Titanium Exhaust Manifold Stud Kit M8x1.25x55mm 12PCS

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RISON TITANIUM Exhaust Manifold Stud Kit M8x1.25x55mm 12PCS GR5 Titanium for Aftermarket Intake Manifolds

Product Description

RISON TITANIUM Exhaust Manifold Stud Kit – M8x1.25x55mm – 12PCS Set

A 12-piece titanium exhaust manifold stud kit with nuts and washers. Made from GR5 (Ti-6Al-4V) titanium — lighter than steel, strong at high temperatures, and it won't rust or seize.

The 55mm length is designed for aftermarket intake manifolds and intake manifolds using thermal gaskets. The extra 10mm over the standard 45mm stud provides the thread engagement needed when the combined flange and gasket thickness is greater than factory.

Specifications

Specification	Value
Thread Size	M8 × 1.25
Length	55mm
Material	GR5 Titanium Alloy (Ti-6Al-4V / TC4)
Kit Contents	12 studs + 12 nuts + 12 washers (36 components)
Tensile Strength	≥900 MPa
Recommended Torque	Consult your vehicle manufacturer's specification
Corrosion Resistance	100% rustproof
Pack	12 sets per kit

Fitment – Honda / Acura

The M8x1.25 thread pitch fits a wide range of Honda and Acura engines. Confirmed applications include:

Engine Series	Typical Vehicles	Years
B-Series (B16 / B18 / B20)	Civic EK/EG, Integra DC2, CR-V	1992–2001
D-Series (D15 / D16)	Civic, CRX, del Sol	1988–2000
F-Series (F20C / F22C - Exhaust)	S2000 (AP1/AP2)	1999–2009
H-Series (H22 / H23)	Prelude	1992–2001
K-Series (Intake with Thermal Spacer)	RSX, Civic Si, TSX	—

Important fitment note: This 55mm length is specifically for aftermarket intake manifolds, thermal/phenolic gaskets, and stacked spacer setups. For factory intake manifolds and exhaust manifolds/headers, the 45mm version is the standard fit.

Why Titanium for Exhaust Manifold Studs?

Heat resistant. Titanium maintains its strength at high temperatures — important for exhaust manifold applications where steel studs can weaken and seize over time.

Never rusts or seizes. Titanium doesn't corrode. That means no more snapped studs or seized nuts when you need to remove the manifold.

Lightweight. Roughly 45% lighter than steel — a small but real reduction in weight at the top of the engine.

Strong. Rolled threads and ≥900 MPa tensile strength for reliable clamping.

Finish Options – 12 Available

Finish	Process	Notes
Titanium Raw	GR5 titanium, cleaned and passivated, no coating	Natural metal look, no color variation
Burnt Blue	Hand flame-anodized (Flame Burnt)	Slight spot variation between pieces is normal — each set is done by hand
Gold	PVD vacuum coating	Uniform color, scratch and fade resistant
Black	PVD vacuum coating	Uniform color, scratch and fade resistant
Rainbow	PVD vacuum coating	Uniform color, scratch and fade resistant
PVD Burnt Blue	PVD vacuum coating	Same process as Gold/Black/Rainbow — uniform, no hand-made variation. Premium finish
Green	Standard titanium anodizing	Vivid electrolytic color
Purple	Standard titanium anodizing	Vivid electrolytic color
Candy	High-precision anodizing	Deeper, more saturated color
Blue Purple	High-precision anodizing	Deeper, more saturated color
Lake Blue	High-precision anodizing	Deeper, more saturated color

Burnt Blue finish note: Each set is hand flame-anodized, so slight color variation between pieces is normal and part of the character. If you need perfectly uniform color, choose PVD Burnt Blue instead.

Installation Notes

Do not install titanium fasteners dry. Galling (cold welding) can occur on the first install and permanently damage threads.

Clean the manifold and cylinder head threads thoroughly with a thread chaser and brake cleaner.
Apply nickel-based anti-seize to the stud threads only. Copper-based anti-seize must not be used with titanium (galvanic corrosion risk).
Hand-start each stud until finger-tight. Never use an impact gun to start titanium fasteners.
Torque to your vehicle manufacturer's specification using a calibrated torque wrench.
Re-check torque after the first heat cycle and again after 50–100 km.