Glenn's Auto Performance

1426 products ★ 5.0

Glenn's Auto Performance is an online automotive retailer based out of Clearwater, Florida that specializes in LSX and LTX performance products.

Glenn's Auto Performance

All products

All Intake Manifolds & Accessories Silicone Hose Kits Customer Favorites Race Star Wheels Rebel Racing Offroad Fuel Injectors Throttle Bodies Headers Camshafts Fuel Rails Fuel Pumps Lifters Rockers Turbochargers Cold Air Intakes & Filters Exhaust Systems Chassis, Suspension & Brakes Valve Springs Catch Cans LS/LT Swap Components ECM & Tuning Nitrous Systems Fasteners Clutch & Flywheel All Products GTO (2004-2006) GM Truck (1999-2007) GM Truck (2007-2013) GM Truck (2014+) Camaro (1998-2002) Camaro (2010-2015) Camaro (2016+) Corvette C5 (1997-2004) Corvette C6 (2005-2013) Corvette C7 (2014-2019) CTS-V (2009-2015) TBSS (2006-2009) LS/LT Swap Brian Tooley Racing Ignition Gaskets Flex Fuel Pushrods Oil System Timing Components Fuel Pressure Regulators Texas Speed & Performance Fuel Injector Clinic Transmission Cooling Torque Converters

Grade 10.9 Zinc Coated LS/LT Header Bolt Set

Grade 10.9 Zinc Coated LS/LT Header Bolt Set

Stainless Steel LS/LT Header Bolt Set

Stainless Steel LS/LT Header Bolt Set

SPEED ENGINEERING LS TURBO HEADERS (FORWARD FACING)

SPEED ENGINEERING LS TURBO HEADERS (FORWARD FACING)

SPEED ENGINEERING SHORTY 99-06 GM TRUCK 6.0L (W/ EGR)

SPEED ENGINEERING SHORTY 99-06 GM TRUCK 6.0L (W/ EGR)

SPEED ENGINEERING SHORTY 99-13 GM TRUCK

SPEED ENGINEERING SHORTY 99-13 GM TRUCK

SPEED ENGINEERING LS SWAP 1-5/8" UNIVERSAL HUGGER HEADERS

SPEED ENGINEERING LS SWAP 1-5/8" UNIVERSAL HUGGER HEADERS

SPEED ENGINEERING LS SWAP 1-5/8" SHORTY HEADERS 1982-2005 S10

SPEED ENGINEERING LS SWAP 1-5/8" SHORTY HEADERS 1982-2005 S1

SPEED ENGINEERING LS SWAP HEADERS 1964-1981 GM CAR

SPEED ENGINEERING LS SWAP HEADERS 1964-1981 GM CAR

SPEED ENGINEERING LS SWAP HEADERS 1960+ C10 TRUCK

SPEED ENGINEERING LS SWAP HEADERS 1960+ C10 TRUCK

SPEED ENGINEERING LS SWAP 1-5/8" SHORTY HEADERS 1955-1974 GM CAR

SPEED ENGINEERING LS SWAP 1-5/8" SHORTY HEADERS 1955-1974 GM

SPEED ENGINEERING LS SWAP CAST IRON EXHAUST MANIFOLDS

SPEED ENGINEERING LS SWAP CAST IRON EXHAUST MANIFOLDS

SPEED ENGINEERING SHORTY 2014-2018 GM TRUCK

SPEED ENGINEERING SHORTY 2014-2018 GM TRUCK

SPEED ENGINEERING LT SWAP HEADERS 1960+ C10 TRUCK

SPEED ENGINEERING LT SWAP HEADERS 1960+ C10 TRUCK

SPEED ENGINEERING LT SWAP HEADERS 1964-1981 GM CAR

SPEED ENGINEERING LT SWAP HEADERS 1964-1981 GM CAR

SPEED ENGINEERING LS SWAP 1-3/4" UNIVERSAL HUGGER HEADERS

SPEED ENGINEERING LS SWAP 1-3/4" UNIVERSAL HUGGER HEADERS

SPEED ENGINEERING LS SWAP 1-3/4" SHORTY HEADERS 1982-2005 S10

SPEED ENGINEERING LS SWAP 1-3/4" SHORTY HEADERS 1982-2005 S1

SPEED ENGINEERING LS SWAP 1-3/4" SHORTY HEADERS 1955-1974 GM CAR

SPEED ENGINEERING LS SWAP 1-3/4" SHORTY HEADERS 1955-1974 GM

SPEED ENGINEERING LONG TUBE 93-97 CAMARO

SPEED ENGINEERING LONG TUBE 93-97 CAMARO

SPEED ENGINEERING Universal LS Swap Mid-Length Headers

SPEED ENGINEERING Universal LS Swap Mid-Length Headers

SPEED ENGINEERING LONG TUBE HEADERS 1998-2002 CAMARO

SPEED ENGINEERING LONG TUBE HEADERS 1998-2002 CAMARO

SPEED ENGINEERING LS Turbo Headers "Truck Series" (FORWARD FACING)

SPEED ENGINEERING LS Turbo Headers "Truck Series" (FORWARD F

SPEED ENGINEERING Universal LS Turbo Headers (FORWARD FACING)

SPEED ENGINEERING Universal LS Turbo Headers (FORWARD FACING

SPEED ENGINEERING Universal LT Turbo Headers (FORWARD FACING)

SPEED ENGINEERING Universal LT Turbo Headers (FORWARD FACING

SPEED ENGINEERING LONG TUBE HEADERS 99-06 GM TRUCK

SPEED ENGINEERING LONG TUBE HEADERS 99-06 GM TRUCK