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The Parts Database · Member Resource

8,200+ AP1 & AP2 part numbers, cross-referenced by 41,000 owners across 62 countries.

S2000Rally's parts database is the largest crowd-sourced S2000 compatibility reference on the web — OEM and aftermarket SKUs from AP1 Parts Co., K-Tuned, Comptech, and 28 more, each tagged with verified fitment notes from real installs. Full SKU filtering and the build-sheet save tool are member-gated.

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  • 8,200+SKUs cross-referenced
  • 31Aftermarket partners
  • 62Countries contributing
White AP2 Honda S2000 cornering hard on a canyon road at golden hour

What the database actually does

More than a SKU list — a working tuning notebook backed by real installation evidence.

  1. 01

    Chassis-aware filtering

    Every entry is tagged AP1 (2000–2003) or AP2 (2004–2009) and surfaced only against the chassis you've selected — no more scrolling past JDM-only coilovers to find the USDM equivalent.

  2. 02

    Verified fitment notes

    Each SKU carries install notes from members who actually bolted it on — clearance issues, required bushings, ECU recalibration flags, and known conflicts with OEM parts.

  3. 03

    Cross-brand compatibility

    One entry, every equivalent. We cross-reference the same part across AP1 Parts Co., K-Tuned, Comptech, and 28 other partners so you can spec by function, not by brand loyalty.

  4. 04

    Member-contributed dyno snippets

    When a member logs a before/after pull, the result attaches to the relevant SKUs — labeled with the correction factor (JDM vs USDM, STD vs corrected) so the numbers mean something.

How a part number earns its way in

The editorial rigor behind every record.

A SKU doesn't appear in the database because a vendor said so. Each entry is submitted by a verified S2000 owner, then reviewed by one of our four contracted technical reviewers — most of them professional fabricators or licensed smog technicians — before it goes live. The reviewer checks the fitment claim against the documented install, confirms the part number against the manufacturer's current catalog, and rejects anything that reads as a paid placement or an unverified vendor claim.

Dyno numbers are only attached to a record when the contributor has labeled the correction factor (JDM vs USDM, corrected vs STD) and named the dyno facility or load type. If those labels are missing, the chart stays in the queue. This is the same standard we apply to our long-form build logs and our forum's technical threads — and it's why the database has held up as a working reference since 2007.

Members can flag any entry for re-review. Flags land on the editorial queue within 24 hours and either pull the record for re-verification or attach a public correction note explaining the dispute. We do not silently edit history.

Editorial Standards 11-person volunteer editorial team · 4 contracted technical reviewers
Founded 2007, by 14 owners in the Bay Area · First S2000-only track day, Thunderhill Raceway, 2009

A slice of the working database

What one filtered view actually looks like.

Six real entries from the public preview — suspension and intake categories, AP2 chassis, sorted by recent activity. Full filtering, saved build sheets, and contribution tools unlock when you join.

SKU Part Chassis Brand Fitment Verified
KT-CB-S2K Chase Bays brake line kit AP1 · AP2 K-Tuned Direct fit, no adapter 14 installs
AP1P-CB-001 Coolant reroute plate AP2 AP1 Parts Co. Requires OEM gasket swap 31 installs
CPT-IC-AP2 Intercooler, bar-and-plate AP2 Comptech ECU recalibration flagged 22 installs
KT-CAM-9K Camshaft set, 9K profile AP1 · AP2 K-Tuned Valve spring upgrade required 9 installs · 2 flags
HND-17120-PLC OEM plug-top coil set AP1 Honda OEM Direct fit, 2000–2003 only 47 installs
AP1P-INT-F20C Carbon intake, F20C AP1 AP1 Parts Co. Requires MAF re-flash 18 installs

By the numbers

Eighteen years of peer-built evidence.

8,200+ OEM & aftermarket SKUs cross-referenced
41,300+ Verified S2000 owner members
31 Partner brands — AP1 Parts Co., K-Tuned, Comptech & more
18 Years of continuous editorial review, since 2007

1,140+ technical build logs published · 612,000+ forum threads · 4.8M posts archived · 38.2% newsletter open rate, Q3 2024 (Mailchimp verified)

Member-gated

The headline 8,200+ SKUs are member-gated. Joining unlocks the working tools.

A free account gives you full SKU filtering across chassis, category, and brand; the saved-build-sheet tool that follows your car through every revision; and the contributor form so your own install notes become part of the public record. No paywall on reading the public preview. No spam, ever — our newsletter open rate is 38.2% because people actually want to read it.

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