Maximize B58 Performance with Flashark Catless A90 Supra Downpipe
Unleash the Beast: Maximum Flow for Your B58 Supra A90. Don’t let the restrictive factory catalytic converter choke your Supra's performance. The Flashark® Catless Downpipe is engineered specifically for the 2020-2024 Toyota Supra A90 (B58) to eliminate backpressure, slash turbo lag, and deliver the aggressive, throaty exhaust note this legendary platform was born for.
Key Benefits
🚀 Massive Power Gains: Unlock up to +15-25 WHP and +20 WTQ when paired with a Stage 2 tune. Experience a noticeable pull across the entire RPM range.
🔥 Aggressive Sound & Pops: Transform your exhaust note. Get distinct turbo whistles, louder "pops and bangs," and a deep racing growl that turns heads.
⚡ Faster Turbo Spool: By removing the OEM bottleneck, your turbo reaches peak boost significantly faster, providing instant throttle response.
💎 Precision Engineering: Crafted from heavy-duty T304 Stainless Steel with 4.5" to 3.5" tapered mandrel-bent piping for smooth, turbulence-free gas velocity.
Technical Specifications
Feature Specification
Material Premium T304 Stainless Steel
Design "4.5"" Inlet to 3.5"" Outlet (Direct Fit)"
Welding Robotic TIG Welded (Clean & Durable)
Finish Brushed/Finished Metal
O2 Sensor Bungs Factory Placements (Plug & Play)
Engine Compatibility BMW B58 3.0L Inline-6 Turbo
Important Performance Notes
CEL Notice: As this is a Catless racing part, a Check Engine Light (CEL) is expected. We highly recommend a Stage 2 ECU Tune (such as Bootmod3 or MHD) to disable the light and fully optimize performance.
Track Ready: Designed for off-road, racing, and competition use. Not street-legal in regions requiring emissions compliance (CARB/EPA).
What’s in the Box?
Include only 1x Flashark High-Flow Catless Downpipe
Fitment
2020-2024 Toyota Supra A90
Compatible with: Stock exhaust system or any aftermarket cat-back system.
Fits both LHD (US) and RHD models.
Frequently Asked Questions: A90 Supra B58 Downpipe
Q1: Will this catless a90 supra downpipe fit the 2.0L model?
A1: No, this specific Flashark downpipe is engineered exclusively for the 2020-2024 Toyota Supra A90 with the 3.0L B58 engine. It will not fit the 2.0L (B48) models. Please verify your engine type before purchasing to ensure perfect fitment.
Q2: How much horsepower can I gain with this supra downpipe?
A2: By eliminating the restrictive factory catalytic converter, you can expect massive exhaust flow improvements. When paired with a Stage 2 ECU tune, this a90 supra downpipe unlocks an estimated +15 to +25 WHP and +20 WTQ, providing a noticeably harder pull across the RPM band.
Q3: Will installing this catless downpipe trigger a Check Engine Light (CEL)?
A3: Yes. Because this is a high-flow catless racing part, the factory O2 sensors will detect the increased flow and trigger a CEL. We highly recommend a Stage 2 tune (such as Bootmod3 or MHD) to clear the code and optimize your B58 engine for maximum performance.
Q4: Does this a90 supra downpipe drastically change the exhaust sound?
A4: Absolutely. This is one of the most exciting upgrades for your B58. The Flashark catless downpipe delivers a significantly more aggressive, throaty exhaust note, louder "pops and bangs," and a distinct turbo whistle that the stock catted downpipe heavily muffles.
Q5: Is this a direct bolt-on installation, or is welding required?
A5: It is a 100% direct fit bolt-on upgrade. Our supra downpipe features a 4.5" inlet to a 3.5" outlet tapered design that perfectly matches the OEM turbo and exhaust flanges. No cutting or welding is required, and it utilizes factory O2 sensor bung placements for a plug-and-play install.
Q6: Can I use this downpipe with the stock Supra exhaust system?
A6: Yes! This a90 supra downpipe is fully compatible with your factory stock cat-back exhaust system. It also pairs perfectly with most aftermarket cat-back exhaust systems designed for the A90 platform if you decide to upgrade further down the line.
Q7: Why does Flashark use T304 Stainless Steel for this downpipe?
A7: T304 premium stainless steel offers superior resistance to rust, corrosion, and the extreme heat generated by the B58 turbocharger. Combined with our robotic TIG welding, it ensures this supra downpipe will endure harsh track conditions and resist cracking over time.
Q8: Will this downpipe pass emissions or smog testing?
A8: No. This catless downpipe is designed strictly for off-road, track, and competition use. Because it removes the factory catalytic converter, it is not street-legal in regions that require strict emissions compliance (such as CARB or EPA standards).
Q9: Does this downpipe fit Right-Hand Drive (RHD) A90 Supra models?
A9: Yes, our precision mandrel-bent design ensures perfect chassis clearance. This a90 supra downpipe fits both Left-Hand Drive (LHD - US market) and Right-Hand Drive (RHD - UK/Australia/Japan markets) 2020-2024 3.0L models without steering column interference.
Q10: Do I need a tune immediately after installing this downpipe?
A10: While you can physically drive the car without a tune (a CEL will appear), we strongly advise against running a catless downpipe without a proper Stage 2 tune for an extended period. Tuning ensures safe air/fuel ratios, prevents potential limp mode, and actually unlocks the power you paid for.