Energy Suspension Master Bushing Kit for 99-00 Civic Si

Energy Suspension Master Bushing Kit - 1999-2000 Honda Civic Si (EM1)

This is the do-it-all bushing kit for your EM1 Si. Instead of replacing one worn bushing at a time, the Energy Suspension master set hits nearly every suspension and chassis bushing on your 99-00 Civic Si at once, all in Hyper-Flex polyurethane. On an EM1 that's now 25-plus years old and still riding on its original rubber, this is how you take a car that's gone loose, vague, and rattly and bring it back to feeling tight and dialed-in again. And it matters even more if you've got a built B16 or you actually drive yours hard, because worn-out factory bushings just can't hold up to what you're throwing at them.

What Worn-Out Bushings Are Doing To Your Si

Here's why an old EM1 starts feeling tired. That soft factory rubber has spent decades cracking, sagging, and squishing down, and once it does, your suspension starts moving around in ways it really shouldn't. That's what you're feeling when the car wanders down the highway, clunks over bumps, and goes vague mid-corner as everything shifts under load. Energy's Hyper-Flex polyurethane swaps all that worn rubber out and locks your geometry back where it belongs, so your steering sharpens up, the car tracks straight under braking, the wheel hop you fight on hard launches backs off, and it actually holds an alignment instead of drifting out of spec like tired rubber does.

Why Energy's Poly Outlasts The Rubber By A Mile

Here's what Energy's Hyper-Flex does that the factory rubber never could. It shrugs off the oil, coolant, UV, and road grime that rot rubber from the inside out, and Energy rates it to outlast rubber by something like five to one. So you're not just making the car feel better right now, you're doing it with a material that stays put for the long haul. It's made in America, and it's backed by Energy's warranty, so this is genuinely a do-it-once job, not something you'll be back under the car redoing in a few years.

The Honest Tradeoff: Firmer, Not Softer

Let's be straight with you before you buy, because poly isn't a free lunch. It's firmer than rubber, so a full master kit makes your Si noticeably tighter and a little buzzier than stock, you'll feel more of the road and hear a bit more through the chassis. On a built EM1 or a weekend car you love to drive, that's the whole point, it's the price of a chassis that finally feels connected. But if yours is a comfort-first daily, just know that going in. And here's the one install tip that matters most: grease every bushing with the included Formula 5 thoroughly when you put it in, because that's what keeps poly quiet. Skip it and you'll get the squeak these are known for.

Plan For A Real Job

Set your expectations on the work, because this isn't a bolt-on afternoon. Every bushing's got to be pressed out and the new poly pressed in, and you're touching control arms, shocks, the rack, and more all around the car. On a car this age, that old rubber's usually seized right into the shells, so expect to fight a few of them out with a press, and budget a solid weekend or a chunk of shop time. It's a job, no way around it, but knocking it all out at once beats chasing one worn bushing at a time and pulling the same parts apart over and over.

Red Or Black, Your Call

Red and black are the same Hyper-Flex poly at the same hardness, so it's purely a color thing, no performance difference between them. The black is graphite-impregnated to be a touch more self-lubricating, while the red is just the look. Pick whichever you like.

Specs

• Type: complete polyurethane master bushing set
• Material: Energy Suspension Hyper-Flex polyurethane
• Includes: Formula 5 grease
• Color: red or black
• Made in the USA
• Resists oil, coolant, UV, and grime; rated to outlast rubber roughly 5 to 1
• Warranty: per manufacturer

Fits These Cars

• 1999-2000 Honda Civic Si (EM1, B16A2)

Note: Energy Suspension Hyper-Flex polyurethane master bushing kit for the 1999-2000 Honda Civic Si (EM1). Replaces nearly every worn factory rubber suspension and chassis bushing on the car at once with polyurethane, for sharper steering, straighter tracking under braking, reduced wheel hop, and better alignment retention, while resisting the oil, coolant, UV, and grime that rot rubber. Includes Formula 5 grease, available in red or black (same hardness; black is graphite-impregnated to be slightly more self-lubricating, red is a color choice), and made in the USA. Polyurethane rides firmer and a bit buzzier than stock, so it suits a built or hard-driven Si more than a plush daily; grease every bushing thoroughly on install to prevent squeaks. This is a press-in/press-out job covering the control arms, shocks, rack, and more, so plan for a full weekend or shop time. One master bushing kit per order.