Bosch - XR4CS Spark Plugs, S14 & S38

Purchase Bosch - XR4CS Spark Plugs, S14 & S38

Priced each (1)

VAC Recommends that you replace these high performance S14 & S38 spark plugs every 8-15k miles for best performance.

Bosch plugs for highly tuned S14 and S38 (E28 M5, E24 M6) engines. One heat range colder to help resist detonation in high performance built engines, recommended for hard tuned high compresion engines.

VAC Tech Tip:
We recomend these plugs for regularly tracked s14 with high compresion. Popular for those with 290+ HP S14 and 380+ HP S38.
Ideal match for those who race or have forced induction.

Purchase Bosch - XR4CS Spark Plugs, S14 & S38

• SKU: BOS-XR4CS
• Engine Type: S14, S38

Other products in the category E30 M3 Catalog / Cylinder Head:

• BMW - OEM S14 Cylinder Head Gasket (2.3L & 2.5L)

• BMW - S14 OEM Head Bolt Set

• BMW - S14 Valve Cover Gasket Set

• Bosch - XR4CS Spark Plugs, S14 & S38

• OEM - S14 Cylinder Head Gasket Set - 2.0, 2.3 & 2.5L (E30 M3)

• Schrick - S14 Camshafts

• VAC - 7mm Lash Caps (sold individually)

• VAC - S14 & S38 High Performance Valve Guide

• VAC - S14 Complete Engine Timing Tensioner and Guide Replacement Set

• VAC - S14 Cylinder Head Gasket Set with MLS - 2.3 & 2.5L

• VAC - S14 High Performance Valve Spring & Retainer Kit

• VAC - S14 Modified Cam Box

• VAC - S14 Reconditioned Cylinder Head

• VAC - S14 Shim Under Bucket kit, E30 M3

• VAC - S14 Stage 1 Performance Cylinder Head

• VAC - S14 Stage 2 Performance Cylinder Head

• VAC - S14 Stage 3 Performance Cylinder Head

• VAC - S14, Multi Layered Steel Head Gaskets (MLS)

• VAC - Turbo Camshaft Set, S14

• VAC - Valve Adjustment Shims, S14 & S38