350Z/G35 Megan Racing Test Pipes & Down Pipes - 2.5" T304 Stainless | VQ35DE/HR Performance | High-Flow Cat Delete | Direct Bolt-On Exhaust Upgrade

Wake up your DE or HR VQ with Megan Racing Test Pipes & Down Pipes engineered for 2003-2008 Nissan 350Z and 2003-2008 Infiniti G35 Coupe/Sedan by removing the restrictive factory primary catalytic converters and swapping in free-flowing 2.5" mandrel-bent T304 stainless steel downpipes that eliminate the biggest exhaust bottleneck on the VQ35 platform, dropping backpressure and increasing exhaust velocity so your V6 can finally breathe and rev out like it should, delivering a proven 10-15whp and 8-12wtq gain on stock cars and 18+whp with supporting mods and a tune while transforming the quiet OEM exhaust note into a deep, aggressive, raspy VQ growl with louder cold starts, sharper throttle response, and that signature high-RPM scream that makes the Z and G sound as fast as they look, and these Megan Racing pipes are built from thick 14-gauge T304 stainless with full TIG-welded seams, CNC-machined 10mm 3-bolt flanges that are surface-milled flat and port-matched to VQ35DE/HR exhaust ports for a leak-free seal, and finished in brushed satin or polished mirror to resist corrosion, heat discoloration, and cracking through years of street and track abuse, and they’re available in non-resonated for maximum volume, pops, and raw track aggression or resonated with internal spiral-flow resonators that cut 1800-2500 RPM drone by 60% for daily drivers without killing horsepower, and both versions include O2 sensor bungs in the factory location plus optional angled defoulers to help prevent P0420/P0430 CEL codes on most stock ECUs, though a tune is recommended for optimal AFRs and to fully disable codes on 2005+ HR models, and fitment is 100% direct bolt-on using all OEM mounting points so they mate to stock exhaust manifolds or aftermarket headers and your factory y-pipe or any cat-back system with zero cutting, welding, or modifications required, and they clear factory heat shields, steering components, crossmembers, and sway bars on RWD and AWD G35x models with manual or automatic transmissions, and the kit ships complete with high-temp multi-layer steel exhaust gaskets, Grade 10.9 zinc-plated hardware, and anti-seize for a leak-free install that takes 1-2 hours on a lift with basic tools, and they pair perfectly with Megan Racing y-pipes, OE-RS exhausts, or other aftermarket cat-backs and intakes to build a full bolt-on VQ35 exhaust that sounds exotic and pulls hard to redline, so if your 350Z or G35 feels choked up, sounds stock, and leaves easy power on the table, Megan Racing Test Pipes & Down Pipes are the most cost-effective mod for unlocking real horsepower, aggressive VQ tone, and sharper throttle response, and every set is pressure-tested, fixture-checked for alignment, and inspected for weld quality and flange flatness so you get the sound and gains of premium brands without warped flanges, cracked welds, or fitment headaches you get from cheap eBay pipes.