Holley Power Valve (3.5″) These power valves are an important component in the power enrichment circuit of Holley's performance carburetors. They operate by using engine vacuum to control their opening and closing rate. When they open, additional fuel...

Holley Power Valve (2.5″) These power valves are an important component in the power enrichment circuit of Holley's performance carburetors. They operate by using engine vacuum to control their opening and closing rate. When they open, additional fuel...

Pro Header Gasket Set Complete gasket set for the proper installation of our headers. Pro header gasket kits come with a two-bolt OE collector gasket to match the collector on our Pro Header. Kit Includes: OEM cylinder head-to header...

Experience the perfect balance of performance, tone, and longevity with the 2 1/2" Pro Flow 3 Chamber Muffler (14" Satin). Crafted from fully welded stainless steel, this high-performance muffler uses a unique 3-chamber, packing-free design, providing...

Upgrade your vehicle’s sound and performance with the Pro Flow 3 Chamber Muffler! Designed for enthusiasts looking for a deep, throaty exhaust note with improved power, this 14" satin-finished muffler features a true 3-chamber design with no...

Upgrade your exhaust system with the 2 1/4" Pro Flow Muffler (14" Polished Finish), the same top-quality component featured in our Pro Flow Exhaust Systems. Engineered for performance and longevity, this muffler boasts a fully welded, polished stainless...

2 1/2" Pro Flow Muffler (14") - Polished Upgrade your vehicle’s exhaust system with the 2 1/2" Pro Flow Muffler (14" Polished)—the same performance muffler featured in all of our Pro Flow Exhaust Systems! Designed with enthusiasts in mind,...

Resonator (w/o Inlet & Outlet Tubes) These are great to use as a muffler for that old school sound, or they can be used in conjunction with the LC Engineering Pro Flow Exhaust system to for a quieter tone. This resonator features high temp long...

Resonator (w/o Inlet & Outlet Tubes) These are great to use as a muffler for that old school sound, or they can be used in conjunction with the LC Engineering Pro Flow Exhaust system for a quieter tone. This resonator features a high temp long...

Test Pipe (12.5" x 2.25" Flange) Replace your restrictive catalytic converter with our high flow test pipe. This test pipe is made of stainless steel and comes with a high-temp ceramic coating to match our header and exhaust systems. This pipe will...

Test Pipe (17.5" x 2.25" Flange) Replace your restrictive catalytic converter with our high flow test pipe. This test pipe is made of stainless steel and comes with a high-temp ceramic coating to match our header and exhaust systems. This pipe will...

Test Pipe (17.5" x 2.50" Flange) Replace your restrictive catalytic converter with our high flow test pipe. This test pipe is made of stainless steel and comes with a high-temp ceramic coating to match our header and exhaust systems. This pipe will...