When it comes to exhaust, size matters. If you bolt headers onto your G8 but keep the small factory mid-pipes, you’re bottlenecking the whole system. The engine can only move as much air as the smallest section allows. A true 3-inch setup from front to back is how you actually unlock the power you’re chasing. Open it up. Let the motor breathe the way it’s supposed to. Shop true 3-inch exhaust solutions at G8Only.com #g8only #PontiacG8 #HoldenCommodore #LSPlatform #GMPerformance