Spool B58 4.5" Stainless Steel Race Downpipe

Spool B58 Downpipe 4.5” Race Downpipe Do not buy downpipes with 100 welds, more prone to cracking as for why we designed it this way, many other companies have a weld right before the turbo flange, as that area is prone to a lot of stress, many other companies weld with zero penetration and its a common failure point on their downpipes. Product Highlights: 304 Grade Stainless Steel Construction: Crafted for durability and resistance to corrosion. Optimized Flow Design: Features smooth transitions to maximize exhaust flow efficiency. Enhanced Flex Section for Easy Installation: We've addressed the challenges of installing downpipes with a rigid flex section. Our newly, highly flexible design makes alignment with your exhaust significantly easier, ensuring a hassle-free installation process for all you DIYers!

Fits: BMW B58 (Gen 1 and Gen 2) and Toyota GR Supra 3.0. Confirm your engine with us before ordering.

Brand: Spool Performance

For off-road / competition use only. Not legal for use on public roads in the United States, including California.

• Ships from the brand or distributor, usually in 3–7 business days.
• Free US shipping on orders over $250.
• Unused parts can be returned within 30 days. Some items are marked no-refund in their description.

Full details are on our shipping and returns page.