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2003 Honda Civic Performance Parts

Looking for aftermarket parts to modify or upgrade your 2003 Honda Civic? At Tunersports.com we carry a huge selection of the top name brand performance parts and accessories for your Civic.

Whether you have a 2003 Honda Civic in DX to Si trim we have you covered. From air filters to wheel and tire accessories we have 1,157 available parts to mod your Civic, all with free shipping to the Continental US 48 States.

2003 Civic Parts:

Recently Added Honda Civic Aftermarket Parts:

IN STOCK - LOW Cometic Gasket Head Gaskets C14043-060 Cometic Honda K20A2/K20A3/K20Z1/K24A1 .060in. MLS Cylinder Head Gasket - 90mm Bore $125.74 Details
IN STOCK - LOW Whiteline Sway Bars - Kits BHR67XZ Whiteline 02-06 Acura RSX 01-05 Honda Civic Rear Sway Bar 26mm 3 Point Adjustable $207.01 SALE Details
IN STOCK - LOW Diode Dynamics Replacement Bulbs DD0110P Diode Dynamics 7443 LED Bulb HP24 LED - Cool - White Switchback (Pair) $83.60 SALE VIEW PRICE IN CART Details
IN STOCK Diode Dynamics Replacement Bulbs DD0071S Diode Dynamics 31mm SMF2 LED Bulb - Cool - White (Single) $26.40 SALE VIEW PRICE IN CART Details
IN STOCK - LOW Whiteline Bushings - Control Arm KCA547 Whiteline 02-06 Acura RSX / 00-10 Honda Civic Front Lower Control Arm Inner Bushing Kit $88.45 SALE Details
IN STOCK - LOW XCLUTCH Clutch - Stage 2 Sprung Ceramic XKHN22022-1B XClutch 02-06 Acura RSX Base 2.0L Stage 2 Sprung Ceramic Clutch Kit $403.21 SALE VIEW PRICE IN CART Details
IN STOCK - LOW XCLUTCH Clutch - 7.25in Twin Sprung Ceramic XKHN18523-2B XClutch 02-06 Acura RSX Base 2.0L 7.25in Twin Sprung Ceramic Clutch Kit $2,012.67 SALE VIEW PRICE IN CART Details
IN STOCK - LOW Diode Dynamics Replacement Bulbs DD0299S Diode Dynamics 31mm HP6 LED Bulb LED - Cool - White (Single) $30.80 SALE VIEW PRICE IN CART Details
IN STOCK - LOW Mishimoto Wheel Spacers MMWS-011-300BK Mishimoto Wheel Spacers - 4x100 - 56.1 - 30 - M12 - Black $132.95 SALE VIEW PRICE IN CART Details
IN STOCK - LOW Mishimoto Wheel Spacers MMWS-011-350BK Mishimoto Wheel Spacers - 4x100 - 56.1 - 35 - M12 - Black $138.95 SALE VIEW PRICE IN CART Details

Popular Honda Civic Aftermarket Parts:

IN STOCK Whiteline Sway Bar Links KLC139 Whiteline 02-08 Subaru WRX / 04-08 WRX STi Front Sway Bar Link Kit $108.39 SALE Details
IN STOCK ACL Race Series Main Bearings 5M1959H-STD ACL Acura B17A1/B18A1/B18B1 / B18C1/B18C5 VTEC / Honda K20A3/K20A2/K24A Standard Size High Performa $76.56 Details
IN STOCK Skunk2 Racing Valve Cover Hardware 649-05-0125 Skunk2 Honda/Acura K-Series (All Models) Black Anodized Low-Profile Valve Cover Hardware $78.02 SALE VIEW PRICE IN CART Details
IN STOCK ARP Head Stud Kits 208-4701 ARP Honda/Acura K20A (A2 & A3) Head Stud Kit $169.58 Details
IN STOCK Competition Clutch Steel Flywheels 2-800-ST Competition Clutch 02-08 RSX / 02-09 Civic SI 11.5lb Steel Flywheel $259.25 SALE Details
IN STOCK Skunk2 Racing Shift Knobs 627-99-0081 Skunk2 Honda/Acura 6-Speed Billet Shift Knob (10mm x 1.5mm) (Apprx. 440 Grams) $76.24 SALE VIEW PRICE IN CART Details
IN STOCK King Engine Bearings Performance Main Bearings MB5259XPC King Honda A-Series/B-Series/K-Series (Size STD) pMaxKote Performance Main Bearing Set $80.95 Details
IN STOCK Competition Clutch Stage 2 Clutch Kits 8037-2100 Competition Clutch 2002-2008 Acura RSX Stage 2 - Steelback Brass Plus Clutch Kit $311.53 SALE Details
IN STOCK Cometic Gasket Head Gaskets C4311-030 Cometic Honda K20/K24 87mm Head Gasket .030 inch MLS Head Gasket $102.89 Details
IN STOCK Exedy Flywheels HF02 Exedy 2002-2006 Acura RSX Type-S L4 Lightweight Flywheel $456.86 SALE Details