PLM WRX & STI Muffler Deletes V2: 2015-2021 Fitment FAQ
By Aftermarket Car Parts -Private Label Mfg | Published: 2026-11-05
Category: 제품 리뷰
Straight answers on PLM V2 muffler deletes for 2015-2021 WRX and STI: fitment by year, sound, installation, and what the axle-back kit actually changes.
Quick answer
The PLM V2 axle-back fits 2015-2021 WRX and STI, with the updated V2 design specifically covering 2020+ models. It replaces the factory mufflers with TIG-welded stainless steel and 4-inch tips, so expect a louder, more aggressive tone and less weight—not a full turbo-back system.
What the V2 update changes for 2020+ cars
The V2 is not just a cosmetic revision. PLM lists the updated design as fitting 2020+ WRX and STI, which matters if you own a late 2015-2021 car and have seen older axle-back listings that stop at 2019. The V2 also steps up to 4-inch stainless tips, so the rear view is more filled-out than the factory mufflers.
If you drive a 2015-2019 car, confirm the listing you buy is the V2 and not leftover V1 stock. The catalog record covers 2015+ fitment broadly, but the 2020+ callout is the clearest year-specific detail supplied.
Sound and weight: what a muffler delete actually does
This is a muffler bypass, not a resonated axle-back. Removing the factory mufflers is what unlocks the aggressive tone, and the lightweight stainless construction cuts weight compared with the stock pieces. The trade-off is drone and cold-start volume—there is no muffler left to soften either.
Because the catalog does not list measured decibel figures or drone data, treat sound clips as a rough guide only. Your perception will depend on whether you keep the factory mid-pipe and resonator, which this kit does not replace.
Where the axle-back stops and other exhaust parts begin
The PLM V2 is an axle-back kit, so it changes the rear section only. It does not include a downpipe, mid-pipe, or catalytic converter, and the catalog does not claim tuning or emissions compliance. If you want a full system, budget for those parts separately rather than expecting this kit to cover them.
PLM V2 muffler delete FAQ
- Will the PLM V2 fit my 2015-2021 WRX or STI?
- Yes for the 2015-2021 range, but the V2 update is specifically called out for 2020+ models. Check the listing title for V2 and confirm your model year before ordering. If you own a 2020 or 2021 car, verify the seller is shipping the V2, not an older revision.
- How loud is the WRX axle-back muffler delete sound?
- Louder and more aggressive than stock because the factory mufflers are removed. PLM does not publish decibel or drone figures, so volume is subjective. Expect more cold-start bark and highway presence. If you commute long distances, plan for drone or keep the factory resonator in place.
- What is included in the PLM V2 axle-back kit?
- The catalog describes an axle-back exhaust with stainless steel construction and 4-inch tips for 2015+ WRX and STI. It does not list gaskets, hardware, or a mid-pipe, so confirm contents with the seller before installation. Ask about gaskets and clamps up front so you are not missing parts mid-install.
- Can I install the PLM V2 muffler delete myself?
- It is an axle-back job, so it is typically a bolt-on replacement for the rear section. The catalog does not provide torque specs or a step-by-step procedure, so use the factory service manual for bolt torque and support the exhaust during removal. Spray the factory bolts with penetrant the night before; rusted hardware is the usual delay.
- Does the PLM V2 require a tune or affect emissions?
- No tune is mentioned in the catalog for this axle-back, and it does not replace the catalytic converter or downpipe. Emissions compliance is not stated, so check local rules before installing a muffler delete. Confirm your local inspection rules for muffler deletes before you buy.
Product facts
- PLM Subaru WRX & STI 2015 - 2021 Axle-Back Exhaust Muffler Deletes V2: PLM lists this as an axle-back exhaust, muffler bypass, muffler delete, or track pipe for 2015+ WRX and STI, built from lightweight TIG-welded stainless steel. The stainless construction resists corrosion and the bypass design is the source of the louder tone, so you know exactly what you are buying.
PLM Subaru WRX & STI 2015 - 2021 Axle-Back Exhaust Muffler Deletes V2 - PLM Subaru WRX & STI 2015 - 2021 Axle-Back Exhaust Muffler Deletes V2: The updated V2 design is specified for 2020+ models and uses larger 4-inch stainless steel exhaust tips. 2020-2021 owners get a confirmed fit, and the larger tips change the rear appearance as well as the sound.
