01-05 Lexus IS300 HDS-IS300 Style Exhaust Header Gasket
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*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
01-05 Lexus IS300 HDS-IS300 Style Exhaust Header Gasket
Direct-fit header gasket engineered for the IS300 exhaust manifold. This gasket seals the critical joint between your header and cylinder head, preventing exhaust leaks that rob power and create noise. Hard panel construction designed to handle sustained heat cycles without degradation.
Key Features
- OEM-spec fitment - Seats flush at factory mounting points, no shimming or modification needed
- Heat-resistant construction - Withstands repeated thermal cycles without warping or leaking
- Single gasket per order - Covers the complete header-to-head seal interface
Specs
- Hard panel construction
- Single gasket assembly
- Factory fitment orientation
Whats Included
- Header gasket
Frequently Asked Questions
Will this gasket work with an aftermarket header?
This gasket is cut for OEM header dimensions. If you're running an aftermarket header with different flange thickness or bore spacing, test-fit before installation—you may need to source a matched gasket for that specific manifold.
Do I need new hardware to install this?
The gasket itself is the seal—you'll reuse your factory header bolts and studs. Check condition of those fasteners before assembly; if they're stripped or corroded, new bolts are worth the small cost to ensure a tight clamp load.
What prep is needed before I install?
Clean both the header flange and cylinder head mating surface with a wire brush to remove old gasket material and carbon buildup. A clean, flat surface is critical for proper sealing—take time here and you won't fight leaks later.
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.