful projects to all-out race cars.
Features:
- Purpose-Built For Boost High Boost and Nitrous Subaru EJ20/25 Turbo Applications
- Forged From Ultra-Strong 4340 Steel
- Patented Three-Pocket Design
- Capable of 1000+ HP
- 3/8 x 1.600 in. ARP 2000 Fasteners
- High Quality APMCO Bronze Pin Bushing
- 26 Point Detailed CMM Inspection Report Included
- Forged From Ultra-Strong 4340 Steel
- Patented Three-Pocket Design
- Capable of 1000+ HP
- 3/8 x 1.600 in. ARP 2000 Fasteners
- High Quality APMCO Bronze Pin Bushing
- 26 Point Detailed CMM Inspection Report Included
Boostline Subaru EJ Series Connecting Rod, 130.00 mm Length, 23.00 mm Pin, 52.00 mm Journal, 3/8 in. ARP 2000 Bolts, 4340 Steel, Patented Three-Pocket Design, Set of 1.
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Fitment
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Specifications
| Brand | Boostline |
| Part Number | B07Q SB5137-905S |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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