Driveshaft Shop Level 0 Axles for 06-11 Civic Si

Driveshaft Shop Level 0 Axle Set - 2006-2011 Honda Civic Si (FG2 & FA5)

The 8th gen Si is old enough now that original axles are giving up, and the usual replacement options aren't great. Cheap rebuilds put new boots on a worn core, and generic aftermarket axles are a gamble. This is Driveshaft Shop's Level 0, built as a proper alternative to both, with a chromoly center bar, billet inner CV, and an outer CV design genuinely better than what Honda used. Sold as a left and right pair.

Better Than A Rebuild

Worth being clear about, because rebuilt axles are what most people reach for and they're the wrong call on a car you're keeping.

A rebuild is a used core with new boots and grease. Whatever wear existed inside is still there. You're buying a part that already failed once and hoping the second run goes better, on a car that's now fifteen to twenty years old and has probably been driven the way an Si invites you to drive it.

This is new throughout. Chromoly center bar, real billet inner CV with an oversized tripod, and a redesigned outer. Those aren't things you find on a rebuild or a budget aftermarket axle, and they're why this outlasts what it's replacing rather than repeating the same failure.

The Outer CV Is Genuinely Better Than Factory

This is the standout engineering detail, and on the Si it addresses a known problem.

Honda's factory outer CV uses a dual arc design that has a tendency to wear out prematurely. Driveshaft Shop's outer is custom made with a single arc design instead, which addresses that wear pattern directly. Combined with a new heat treat on the 1117 billet outer, it's a meaningful improvement over the part you're removing.

If your Si has developed a click on turns, that's the outer CV telling you it's done. Replacing it with the same design that wore out is how you end up doing this again.

Be Clear On What This Is

Driveshaft Shop is unusually direct about positioning, and we'd rather repeat it than let you find out later.

This is not a racing axle. It's a superior stock replacement, better than any rebuild or budget aftermarket option, but it isn't built for competition-level power.

There's no horsepower rating and no warranty against breakage. That's Driveshaft Shop's own position on the Level 0 line.

For a stock or lightly modified Si, that's exactly right and there's no reason to spend more. If you're boosted and making real power, look at their higher tiers instead.

Direct Replacement

Nothing to match, nothing to confirm. These fit the 8th gen Si without mount requirements, intermediate shaft questions, or swap geometry to work around. Pull the old ones, put these in.

Need More Than This?

If your Si is boosted or making power well beyond stock, the Level 0 isn't the tier you want. Driveshaft Shop's higher rated axle lines are built for that, with stated horsepower ratings and warranty coverage. Worth a look if the lack of a rating here gives you pause.

Fitment

2006-2011 Honda Civic Si Coupe (FG2)
2006-2011 Honda Civic Si Sedan (FA5)

Part number 510234 / 510235. Includes left and right axles.

Who Should Run These

This is for the 8th gen Si owner whose axles have started clicking, and who'd rather put in something better than what failed instead of the same thing again. Stock or lightly modified car, daily driven, and worth doing properly. Fit them and get back to enjoying the car.

Fits: 2006-2011 Honda Civic Si, coupe (FG2) and sedan (FA5). Part number: 510234 / 510235. Includes: left and right axles. Construction: chromoly center bar, billet inner CV with oversized tripod, single arc 1117 billet outer CV. Note: not a racing axle. No horsepower rating and no warranty against breakage. Also available: higher rated Driveshaft Shop axles.