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2018 GMC Sierra 1500 Catback

Looking for aftermarket parts to modify or upgrade your 2018 GMC Sierra 1500 with catback? At Tunersports.com we carry a huge selection of the top name brand performance catback parts and accessories.

Catback Parts:

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aFe Exhaust Cat Back

IN STOCK - DROPSHIPS 49-34131-B This system produced gains of up to +14 HP and +17 lbs. x Ft. TQ., as measured on our in-house dyno. This cat-back exhaust system is constructed of 3" mandrel-bent 304 stainless steel tubing for maximum strength and durability. This system features a high-flow stainless steel, producing an aggressiv... aFe Gemini XV 3in 304 SS Cat-Back Exhaust 09-18 GM Trucks V6-4.3/V8-4.8/5.3L w/ Black Tips 2009-2018 GMC Sierra 1500 SLE / SLT 2014-2018 GMC Sierra 1500 Base 2017-2018 GMC Sierra 1500 Denali $1,852.00 Details
IN STOCK - DROPSHIPS 49-34131-P This system produced gains of up to +14 HP and +17 lbs. x Ft. TQ., as measured on our in-house dyno. This cat-back exhaust system is constructed of 3" mandrel-bent 304 stainless steel tubing for maximum strength and durability. This system features a high-flow stainless steel, producing an aggressiv... aFe Gemini XV Cat-Back Exhaust System GM Trucks 09-18 V6-4.3/V8-4.8/5.3L- Cut-Out Polished 2009-2018 GMC Sierra 1500 SLE / SLT 2014-2018 GMC Sierra 1500 Base 2017-2018 GMC Sierra 1500 Denali $1,684.00 Details
IN STOCK - DROPSHIPS 49-34132-B This cat-back exhaust system is constructed of 3 IN mandrel-bent 304 stainless steel tubing for maximum strength and durability. This system features a high-flow stainless steel, producing an aggressive sound. Muffler finish may vary. Finishing off this exhaust system are dual 4-1/2 IN diameter blac... aFe Gemini XV 3in 304 SS Cat-Back Exhaust w/ Cutout 14-19 GM Trucks 4.3L/5.3L w/ Black Tips 2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT $1,852.00 Details
OUT OF STOCK 49-34132-P This cat-back exhaust system is constructed of 3" mandrel-bent 304 stainless steel tubing for maximum strength and durability. This system features a high-flow stainless steel, producing an aggressive sound. Muffler finish may vary. Finishing off this exhaust system are dual 4-1/2" diameter polished... aFe Gemini XV 3in 304SS CB Exhaust w/ Cutout 14-19 GM Trucks 4.3/5.3L w/ Pol Tips - CrewCab/Extended 2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT $1,684.00 Details
IN STOCK - DROPSHIPS 49-34133-B This system produced gains of up to +14 HP and +17 lbs. x Ft. TQ., as measured on our in-house dyno. This cat-back exhaust system is constructed of 3" mandrel-bent 304 stainless steel tubing for maximum strength and durability. This system features a high-flow stainless steel, producing an aggressiv... aFe Gemini XV 3in 304 SS Cat-Back Exhaust w/ Cutout 09-18 GM Trucks 4.3L/4.8L/5.3L w/ Black Tips 2009-2018 GMC Sierra 1500 SLE / SLT 2014-2018 GMC Sierra 1500 Base 2017-2018 GMC Sierra 1500 Denali $1,852.00 Details
IN STOCK - DROPSHIPS 49-34133-P This system produced gains of up to +14 HP and +17 lbs. x Ft. TQ., as measured on our in-house dyno. This cat-back exhaust system is constructed of 3" mandrel-bent 304 stainless steel tubing for maximum strength and durability. This system features a high-flow stainless steel, producing an aggressiv... aFe Gemini XV Cat-Back Exhaust System GM Trucks 09-18 V6-4.3/V8-4.8/5.3L- Cut-Out Polished 2009-2018 GMC Sierra 1500 SLE / SLT 2014-2018 GMC Sierra 1500 Base 2017-2018 GMC Sierra 1500 Denali $1,684.00 Details
IN STOCK - LOW 49-44038-B The new MACH Force XP exhaust is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque; and lower EGTs. MACH Force XP exhaust systems are the perfect combination o... aFe MACHForce XP Exh CB, GM Silverado/Sierra 1500 2014 V*-5.3/6.2L Black tip 2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT $953.00 Details
