The H22A Ramhorn is constructed from mandrel-bent, T304 stainless steel. The Schedule 40 tubing is TIG-welded and features a T3 turbo inlet flange and accommodates most popular 38mm-40mm V-band wastegates.

The Ramhorn manifold is a direct-fit inside Prelude and most Accord chassis. The manifold will also work with H22A swaps in Civics and Integras, including H2B swaps.

  • T304 stainless steel
  • Schedule 40
  • T3 turbo inlet flange, fits up S-cover
  • Accommodates 38mm-40mm V-band wastegates


BLOX Racing is proud to add new items into its performance induction and DIY product categories.

New high performance products include heavy duty and MLS stainless steel gaskets, including high-boost shaft seals for OEM Mitsubishi Evolution VIII, IX throttle bodies. Many of BLOX Racing’s new gaskets are universal which can be used in any application with matching bolt holes and specs.

However, BLOX Racing is also releasing specially designed products for Honda S2000; Mitsubishi Evolution VIII, IX; Toyota 86/Subaru BRZ (FA20); WRX and STi (EJ20,EJ25). Certain, new products are pictured below.

Heavy duty replacement gasket for Evo8 & Evo9 OEM throttle body

High boost shaft seals for Evo8 & Evo9 OEM throttle body

2″ 2-Hole MLS exhaust gasket

3″ 2-Hole MLS exhaust gasket

S2000-spec 2.75″ 3-Hole catalytic converter gasket

38mm external wastegate stainless steel gasket

Subaru EJ20/EJ25 Exhaust manifold to Crossover pipe MLS gasket

Subaru EJ20/EJ25 Intercooler inlet gasket

Subaru EJ20/EJ25 Intercooler BOV gasket

Subaru-spec 60mm exhaust donut

Subaru-spec 60mm exhaust collector flange

Subaru dual-fit 2.25″/2.5″, Universal 2-Hole exhaust gasket

Subaru dual-fit 2.25″/2.5″, Universal 2-Hole MLS exhaust gasket


SpeedFactory Tuning’s BLOX Racing SFWD Honda Civic set a new personal best ET yesterday at Auto Club Famoso Raceway with a 8.29/179.18 during elimination rounds.

The BLOX Racing Civic qualified 3rd overall with 8.50 and 8.60 runs, respectively. Both runs were hampered by 2-step settings and new, bigger slicks. “This is a brand new engine that we put in right before we left Tacoma”, says Matt Hurlbut, team manager. “We knew we’d experience certain issues right off the trailer, but the crew did a great job dialing in all the new (BLOX) parts, suspension settings and 2-step… which obviously showed with the car’s new best ET. (Driver) Joel (Sipes) did a fantastic job behind the wheel.” The car’s previous all time best was an 8.38.

The BLOX Racing SFWD Honda Civic also put down an 8.38/178.64 run during the final round of competition secure the class win and first win of the season. “We’re obviously happy with the win, but we’re more excited about our new partnership (with BLOX Racing) and the potential of the car going even quicker and faster”, stated Matt.

Joel Sipes, driver of the BLOX Racing SFWD Honda Civic, after winning the FWD category yesterday at Auto Club Famoso Raceway.


SpeedFactory Tuning’s BLOX Racing SFWD Honda Civic made its official debut this morning at Auto Club Famoso Raceway in McFarland (Bakersfield), CA.

It’s scheduled to compete in the event’s FWD category featuring other turbocharged 4-cyl and 6-cyl entries.

We’ll be back with a new post updating qualifying times and results.