CITROEN / DS - Reinforced engine parts

NSB Concept specialises in Citroën and DS engines, supplying high-performance forged pistons, H-beam and I-beam connecting rods, CATCAMS sport camshafts, forged valves and high-performance springs,…NSB Concept specialises in Citroën and DS engines, supplying high-performance forged pistons, H-beam and I-beam connecting rods, CATCAMS sport camshafts, forged valves and high-performance springs, reinforced multi-layer head gaskets, ARP competition fasteners, tri-metal connecting rod and main bearings, as well as balanced lightweight crankshafts. The expertise of the world's leading manufacturers guarantees absolute reliability to transform your Citroën/DS, from the legendary Saxo VTS to the recent DS3 Performance, via the iconic AX Sport and C2 VTS. Find in under 3 clicks the parts that fit your engine block across the entire Citroën/DS catalogue: the indestructible TU units (TU3J2, TU5J2, TU5JP4), the rugged naturally aspirated and turbo XU engines (XU9JA, XU10J4RS), the newer EP6 THP with or without Valvetronic, and even the rare ES9J4S V6. Whether you're building for the historic Monte Carlo Rally, regional hillclimbs, or simply want a reliable 200bhp, a stage 2 250bhp, or a radical build beyond 300bhp, our range precisely meets both road and competition needs. Thanks to our two logistics hubs in France and Central Europe guaranteeing the best European prices and permanent stock, you benefit from 15 years of recognised expertise on PSA engines. Orders processed before 5pm are dispatched immediately, with delivery across Europe guaranteed within 72 hours. Citroën and DS are registered trademarks. NSB Concept is an independent reseller. Use our configurator or contact our Citroën/DS specialists. FAQ Q: Which Citroën/DS builds are most requested at NSB Concept? A: The TU5JP4 (Saxo VTS, 106 S16), EP6 THP (DS3 Performance, 208 GTI) and XU10J4RS (306 S16, Xsara VTS) engines dominate with 70% of requests. Our kits make it easy to reach 180bhp on the TU5JP4, 270bhp on the EP6 and 220bhp on the XU10J4RS, all reliably. Q: Are CATCAMS camshafts compatible with my standard Citroën? A: Our road camshafts keep a stable idle and pass the MOT test. For the TU and XU units, the 264° or 272° profiles suit mixed road/track use perfectly. The EP6 requires suitable remapping to make full use of the CATCAMS camshafts. Q: Can I fit NSB Concept parts on my classic Citroën? A: Of course, we offer specific solutions for the AX Sport, Visa Chrono and BX 16S. Our components respect the original dimensions while bringing the modern reliability essential for historic rallies and demonstration events.

1.2L 8v - XZ7R

1.3L 8v - TU24

1.3L 8v - TU2J2

1.4L 8v - TU3J2 TU3JP

1.6L 8v - TU5J2 TU5JP

1.6L 8v - XU5JA

1.6L 16v - EP6D THP Gen1 2006-2010 (without valvetronic)

1.6L 16v - EP6C/F THP Gen2 2010-2025 (with Valvetronic)

1.6L 16v - TU5J4 TU5JP4

1.6L 16v - TU5JP4S

1.9L 8v - XU9JA

1.9L 16v - XU9J4