IN STOCK - DROPSHIPS 49-44038-P The new MACH Force XP exhaust is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque; and lower EGTs. MACH Force XP exhaust systems are the perfect combination o... aFe MACHForce XP Exh CB, Stainless steel GM Silverado/Sierra 1500 2014 V*-5.3/6.2L Polished tip 2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT $884.00 Details
OUT OF STOCK 49-44057-B The new MACH Force XP exhaust is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque; and lower EGTs. MACH Force XP exhaust systems are the perfect combination o... aFe MACH Force-Xp Cat-Back Exhaust GM Silverado/Sierra 1500 09-18/ Limited 2019 V6-4.3/V8-4.8/5.3L 2009-2018 GMC Sierra 1500 SLE / SLT 2014-2018 GMC Sierra 1500 Base / Denali $1,532.00 Details
IN STOCK - DROPSHIPS 49-44057-P The new MACH Force XP exhaust is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque; and lower EGTs. MACH Force XP exhaust systems are the perfect combination o... aFe Mach Force-XP Exhaust 3in Cat-Back SS 14-15 GM 1500 Trucks 4.3L/5.3L Dual Split w/ Polished Tip 2009-2018 GMC Sierra 1500 SLE / SLT 2014-2018 GMC Sierra 1500 Base / Denali $1,394.00 Details
OUT OF STOCK 49-44062-B Introducing an all new Rebel Series Dual Center Exit Cat-Back exhaust system for the Jeep Wrangler (JK) with V6-3.6L/3.8L engine. This unique Rebel Series exhaust system is designed with dual center exit tips for an aggressive look. The Tips are 4-1/2" with aFe power plates and constructed out of st... aFe Rebel Series CB 3in Middle Side Exit SS Exht w/ Black Tips 09-16 Chevy Silverado/GMC Sierra 1500 2009-2018 GMC Sierra 1500 SLE / SLT 2014-2018 GMC Sierra 1500 Base / Denali $1,153.00 Details
IN STOCK - LOW 49-44062-P Introducing an all new Rebel Series Dual Center Exit Cat-Back exhaust system for the Jeep Wrangler (JK) with V6-3.6L/3.8L engine. This unique Rebel Series exhaust system is designed with dual center exit tips for an aggressive look. The Tips are 4-1/2" with aFe power plates and constructed out of st... aFe Rebel Series CB 3in Middle Side Exit SS Exht w/Polish Tips 09-16 Chevy Silverado/GMC Sierra 1500 2009-2018 GMC Sierra 1500 SLE / SLT 2014-2018 GMC Sierra 1500 Base / Denali $1,049.00 Details
IN STOCK - DROPSHIPS 49-44070-B Introducing an all new Rebel Series Dual Center Exit Cat-Back exhaust system for the Jeep Wrangler (JK) with V6-3.6L/3.8L engine. This unique Rebel Series exhaust system is designed with dual center exit tips for an aggressive look. The Tips are 4-1/2" with aFe power plates and constructed out of st... aFe Rebel Series CB Middle-Side Exit SS Exhaust w/ Black Tips 09-16 GM Silverado/Sierra V6/V8 2009-2018 GMC Sierra 1500 SLE 2014-2018 GMC Sierra 1500 Base $1,153.00 Details
IN STOCK - DROPSHIPS 49-44070-P Introducing an all new Rebel Series Dual Center Exit Cat-Back exhaust system for the Jeep Wrangler (JK) with V6-3.6L/3.8L engine. This unique Rebel Series exhaust system is designed with dual center exit tips for an aggressive look. The Tips are 4-1/2" with aFe power plates and constructed out of st... aFe Rebel Series CB Middle-Side Exit SS Exhaust w/ Polished Tips 09-16 GM Silverado/Sierra V6/V8 2009-2018 GMC Sierra 1500 SLE 2014-2018 GMC Sierra 1500 Base $1,049.00 Details
IN STOCK - DROPSHIPS 49-44071-B The new MACH Force XP exhaust is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque; and lower EGTs. MACH Force XP exhaust systems are the perfect combination o... aFe MACH Force-Xp 3in CB SS Dual Exhaust w/Black Tips 09-16 GM Silverado/Sierra 4.3L/4.8L/5.3L 2009-2018 GMC Sierra 1500 SLE / SLT 2014-2018 GMC Sierra 1500 Base / Denali $1,153.00 Details
