Stifflers

Stifflers Ladies Tanks Are Here! Ladies... we heard you loud & clear! Our newest edition are these women's Ideal Racerback Tanks that feature a 60/40 cotton/polyester blend. Stay cool and...

Not Getting Any Response, Make it Stiff! Installing a Stifflers strut tower brace adds strength and stiffness to the front end by integrating the strut towers and firewall, greatly reducing flex and...

Not Getting Any Response, Make it Stiff! Installing a Stifflers strut tower brace adds strength and stiffness to the front end by integrating the strut towers and firewall, greatly reducing flex and...

The Web brace ties together our full length subframe connectors andstiffening rails, creating the ultimate in chassis stiffening! As a key component of Stifflers Fully Integrated Technology...

Stifflers Built on American Soil T-shirt! Get yours today! Make a bold statement with this patriotic themed Built on American Soil t-shirts. Available only in black, these 100% cotton Gildan...

Stifflers Definition T-shirt! Get yours today! Make a clear statement with the Stifflers Definition t-shirt. These 100% cotton Gildan Softstyle shirts are a fan favorite and sure to be a...

Stifflers Wheel Stand T-shirt! Get yours today! Are you ready for the competition? Get your Competition Proven Wheel Stand t-shirt featuring Ed Bennett III/Clair Stewart Racing. These 100% cotton...

'65 - '70 Mustang Custom Transmission Install Kit* (*Does NOT include transmission mount. The ’65-‘70 OEM rubber transmission mount will not work with this crossmember kit) Custom install...

Step Up to Stifflers FIT System and Stay in Shape... Twisting, bending, twisting, bending......unlike a human, this is NOT the way a car stays in shape! Even everyday driving puts your car through a...

The FIT System is a modular approach to achieving the ultimate in chassis stiffness and strength through design. By integrating three key components into a modular system, the Fully Integrated...

Improve Your Braking Performance! Even under normal driving conditions, factory rubber hoses expand, resulting in spongy, slow and inconsistent braking. This stainless steel brake hose...

Direct replacement for 1979 - 1981 Foxbody Mustang! This crossmember is designed to fit the narrow (2 ¾") mounting bracket of the 79~81 Foxbody Mustangs and  requires No...

Upgrading to a C4, Power Glide, TH-350, or Top Loader transmission?  You need this! Here's it is, a direct fit for upgrading your Fox to a C4, Power Glide*,TH-350*, or Top Loader transmission...

Putting a T-45, T-45 Cobra Spec, T-56 (includes Magnum & XL), TR-3650 or TH-400 in your Fox?We have the Crossmember for you! A direct fit for upgrading your Fox to a T-45, T-45 Cobra Spec, T-56,...

Works with more applications...T-5, AOD, AODE, 4R70W, G101A, GF5R, TKO, TKX, TR-3550, C6 & 4L60E**! This unique single tube design adds stiffness and strength far beyond that of the OEM versions...