Ok, will try it again soon with the decat. The car did feel really fast when I first did all the mods and had the decat fitted.
Mach5 downpipe and SS exhaust review
- Thread starter Milk242
- Start date
my K20/24 Elise had decat and straight pipe, damn that thing was crazy and STINKY lol - only reason I am haven't put decat on the Emira
That sounds great, looking forward to meeting up and hearing it in person!!Wait until you do a de-cat for the i4!
Im thinking of going the Mach 5 downpipe with milltek valve controller. From what I've read this is going to impact the sounds the most. Im not looking for straight pipe as too loud for me and I want to retain ability to change valves to OE when parking at home. Was wondering if anyone has a video or sound clip or the downpipe and valve controller (fully open) combo?
Would love to hear this combo also!
- Thread starter
- #86
I have mach5 downpipe and valve controller with mach5 exhaust muffler (not the straight pipe one) that I can try to record on my iPhone
Would love to hear what the i4 sounds like with this particular exhaust and downpipe
Hi Kaz! Wanting to go your route and was wondering if the Aerie sports cat/downpipe you're running in conjunction with the Mach 5 exhaust is what Aerie has listed as their 'front pipe' here? https://aerieperformance.com/produc...orts-catalyst-front-pipe-by-aerie-performance
TIA!
That is exactly what I got...replied to DM with more info
This is exact setup im thinking right now so would appreciate some clips
I've got this setup and would highly recommend. I've tried to take a couple vids but it doesn't capture it very well. Sounds way better in person
When trying to record, I had to set my phone to the direct side of the car when stationary to capture it correctly. Maybe try that.
Any CELs from the Mach 5 downpipe at all? I was DMing with Kaz and was originally going to get the Aerie downpipe + Mach 5 race exhaust like he has, but changed my mind last minute and went with the Mach 5 downpipe + Mach 5 race exhaust instead...hoping I made the right choice lol. Seems from this thread that @Milk242 did not have any downpipe related CELs from his but wasn't sure what others' experiences were.
No CELS as yet for me with the valved mach 5 system with catted downpipe. Fingers crossed
Awesome, thank you and that's good to hear! I'll certainly be adding my experience as a data point hopefully in the next week or two.
So far my experience communicating with Mach 5 has been really smooth, initially I was dreading using WeChat since they have a verification process now (and i'd never used it before) so I just relied on email and Mach 5 got back to me the very next day with an invoice...paid for it this morning via PayPal, sent them a screenshot of the payment confirmation and 3 hours later they responded that they would be shipping tomorrow. Fingers crossed on my end as well lol!
So my Mach 5 parts came last week...took about 4 business days from Shenzhen to Cali via UPS Worldwide Express. Box is a little worse for wear but all the goods are intact/undamaged. Only thing I noticed were the bolts missing for the valve controller relocation kit, but these are just A2-70s so no biggie.
More specifically I got the newer Mach 5 "Race Spec" Catback (straight-through) exhaust and their downpipe. They only technically have one downpipe on their website ("Heatshield Downpipe") and it is advertised as a 300 Cell high flow config, but I also specified wanting 300 Cell in my emails back and forth with them (I think early downpipes may have been 200 Cell and they do advertise on the site that you can request lower/completely catless, but I mean let's be honest these may as well be lol).
I know from this thread and a couple others that a few people have the Aerie downpipe + Mach 5 straight through catback as well as the Mach 5 downpipe + Mach 5 non-straight through catback, but don't know if anyone actually has the Mach 5 dp + Mach 5 straight-through combo, so hopefully my experience will be a good data point soon.
I've DM'd a few folks on here with the Mach 5 dp and no one has gotten a dp-related CEL from it, so i'm knocking on wood and hoping for the same with the combo I got (i'm assuming I will get one though at some point that either a tune will fix down the road and if not I got a favorite picture of my dogs ready to be plastered on the dash lol). I know other platforms have those go-to manufacturers that advertise "no CEL guaranteed" downpipes and can hit it better than 9 out of 10 cars, and while Mach 5 doesn't strictly go around advertising that (even though it is mentioned on their website "track proven CEL-free performance" or something) it's very possible they can be that name for the Emira (and based on what's been said here on the forums about many Chinese Emira owners of the Mach 5 dp not having CEL issues they probably already are considered that over there). But Kaz has told me to expect the CELs and it makes sense lol.
The renowned TrackSpec Autosports in Fremont, CA will be doing the install work (also having them snip the wire for the fake engine noise since this is a perfect time to do it) but they're unsurprisingly booked out for the next couple weeks so i'll check back in early July after my appointment and probably make a new thread with this Mach 5 combo to share my experience....i'm extremely lucky to be living only 20 minutes away from these guys!
More specifically I got the newer Mach 5 "Race Spec" Catback (straight-through) exhaust and their downpipe. They only technically have one downpipe on their website ("Heatshield Downpipe") and it is advertised as a 300 Cell high flow config, but I also specified wanting 300 Cell in my emails back and forth with them (I think early downpipes may have been 200 Cell and they do advertise on the site that you can request lower/completely catless, but I mean let's be honest these may as well be lol).
I know from this thread and a couple others that a few people have the Aerie downpipe + Mach 5 straight through catback as well as the Mach 5 downpipe + Mach 5 non-straight through catback, but don't know if anyone actually has the Mach 5 dp + Mach 5 straight-through combo, so hopefully my experience will be a good data point soon.
I've DM'd a few folks on here with the Mach 5 dp and no one has gotten a dp-related CEL from it, so i'm knocking on wood and hoping for the same with the combo I got (i'm assuming I will get one though at some point that either a tune will fix down the road and if not I got a favorite picture of my dogs ready to be plastered on the dash lol). I know other platforms have those go-to manufacturers that advertise "no CEL guaranteed" downpipes and can hit it better than 9 out of 10 cars, and while Mach 5 doesn't strictly go around advertising that (even though it is mentioned on their website "track proven CEL-free performance" or something) it's very possible they can be that name for the Emira (and based on what's been said here on the forums about many Chinese Emira owners of the Mach 5 dp not having CEL issues they probably already are considered that over there). But Kaz has told me to expect the CELs and it makes sense lol.
The renowned TrackSpec Autosports in Fremont, CA will be doing the install work (also having them snip the wire for the fake engine noise since this is a perfect time to do it) but they're unsurprisingly booked out for the next couple weeks so i'll check back in early July after my appointment and probably make a new thread with this Mach 5 combo to share my experience....i'm extremely lucky to be living only 20 minutes away from these guys!
- Thread starter
- #97
I have 4000 miles now on my setup, no CEL reported from my obd2 scanner and haven’t seen a check engine light. Only one was from when my valve controller blew a fuse. Replaced fuse and switched my mach5 valve controller for milltek v2 and been error free since.
I do rarely get boost sensor related errors, but that’s probably from my jb4.
I do rarely get boost sensor related errors, but that’s probably from my jb4.
Yup you were definitely a no-CEL data point for me with the Mach 5 dp lol. Originally I was inclined to go for the Aerie dp (cheaper) but the convenience of ordering both the dp and exhaust from one place + the feedback from other Mach 5 owners was my last minute deciding factor.
- Thread starter
- #100
I expect they would all sound fairly similar since they are all 300 cell cats
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