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Car Mods Catalog — Reviews, Fitment, Where to Buy

The SPOOLED mods catalog: every aftermarket part with verified installs, real owner reviews, fitment data, and direct links to buy.

Last updated 2026-04-30·Open Mods

The SPOOLED mods catalog is the single index of every aftermarket part we track — turbo kits, exhaust systems, suspension components, wheels, tunes, intercoolers, and every other category an enthusiast might shop for. Every entry carries the same set of evidence: how many real owners have it installed, what they paid, what they think of it, and which other mods they paired it with.

That last part matters. A turbo kit reviewed in isolation is one data point. A turbo kit installed on 47 cars, alongside a list of the supporting fueling, cooling, and tuning each owner did, is a complete picture. SPOOLED is built around showing you that complete picture instead of a star rating in a vacuum.

What you can find on /mods

  • Verified installs — every mod page lists the real builds it's installed on. Click through to see the rest of those builds' mod lists, dyno numbers, and photos.
  • Owner reviews — written by people whose install is verified, not anonymous shoppers.
  • Fitment data — which year/make/model combinations the part is confirmed to fit.
  • Paired mods — what other parts owners typically run alongside this one. Saves you from buying a turbo and discovering you needed three more parts to actually run it.
  • How-to guides — links to step-by-step install how-tos from owners who've done it.
  • Authoritative buy links — direct to the manufacturer or an authorized retailer, not a third-party marketplace listing of unknown provenance.
  • Part-out listings — used examples for sale on the part-out marketplace so you don't pay new-price for a take-off.

Filters that actually work

The catalog supports filtering by category, brand, fitment (year / make / model), star rating, install count, and price range. Two filters in particular are worth calling out:

Category × fitment. Pick a category like turbo, then filter to your exact car. You get every turbo we track that's confirmed to fit a 2018 Civic Si, ranked by install count. This is the closest thing to "best mods for my car" without sponsored placements pretending to be recommendations.
Universal vs vehicle-specific. Some parts (oil catch cans, certain intercoolers, spark plugs) are flagged universal. Toggle the filter to include or exclude them depending on whether you're shopping the whole catalog or only platform-specific kit.

The full taxonomy — 13 categories — is: turbo, exhaust, suspension, wheels, engine, drivetrain, brakes, interior, exterior, ecu, fueling, cooling, other. New categories get added as the catalog grows; if a part doesn't fit any of these it lands in other.

Trending right now

Pulled live from the catalog — most-installed parts across the platform. Buy links here are platform-tagged retailer links; clicks support SPOOLED with no cost to you.

BC Racing · suspension
BR Coilovers
2 installs
Killer B · exhaust
Killer B Holy Header
2 installs
Belanger · exhaust
Exhaust
2 installs · ★ 4.6 (1)
SYMS · exterior
Rear wing
1 installs
Invidia · exhaust
Q300 Cat-Back
1 installs · ★ 4.8 (1)
OEM · exterior
V-limited front lip
1 installs · ★ 4.8 (1)

How owner reviews work

A review on SPOOLED requires a verified install. That means the reviewer has a build page on the platform, the build page lists this mod with an install date, and we've cross-checked the photos when applicable. We don't accept reviews from drive-by accounts.

The result: ratings are slower to accumulate than on a typical retailer, but they're harder to game and far more useful when you're about to spend $3,000 on a turbo kit. Mark a review as helpful and the author earns PSI; PSI is the platform's contribution score and what drives the leaderboards.

From "best mods for my car" to a working list

The most common way to use the catalog: open /mods, filter to your car, sort by install count, and read down the list. For each mod you're considering, click into the page and check:

  1. Star rating and review count — a 4.9 with 3 reviews is not the same data point as a 4.6 with 87.
  2. The paired mods tab — these are the supporting parts you'll likely also need.
  3. Linked how-to guides — install difficulty and time, in the words of someone who actually did it.
  4. The installs tab — open one or two builds with similar goals to yours and see what their full mod list and dyno results look like.

That four-step pass beats a generic "best mods for [car]" search every time, because every signal you're reading is tied to a real car you can click through to. Combine the catalog with the shop directory and the tuner directory and you have an end-to-end answer to what to buy, who to install it, and who to tune it.

Frequently asked

How does SPOOLED decide which mods to list?
Every mod with at least one verified install on the platform appears in the catalog. There's no editorial gatekeeping — if a real owner installed it and logged it on their build, it has a page. We add metadata (brand, category, fitment, official product URL) as installs accumulate.
Are the buy links sponsored?
The buy links on mod pages and in our guides are platform-affiliate links — clicks support SPOOLED at no cost to you. We don't take payment to rank one mod above another, and ranking is driven by install count and rating, not commercial relationships. When a creator on the platform attaches their own affiliate link to a build or how-to, that link is theirs and the commission is split with them; the editorial guide links are platform-only.
Can I trust reviews if owners have an incentive to inflate ratings?
Reviews require a verified install — the reviewer's build page must list the mod with an install date. PSI rewards helpful reviews, not high-rated ones, so there's no incentive to inflate. Reviews under 30 characters and reviews that look templated get filtered out by the PSI engine before they accumulate score.
What if a mod I want to install isn't in the catalog?
Add it to your build page yourself. The catalog grows from owner-logged installs. Once your install is logged, the mod gets a page; if there's already a page (we de-dupe by part number where possible), your install attaches to the existing one.
How is "best mod for my car" decided?
There is no algorithmic "best." For your specific car, the catalog ranks parts by install count among owners of that platform, with rating as a tiebreaker. That tells you what owners of cars like yours are actually running and rating well — which is materially different from a sponsored top-10 list.
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