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SpeedFactory Racing’s Titanium Exhaust Manifold Stud Kits include studs/washers/nuts made from ultra-strong Ti 6Al-4V, everything needed to repla...

SpeedFactory Racing designed this kit specifically for K-series motors as a cost effective alternative to its titanium counterparts. This kit gives...

The use of factory exhaust manifold bolts and studs, especially with an aftermarket header/turbo system, can result in stripped or broken bolts and...

SpeedFactory Racing offers this stainless steel manifold stud kit as a cost effective alternative to its titanium counterparts. This kit gives many...

The use of factory exhaust manifold bolts and studs, especially with an aftermarket header/turbo system, can result in stripped or broken bolts and...

“4-1 or 4-2-1?” Is a popular topic. 4-1 Really shines at high RPM, but performance differences are marginal so it really comes down to what you thi...

 BLOX Racing’s line of MLS stainless steel gaskets are the perfect solution for inferior turbo and exhaust gaskets that do not properly seal or end...

BLOX Racing is proud to offer its Performance DIY product line for today’s growing Do-It-Yourself fabricator.  Whether you are just learning to fab...

BLOX Racing is proud to offer its Performance DIY product line for today’s growing Do-It-Yourself fabricator. Whether you are just learning to fabr...

BLOX Racing offers a full line of DIY performance parts. BLOX Racing oxygen sensor bungs and fitting caps are available for any custom header or ex...

BLOX Racing offers a full line of DIY performance parts. BLOX Racing oxygen sensor bungs and fitting caps are available for any custom header or ex...

BLOX Racing offers a full line of DIY performance parts. BLOX Racing oxygen sensor bungs and fitting caps are available for any custom header or ex...

BLOX Racing offers a full line of DIY performance parts. The Performance DIY line is perfect for building and assembling your own high performance ...

BLOX Racing’s line of MLS stainless steel gaskets are the perfect solution for inferior turbo and exhaust gaskets that do not properly seal or end ...

BLOX Racing offers a full line of DIY performance parts. The Performance DIY line is perfect for building and assembling your own high performance ...

BLOX Racing offers a full line of DIY performance parts. The Performance DIY line is perfect for building and assembling your own high performance ...

BLOX is pleased to introduce its new line of MLS stainless steel gaskets. These are the perfect solution for inferior turbo gaskets that do not pro...

BLOX is pleased to introduce its new line of MLS stainless steel gaskets. These are the perfect solution for inferior turbo gaskets that do not pro...

BLOX Racing's all-black and standard version muffler delete kits are made from T304 stainless steel and TIG-welded for durability and reliability a...

BLOX Racing's Muffler Delete Kit for Toyota 86 and Subaru BRZ replace the OEM mufflers and greatly reduce the bulk and weight associated with them....

BLOX Racing's exhaust system for the 2015+ Subaru WRX is manufactured using complete T304 stainless steel. The 3" cat-back system features mandrel-...

This is the crown jewel of all exhaust systems for the SCION FR-S / Subaru BRZ! This beautiful piece of craftsmanship ~ art ~ is 100% hand-made and...

BLOX Racing is pleased to introduce its first application in its new line of exhaust systems. The first to be released is for the SCION FR-S / Suba...

BLOX Racing's 2-pc downpipe kit is made using high quality, T304 stainless steel tubing. Tubing is mandrel-bend and TIG-welded.The thick flanges pr...

*This item is not available for purchase in California* BLOX Racing's FR-S/BRZ Front Pipes are now available in two versions: mandrel-bent T304 and...

*This item is not available for purchase in California* BLOX Racing's FR-S/BRZ Front Pipes are now available in two versions: mandrel-bent T304 and...

*This item is not available for purchase in California* BLOX Racing is proud to introduce its overpipe (S-pipe) for FR-S and BRZ performance enthus...

*This item is not available for purchase in California* BLOX Racing is proud to introduce its UEL (unequal length) headers for FR-S and BRZ perform...

Nissan’s newest Sentra is known for its good looks, standard equipment, improved ride quality, and handling characteristics. However, there is one ...

The first-generation Scion FRS/Toyota 86 and Subaru BRZ have become classics in the sport compact car scene. From extreme race cars to sporty daily...

The 10th Gen Civic Type-R needs a more aggressive exhaust note since the factory system is nearly silent. Increase the style, performance, and much...

The 2022+ Civic Si and 2023+ Integra deserve a better exhaust! The factory systems are nearly silent, one of the biggest downsides to Honda’s new s...

Upgrade your 2022+ Honda Civic Si with the DC Sports Dual Exit Exhaust, available in polished or black chrome tip finishes. Designed to enhance exh...

MagnaFlow has spent the past 30+ years building its reputation as the industry leader by specializing on the best catalytic converter and exhaust...