Our Pressure Relief Spacers are not just for nitrous racers!
Pressure Relief Spacers are a billet one inch spacer that features pressure relief technology. For ages, one inch spacers have been used to boost power by adding plenum volume. In addition to making more power these spacers give you the benefit of the pressure relief on all four sides. Our Pressure Relief Spacers help relieve pressure suffered during start-up backfire or a nitrous-style backfire.
Instead of a metal disc to pop, these plates feature four spring-loaded panels with O-ring seats. This design gives you the best in performance and pressure relief. The panel returns to its original position following a backfire event. Spring loaded plates, compared to standard burst disc style plates, means not being left with a massive vacuum leak after a back fire. It also means less parts to buy and replace, or pieces to potentially be in need of at the track!
The inside diameter of the 4500 spacer is 5″ x 5″
The inside diameter of the 4150 spacer is 3 5/8″ x 3 5/8″