ITSTHESHOES

Purchased the Renntech HHT should be arriving on Tuesday. Was browsing around and seen they had an “ecu tune” and an “ecu+ tune”

When I spoke to a renntech employee they said they didn’t offer any “stage” tunes.

long story short I paid 2,240 vs 2,480 I would have easily paid for the + tune but didn’t see that option through website I ordered through… renntech doesn’t even offer the basic ecu tune on their store page.
Does renntech do revisions?

ecu tune
+45 hp
+162tq

ecu+ tune
+105hp
+262tq

DigitalDisaster

By any chance would the '+' tune be used in conjunction with catless downpipes?

ITSTHESHOES

On the website it doesn’t say it’s for downpipe

C2 Turbo

You can use the DP with cats but without cats the CEL be on

ITSTHESHOES

Ok so I got an update from both renntech and company I ordered HHT from… renntech rep pretty much told me I would have to return the HHT to where I bought it from… company CC me their reply and said it’s not returnable.

all I’m wanting to know is if I can pay the difference in cost for them to send me some kind of file to get the ECU+ tune. Does anyone have any insight on this?

cls5504matic

renntech seems to offer intermediary tunes.

Highline-Autos.com

Is your module VIN matched to your car? I know they have done so in the past, if so it sounds like you would need to go through the process of returning and repurchasing... it sounds kind of dumb, but think, you can't buy a CLS 400 and have Mercedes just charge your the difference to make it a 450....

ITSTHESHOES

I think all HHT is vin matched. Buuuut the issue is I haven’t even received it yet should be in today.. per renntech it is 100% unreturnable. I’m wanting to do just a simple exchange for the “full tune” tuner.

So from the looks of it is if you want a full tune coming from intermediate tune then you’d have to pay again?

RavenCLS

That makes no sense. What if you installed the tune and then added downpipes. Would they charge you for a completely new tune? No, they'd charge you less and make the adjustment. Hopefully you get this worked out, I can imagine how frustrating it is.

ITSTHESHOES

that’s exactly what I was telling myself, not my first time dealing with tuners, just my first time dealing with euro tuners. Asked renntech rep, if I could pay the difference for “full tune” all I get was contact who I got the HHT from. Mind you, the HHT was shipped from renntech florida. Went ahead and installed the tune yesterday I love it but it leaves me wanting more and I think “full tune” would have left me satisfied

RavenCLS

The + tune is probably with downpipes. Did you ask the place where you got the tune from? The tune you got makes no sense, why would they have 2 tunes that make such a drastic difference in power only $40 apart? You would think that the higher tune would be for a car that has the downpipes because that's what the numbers look like. But I'm running a Weistec tune, mine on paper is 540/720 and that was the tune that they said was for a car with cats. Mine just makes a little less power because I still have cats because I live in California.

The Renntech tune looks like the second bigger tune is for cars with downpipes. Just sucks because with Weistec you could have been making that power and not needed to use downpipes. I just have an exhaust and an intake and that's the tune I'm running.

ITSTHESHOES

from what rep said… the tune that I accidentally purchased was for states that had 91 octane only, I’m in Texas 93 is everywhere. When I called renntech the guy said there was pretty much no such thing as revisions since all they’re doing is upping the boost and messing with A/F and timing, and explained to me that the intermediate tune was for 91 and full tune was for 93… I did ask the place where I got the tune from, they reached out to renntech explaining what I wanted to do, all they said was 100% not returnable, refundable, etc.

So I’m pretty sure I’m SOL at the moment from what it sounds like

RavenCLS

And I'm sure it's tied to your VIN so you can't even sell it. I'm pissed for you!

ITSTHESHOES

Main reason why they’re declining return.. VIN locked

Adi-Benz

Yeah I'm not sure why they wouldn't let you return it if you haven't even taken it out of the box

DigitalDisaster

Well, that sucks. I have the $1,500 Weistec stage 1 tune (540/715). Should I go with catless downpipes, they charge $250 to reflash the ECU. Why can't Renntech do the same?

ITSTHESHOES

looks like they don’t believe in revisions.. buy a new tune thank you lol

cls5504matic

I am a big fan of logging bench tunes to make sure they work as expected and I do think it makes sense to modify tunes for specific use cases. I think it is important for a customer to say hey I'd like this changed or this doesn't feel great. So if it is true they can't update a tune to their HHT that would be something I'd consider versus an HPTuners or Open Port 2.0 type system.

ITSTHESHOES

Only reason why I went with renntech is I liked the ease of install with no downtime and minimum turnaround time. I’ve dealt with HPtuners, diablosport, hondata, etc. with them I could contact my tuner, they’d send me a file and I would load it onto the device and done deal.

I do see there is a USB port on the HHT, but per instructions it says not used. Makes me wonder if they could send file or whatever over to make revisions or even a “full tune” that I want.

ITSTHESHOES

UPDATE:

A rep from Renntech has actually contacted me telling me they could upgrade my HHT intermediate tune to the ECU+!!! Shipped out my HHT this morning.

RavenCLS

That's the best news I've heard all day. Happy for you man! Say goodbye to tires now lol

ITSTHESHOES

I can’t wait to say goodbye to the tires lol, bought the wheels off a bmw m5 guy and he put a 285 tire on a 10.5in wheel

DigitalDisaster

Good news - it restores my faith in them

ITSTHESHOES

Forgot to update, received the HHT with upgraded “software” I’m pretty satisfied in the upgraded power over intermediate tune!

DigitalDisaster

Yeah!