[cycleguy55]

Originally Posted by 2bars

Now something to ask about side pipes. What and where do you get better flowing exhaust? I have a superformance

Much will depend upon whether you want to buy a set of complete sidepipes, or whether you want modify what you have.

Side Pipes:

• Firefly Specializing in Superformance after market
• Gas-N GAS-N Performance Products - Home

Mufflers:

• Flowmaster Slimline Search Results
• Classic Chambered Cobra Packs Classic Chambered Exhaust Inc. - Products
• Jones Exhaust Performance Exhaust Systems
• Stainless Specialties

Threads / discussions to check out:

• need sidepipe options to get the decibel level down
• SPF side pipes vs Gas-N: Exhaust options | Superformance Cobra Owners
• SPF side pipes vs Gas-N: FireFly or GAS-U pipes for Superformance
• Comments from owner testing of Flowmaster Slimine against others: "I had several visitors from the Cobra club watching these tests. Everyone noticed that the engine made more power and was a LOT [quieter]" Muffler Testing - Page 3 - FFCars.com : Factory Five Racing Discussion Forum
• Question about rattle in CR sidepipe