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GrimmSpeed WRX (15-21) 3″ J-Pipe with GESI High Flow Cat

GrimmSpeed has simply launched their all new Model 2 or V2 J-Pipe, which can be changing their longer term V1. This new J-Pipe comes same old with the all new GESI excessive circulation catalytic converter to verify it’s 49 state smog criminal (take a look at with your native and newest regulations to make sure). See beneath for a complete description of this emblem new efficiency phase to your Subaru WRX!

Simply because an current GrimmSpeed Product is among the highest appearing, perfect high quality, fan-favorite portions within the business, doesn’t imply there isn’t room for development. The fully-redesigned GrimmSpeed Model 2 GESI-Catted J-Pipe for the 15-21 WRX is the easiest instance. We took the whole lot that made our authentic J-Pipe so nice and taken it to the following degree!

The very first thing you’ll understand is that The GrimmSpeed Model 2 J-Pipe is now a 2-piece design. This now not best keeps the U.S. welding/production, packaging and delivery prices right down to stay the tip product inside an affordable value vary, but it surely additionally lets in for more uncomplicated solo-installation of the pipe. Not more having to make use of exhaust stands or taking your probabilities by way of looking to steadiness a 6′ metal pipe within the air! 


Some other main design alternate are the solid metal creditors surrounding the cat. Those now not best glance extraordinary stamped with the GrimmSpeed emblem, but additionally permit for optimized exhaust circulation in comparison to different aftermarket choices. They come with a third bung, supplying you with the way to run an extra sensor/gauge with no need to drill and faucet the unit. The solid creditors and 2-piece design of this pipe additionally allowed us to additional strengthen flooring clearance over our authentic design. This ends up in an extra inch of clearance, particularly the most important for diminished vehicles.  

The inclusion of the GESI Catalytic Converter is among the main adjustments for the V2 J-Pipe. Whilst preserving the high-flow traits of our former high-flow cat, the GESI is a a lot more powerful unit in its skill to scrub particulate topic that is a part of the combustion procedure, whilst preserving the entire advantages which might be anticipated from a GrimmSpeed Product. It additionally offers us the versatility to insert it in a a lot more fascinating and higher running location, mimicking OEM placement.

The theory of upgrading an already-solid product just like the GrimmSpeed V1 J-Pipe used to be a large problem, however by way of permitting our Engineering Crew to focal point meticulously on the main points, we had been ready to make what we might optimistically name the maximum delicate 15-21 WRX J-Pipe in the marketplace.
The Model 2 GESI J-Pipe does retain the most efficient qualities of the unique: difficult 3″ 304 stainless-steel development, thick 1/2″ flanges and the kind of have compatibility and end that you simply’ve come to be expecting from GrimmSpeed, amongst the entire added advantages we’ve already lined. That is your first style of the subsequent era of GrimmSpeed Exhaust Merchandise with a large number of thrilling choices to come back! 


  • GESI Catalytic Converter – Comes as same old in all V2 J-Pipes
  • 304 Stainless Metal Building – The usage of the BEST fabrics within the business
  • Thick 1/2″ Flanges – Added sturdiness and longevity
  • Solid Metal Creditors – Extraordinarily robust with low restriction for optimized circulation
  • 2-Piece Design – Makes for a lot more uncomplicated solo set up
  • Same old third 02 Bung – Permits for not obligatory use of o.e.m sensors
  • Grounding Strap Mount – Keeps all manufacturing facility capability 
  • Customized Stainless Turbo Studs Integrated – Replaces cross-thread vulnerable OEM variations
  • Gaskets and {Hardware} Integrated – The whole lot you wish to have for a very easy set up (would require 3″-to-OEM Exhaust Adapter to run on manufacturing facility catback)


  • GrimmSpeed Model 2 GESI-Catted J-Pipe – Subaru WRX 15-21 – 113009 – (MSRP $999)
  • GrimmSpeed  V2 J-Pipe Warmth Defend – Fitment for V2 J-Pipe ONLY – 092009 – (MSRP $59)