Timmy_Jones
Well-Known Member
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- #1
A few disclosures and then we can get into the written review! I am a very amateur 'mechanic' who did this install in my garage with 4 jack stands, 2 jacks, small ramps. The install was straightforward, however probably took me longer than it would most of you OR if I had a lift it would be MUCH easier! I was able to grab the exhaust for below MSRP...quick google should yield a good result. I do recommend contacting Mike @Extreme Power House who is an awesome forum member and can probably get you a great price! Car is a 2023 Base model, automatic with zero tuning done to the fake engine noise (more on that below). Stock DP. MST V2 Intake. JB+
Install Again, I am someone who can handle basic work like brake pads/oil etc. so this install took me about 4 hours. If I had to do it again? Maybe 2-3 with some discoveries on the quirks of this kit! Stock removal wasn't too bad, just heavy. Use a jack to hold up the muffler and then roll it out on a creeper or cardboard box. Installing the new one was a learning experience for me. I've never even seen a V band in person! But I absolutely love how you join the pipes very loosely and then you can 'clock' them to line it up. Slip joints are easier, but the V band seems very solid once all together. The exhaust does use the stock exhaust flapper, but I am going to open it up and pull the fuse as both sides are identical so volume/tone from comfort to sport is the same. The injen instructions are spot on, except you need to really dig into the splash guards/heat shields to remove ALL the clips holding the stock motor wires. This took me about an hour to figure out as I wanted to be careful not to ruin anything. Lining everything up was only as difficult as crawling under the car! Once everything looked good I held it in place and torqued down the V bands and gave all the pipes a good wipe down!
Impressions I was quite nervous that upon startup I would be full of regret with how loud the system is, I was not at all. Cold start is maybe a bit louder than stock (50% or so) with some more buzz and resonance, but nothing crazy (I've owned a catless FRS/BRZ where cold start was downright embarrassing). As it cycled to warm idle its barely louder than stock. I flipped sport mode to check the exhaust flapper was in working order, which it is. No change in tone or volume outside the car in sport mode, probably going to open the valve and pull the fuse for this. Car is very pleasant in comfort mode! Its quite a deep noise, louder than stock with just barely a touch of drone around 2k RPMs. Still recovering from 12+ inches of snow and wet roads here, so no WOT pulls yet. Sport mode is a different story and I need to caveat this by saying I need to disable the fake engine noise. In sport mode there is a lot of drone and buzz in the car, I don't think a 'loud' exhaust plays well with the fake engine noise so I am going to code that out in the next few days and revise this. The OEM pops and bangs are more like booms and burbles now! Much better sounding to the ear. There is a bit of drone now, again I am going to attribute that to the fake engine noise via the speakers.
TL DR - Injen exhaust fits great, looks great, nice bump in volume from stock with a very deep tone. Would I buy it again? Maybe. I do feel like this might be the Poormans Magnaflow which is alright with me! Still sad that a company screwed up my order for the AA Catback as that's the only other system I would want to compare this to. Anyone in the NH area want to get together in the spring and compare setups?
*reserved for edits here*
Install Again, I am someone who can handle basic work like brake pads/oil etc. so this install took me about 4 hours. If I had to do it again? Maybe 2-3 with some discoveries on the quirks of this kit! Stock removal wasn't too bad, just heavy. Use a jack to hold up the muffler and then roll it out on a creeper or cardboard box. Installing the new one was a learning experience for me. I've never even seen a V band in person! But I absolutely love how you join the pipes very loosely and then you can 'clock' them to line it up. Slip joints are easier, but the V band seems very solid once all together. The exhaust does use the stock exhaust flapper, but I am going to open it up and pull the fuse as both sides are identical so volume/tone from comfort to sport is the same. The injen instructions are spot on, except you need to really dig into the splash guards/heat shields to remove ALL the clips holding the stock motor wires. This took me about an hour to figure out as I wanted to be careful not to ruin anything. Lining everything up was only as difficult as crawling under the car! Once everything looked good I held it in place and torqued down the V bands and gave all the pipes a good wipe down!
Impressions I was quite nervous that upon startup I would be full of regret with how loud the system is, I was not at all. Cold start is maybe a bit louder than stock (50% or so) with some more buzz and resonance, but nothing crazy (I've owned a catless FRS/BRZ where cold start was downright embarrassing). As it cycled to warm idle its barely louder than stock. I flipped sport mode to check the exhaust flapper was in working order, which it is. No change in tone or volume outside the car in sport mode, probably going to open the valve and pull the fuse for this. Car is very pleasant in comfort mode! Its quite a deep noise, louder than stock with just barely a touch of drone around 2k RPMs. Still recovering from 12+ inches of snow and wet roads here, so no WOT pulls yet. Sport mode is a different story and I need to caveat this by saying I need to disable the fake engine noise. In sport mode there is a lot of drone and buzz in the car, I don't think a 'loud' exhaust plays well with the fake engine noise so I am going to code that out in the next few days and revise this. The OEM pops and bangs are more like booms and burbles now! Much better sounding to the ear. There is a bit of drone now, again I am going to attribute that to the fake engine noise via the speakers.
TL DR - Injen exhaust fits great, looks great, nice bump in volume from stock with a very deep tone. Would I buy it again? Maybe. I do feel like this might be the Poormans Magnaflow which is alright with me! Still sad that a company screwed up my order for the AA Catback as that's the only other system I would want to compare this to. Anyone in the NH area want to get together in the spring and compare setups?
*reserved for edits here*
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