Turbosmart Honda MSG50 Modular StraightGate50

If you're building a high-performance Honda with a turbocharger, controlling boost pressure is key to getting the most out of your engine safely. The Turbosmart Modular StraightGate50 is a popular external wastegate designed to help you manage that boost. It bolts directly onto many common turbocharger exhaust housings, making it a straightforward way to upgrade your car's forced induction system. This wastegate works by bleeding off excess exhaust gas before it can spin the turbocharger too fast, which helps keep boost levels consistent and prevents over-boosting.

This wastegate is built from solid materials, featuring a billet aluminum body and a stainless steel V-band clamp for a strong connection. The internal diaphragm is made from silicone-polyester, a material known for its resilience under high temperatures and pressures, ensuring reliable operation even when your engine is working hard. The StraightGate50 is designed to be compact, which helps with installation in tight engine bays often found in Honda vehicles. It comes with a 7 psi spring installed, but you can easily swap it out for different springs (sold separately) to tune your boost pressure precisely to your needs. This modular design also means you can configure it for different plumbing setups.

When installing an external wastegate like this, you'll need to plumb it into your exhaust system and connect it to your boost controller or ECU. It's a good idea to have a boost gauge installed so you can monitor your pressure accurately as you tune. Remember, this wastegate is not CARB approved and cannot be shipped to California.