Bolt on a SLP PowerFlo™ Stainless Steel Catalyst-Back Exhaust System and pump up the power and efficiency of your 1999-07 Silverado/Sierra including "Classic" (GMT 800 Series only). This 100% mandrel-bent system is equipped with an ultra-low-restriction muffler for optimal performance and features our exclusive 3.5" double-wall tips for unmatched appearance. Expect increases of up to 12 hp and that deep, muscle-car rumble you'll only get from SLP. Each pickup truck system includes 45º angle adapters, allowing for rear-or side-exit tailpipe configuration.

NOTE: Fits two-and four-wheel-drive Silverado and Sierra (including '07 Classic) equipped with the 4.8 or 5.3L engine.

PowerFlo™ catalyst-back exhaust systems for Silverado/Sierra feature:

• Lifetime Warranty
• Hand-crafted from 304 stainless steel
• Easy bolt-on installation
• Mandrel-bent pipes to minimize exhaust gas restrictions
• Distinctive stainless tips

SLP PT# 31057 - SLP Powerflo Exhaust System - 2003-07 5.3L/4.8L Silverado & Sierra Reg. Cab/Short Bed)