Comparison Outcome?
If you look at the 350PHI kit, it outshines the rest from multiple points of view. The rear brakes can be upgraded to higher CoF (Coefficient of Friction) pads to mostly balance the brake bias back to stock. And if you manage to pull rotors and calipers from a junkyard for $75 each side, then you've got a killer setup for cheap! They're supposed to fit behind stock 17' wheels and some aftermarket 17', but they provide a paper cutout to "mock up" the fitment inside your rim before you purchase the brackets.
If price is no object, obviouosly the KSport would be the easy bolt-on solution for killer brakes, but you definitely need to upgrade the rim size.
| Kit/Upgrade | Rotor Diameter | Caliper Piston Dia. | Piston Count | Style | Pad Radial Height | OEM Pads CoF | Higher CoF Options | Bundled w/ Front? | Rim needed | Total Cost | Where to Buy |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Ksport Supercomp BBK Rear | 356mm (kit-specific slotted) | Aluminum (multi-size) | 4 | Fixed (Monoblock) | ~50mm | 0.46-0.53 (ceramic) | 0.5-0.6 (race) | Yes (matches front Ksport) | 18" | $2,386 | ksportusa.com |
| XAT w/ LS430 Calipers | 322mm (OEM Lexus LS430) | 43mm/38mm | 2 | Fixed (Monoblock) | ~48mm | 0.4 (OEM-style) | 0.5/0.55 (Hawk) | No (pairs w/ XAT front LS460) | 17" | $995 | xatracing.com |
| OEM IS300 | 307mm (OEM Lexus) | 40mm | 2 | Fixed (Monoblock) | ~45mm | 0.35-0.45 | Multiple | N/A | N/A | N/A | N/A |
Rear brakes are harder to pick a "great" kit, just please please be mindful of your bias while upgrading rear brakes, don't install brakes that drastically change the bias (even if they look amazing). Use my calculator on the other page, and plan out your brake upgrade.
| Pad Brand/Model | Position (Front/Rear) | CoF Rating | Material Type | Key Benefits | Total Cost (Pad Set) | Where to Buy |
|---|---|---|---|---|---|---|
| Hawk HPS | Front/Rear | 0.49-0.52 | Ceramic-enhanced | Low dust, street/track; better cold bite than OEM. | $154 | hawkperformance.com or amazon.com |
| Hawk HP+ | Front/Rear | 0.525-0.56 | Semi-metallic | High heat fade resistance; track-focused. | $183 | hawkperformance.com or autozone.com |
| EBC Redstuff | Front/Rear | 0.5 | Ceramic | Quiet, low dust; good for daily driving. | $152 | ebcpbrakes.com or rockauto.com |
| EBC Yellowstuff | Front/Rear | 0.55 | Aramid fiber | High friction for spirited driving; more dust. | $140 | ebcpbrakes.com or summitracing.com |
| StopTech Street | Front/Rear | 0.4-0.5 | Semi-metallic | Balanced street performance; NVH reduction. | $117 | stoptech.com or tirerack.com |
| PowerStop Z23 | Front/Rear | 0.45-0.52 | Carbon-fiber ceramic | Evolution coating for rust resistance; low noise. | $70 | powerstop.com or amazon.com |
It's important to keep in mind the purpose of your car when upgrading brakes. Some pads are noisy, others are dusty. If you have a show-car, you don't want to be cleaning brake dust off every week, and if it's just a street car and you want better brakes you don't want them to be loud. Factor that in. None of these brake pads are "better" than the others, each have pros and cons.
| Vehicle Model | Front Bolt-On? | Rear Bolt-On? | Recommended Rim Diameter | Total Cost | Notes |
|---|---|---|---|---|---|
| Toyota Chaser JZX100 (1996-2001) | Yes | Yes | N/A | N/A | Direct swap; same JZ platform/suspension. |
| Toyota Mark II JZS155 (1996-2004) | Yes | Yes | N/A | N/A | Bolt-on; shared Toyota sedan chassis. |
| Toyota Cresta JZX100 (1996-2001) | Yes | Yes | N/A | N/A | Identical to Chaser; OEM interchange. |
| Toyota Altezza RS200 (1998-2005) | Yes | Yes | N/A | N/A | Same as IS200; direct OEM fit. |
Removable intake manifold assembly (intact)
The intake manifold I bought used off of a Supra locally on Craigslist, it had seen approximately 20 years of use. After a sandblasting and a powder coat it looked new again. The Radium parts (fuel rail, injector pulse damper, fuel pressure regulator and pressure gauge) add a touch of elegance. The Boash 82mm throttle body on the front of the Greddy intake manifold curves around the OEM IS300 power steering reservoir perfectly!
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