OUT OF STOCK 49-44071-P The new MACH Force XP exhaust is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque; and lower EGTs. MACH Force XP exhaust systems are the perfect combination o... aFe MACH Force-Xp 3in CB SS Dual Exhaust w/Polished Tips 09-16 GM Silverado/Sierra 4.3L/4.8L/5.3L 2009-2018 GMC Sierra 1500 SLE / SLT 2014-2018 GMC Sierra 1500 Base / Denali $1,049.00 Details
OUT OF STOCK 49-44072-B aFe introduces the MACH Force XP exhaust system for the BMW M5 F10 twin-turbo. In recent testing this system produced 18 horsepower and 30 lbs. x ft. of torque. This unique exhaust system is constructed from TIG-welded, 3 in. mandrel bent 304 stainless steel and uses quad, high-flow mufflers. This s... aFe MACHForce XP Exhausts Cat-Back Black Tip 09-17 GM Silverado 1500 4.3/5.3L RegCab SB/LB 2009-2018 GMC Sierra 1500 SLE / SLT 2010-2018 GMC Sierra 1500 Denali 2014-2018 GMC Sierra 1500 Base $1,000.00 Details
OUT OF STOCK 49-44072-P aFe introduces the MACH Force XP exhaust system for the BMW M5 F10 twin-turbo. In recent testing this system produced 18 horsepower and 30 lbs. x ft. of torque. This unique exhaust system is constructed from TIG-welded, 3 in. mandrel bent 304 stainless steel and uses quad, high-flow mufflers. This s... aFe MACHForce XP Exhausts Cat-Back Polished Tips 09-17 GM Silverado 1500 4.3/5.3L RegCab SB/LB 2009-2018 GMC Sierra 1500 SLE / SLT 2010-2018 GMC Sierra 1500 Denali 2014-2018 GMC Sierra 1500 Base $911.00 Details
IN STOCK - DROPSHIPS 49-44098-B This Rebel Series exhaust is a dual, middle-side exit system for the 2009-2018 GM Silverado/Sierra 1500 Crew Cab/Long Bed and delivers +14 horsepower and +17 lbs. x ft. of torque as measured on our in-house dyno. 3" into dual 2-1/2" mandrel bent stainless steel tubing and high flow muffler offers ma... aFe Rebel Series 3in to 2.5in 409 SS Cat-Back Exhaust w/ Black Tips 09-18 GM Silverado/Sierra 5.4L 2009-2018 GMC Sierra 1500 SLE / SLT 2014-2018 GMC Sierra 1500 Base / Denali $1,153.00 Details
IN STOCK - DROPSHIPS 49-44098-P This Rebel Series exhaust is a dual, middle-side exit system for the 2009-2018 GM Silverado/Sierra 1500 Crew Cab/Long Bed and delivers +14 horsepower and +17 lbs. x ft. of torque as measured on our in-house dyno. 3" into dual 2-1/2" mandrel bent stainless steel tubing and high flow muffler offers ma... aFe Rebel Series 3in-2.5in 409 SS Cat-Back Exhaust 09-18 GM Silverado/Sierra 1500 V6-4.3L / V8-4.6L 2009-2018 GMC Sierra 1500 SLE / SLT 2014-2018 GMC Sierra 1500 Base / Denali $1,049.00 Details
OUT OF STOCK 49-44111-B aFe Apollo GT Series 3 IN 409 SS Cat-Back Exhaust System w/ Black Tip GM Sierra 1500 09-18 2009-2018 GMC Sierra 1500 SLE 2014-2018 GMC Sierra 1500 Base $1,153.00 Details
IN STOCK - DROPSHIPS 49-44111-P aFe Apollo GT Series 3 IN 409 SS Cat-Back Exhaust System w/ Polish Tip GM Sierra 1500 09-18 2009-2018 GMC Sierra 1500 SLE 2014-2018 GMC Sierra 1500 Base $1,049.00 Details
OUT OF STOCK 49-44112-B aFe Apollo GT Series 3in 409SS GM Silverado/Sierra 1500 09-19 V6-4.3/V8-4.8/5.3L - Black 2009-2018 GMC Sierra 1500 SLE / SLT 2014-2018 GMC Sierra 1500 Base / Denali $1,153.00 Details
OUT OF STOCK 49-44112-P aFe Apollo GT Series 3in 409SS GM Silverado/Sierra 1500 09-19 V6-4.3/V8-4.8/5.3L - Polished 2009-2018 GMC Sierra 1500 SLE / SLT 2014-2018 GMC Sierra 1500 Base / Denali $1,049.00 Details
OUT OF STOCK 49-44116-B 4" 409 Stainless Steel Construction: This cat-back exhaust system is constructed of 4" mandrel-bent 409 stainless steel tubing for maximum strength and durability. High-Flow 409 Stainless Steel Muffler: This system features a high-flow 409 stainless steel muffler, producing a deep sound. 5" Diame... aFe Apollo GT Series 4in 409SS Cat Back Exh System w/Blk Tip 14-18 GM Silverado/Sierra 1500 V8-6.2L 2014-2018 GMC Sierra 1500 Denali / SLT $884.00 Details