2.5" Oval to Round Exhaust Pipe Adapter Transition - Stainless Stainless Steel 304
ViperItem No: AD250RO
RRP $31
$28
Mandrel Bent Exhausts
Mandrel Bends
Mandrel bends are essential for building high-performance exhaust systems that require smooth, unrestricted flow. Unlike crush bends, mandrel bends maintain a consistent internal diameter through each curve — reducing back pressure and improving exhaust efficiency.
Our range includes round and oval bends in a wide variety of sizes and angles, making them perfect for both street and track setups. Whether you're fabricating an entire system or replacing a section, our mandrel bends are ideal for custom work.
Pair mandrel bends with pipe & tube for straight runs, flange plates for secure connections, or flexible joints to manage vibration and thermal movement.
For proper sealing and assembly, don’t forget gaskets, bolts, studs & nuts, and a full selection of exhaust clamps.
Mandrel bends are also commonly used with universal mufflers and extractors in both custom and performance applications. Available in aluminised or stainless steel — and ready to ship Australia-wide.
3" Oval to Round Exhaust Pipe Adapter Transition Stainless Steel 304
ViperItem No: AD300RO
RRP $31
$28
3.5" Oval to Round Exhaust Pipe Adapter Transition Stainless Steel 304
ViperItem No: AD350RO
RRP $39
$35
4" Oval to Round Exhaust Pipe Adapter Transition Stainless Steel 304
ViperItem No: AD400RO
RRP $49
$44
Mandrel Bend DONUT - 2" (51mm) x 360 Degree - ALUMINIUM ALLOY BRUSHED - Suitable for Air Intake & Intercoolers
ViperItem No: D200-AAB
RRP $79
$71
Mandrel Bend DONUT - 2.5" (63mm) x 360 Degree - ALUMINIUM ALLOY BRUSHED - Suitable for Air Intake & Intercoolers
ViperItem No: D250-AAB
RRP $101
$91
Mandrel Bend DONUT - 3" (76mm) x 360 Degree - ALUMINIUM ALLOY BRUSHED - Suitable for Air Intake & Intercoolers
ViperItem No: D300-AAB
RRP $137
$124
Mandrel Bend DONUT - 3.5" (89mm) x 360 Degree - ALUMINIUM ALLOY BRUSHED - Suitable for Air Intake & Intercoolers
ViperItem No: D350-AAB
RRP $164
$149
Mandrel Bend DONUT - 4" (101mm) x 360 Degree - ALUMINIUM ALLOY BRUSHED - Suitable for Air Intake & Intercoolers
ViperItem No: D400-AAB
RRP $191
$173
Mandrel Bend 1" (25mm) - 90 to 180 Degree - MILD STEEL 2 Options Available
ViperItem No: MB100-M
From $18
Mandrel Bend 1 1/4" (32mm) - 45 to 180 Degree - MILD STEEL 3 Options Available
ViperItem No: MB125-M
From $17
Mandrel Bend 1 1/4" (32mm) - 45 to 90 Degree - 304 STAINLESS Brushed 2 Options Available
ViperItem No: MB125-S304
From $25
Mandrel Bend 1 3/8" (35mm) - 45 to 180 Degree - MILD STEEL 3 Options Available
ViperItem No: MB138-M
From $19
Mandrel Bend 1 1/2" (38mm) - 30 to 360 Degree - MILD STEEL 5 Options Available
ViperItem No: MB150-M
From $11
Mandrel Bend 1 1/2" (38mm) - 30 to 180 Degree - 304 STAINLESS Brushed 4 Options Available
ViperItem No: MB150-S304
From $22
Mandrel Bend 1 1/2" (38mm) x 90 Degree - 304 Stainless Brushed TIGHT RADIUS
ViperItem No: MB150090-304TB
RRP $14
$12
Mandrel Bend 1 5/8" (41mm) - 45 to 180 Degree - MILD STEEL 3 Options Available
ViperItem No: MB158-M
From $11
Mandrel Bend 1 5/8" (41mm) - 45 to 180 Degree - 304 STAINLESS Brushed 3 Options Available
ViperItem No: MB158-S304
From $24
Mandrel Bend 1 3/4" (44mm) - 30 to 360 Degree - MILD STEEL 6 Options Available
ViperItem No: MB175-M
From $11
Mandrel Bend 1 3/4" (44mm) - 30 to 180 Degree - 304 STAINLESS Brushed 4 Options Available
ViperItem No: MB175-S304
From $25
Mandrel Bend 1 3/4" (44mm) - 45 to 360 Degree - 304 STAINLESS Brushed 3 Options Available - TIGHT RADIUS
ViperItem No: MB175-T304
From $14
Mandrel Bend 1 7/8" (48mm) - 30 to 180 Degree - MILD STEEL 5 Options Available
ViperItem No: MB178-M
From $12
Mandrel Bend 1 7/8" (48mm) - 45 to 180 Degree - 304 STAINLESS Brushed 3 Options Available
ViperItem No: MB178-S304
From $26
Mandrel Bend 2" (51mm) - 45 to 90 Degree - ALUMINIUM ALLOY - Raw Finish 2 Options Available
ViperItem No: MB200-AA
From $18
