Silicone Hump 2.50"

4 Layer Fiberglass reinforced silicone.  This is the highest quality silicone coupler you can buy.  2.50" straight, 3.0" long

Silicone Transition 1.75" - 2.50"

4 Layer Fiberglass reinforced silicone.  This is the highest quality silicone coupler you can buy.  1.75" to 2.50" transition 4.00" long This fits the Evolution 8/9/10 factory turbo outlet.

Silicone Transition 2.00" - 2.50"

4 Layer Fiberglass reinforced silicone.  This is the highest quality silicone coupler you can buy.  2.00" to 2.50" transition 3.0" long

Silicone Transition 2.50" - 3.00"

4 Layer Fiberglass reinforced silicone.  This is the highest quality silicone coupler you can buy.  2.50" to 3.00" transition 4.00" long

Silicone Transition 2.50" to 2.75"

4 Layer Fiberglass reinforced silicone.  This is the highest quality silicone coupler you can buy.  2.50" to 2.75" transition 3.15" long

Silicone Transition 2.75" - 3.00"

4 Layer Fiberglass reinforced silicone.  This is the highest quality silicone coupler you can buy.  2.75" to 3.00" transition 3.5" long

Silicone Transition 3.00" - 3.50"

4 Layer Fiberglass reinforced silicone.  This is the highest quality silicone coupler you can buy.  3.00" to 3.50" transition 3" long

Silicone Transition 3.00" to 3.18"

4 Layer Fiberglass reinforced silicone.  This is the highest quality silicone coupler you can buy.  3.00" to 3.18" transition 3" long

Silicone Transition 3.50" - 4.00"

4 Layer Fiberglass reinforced silicone.  This is the highest quality silicone coupler you can buy.  3.50" to 4.00" transition 3" long