Which slip on

stoner1 · Feb 14, 2016

Hi, I have decided to put a slip on muffler on my 2015 Tuono V4R (1000cc model) and I have narrowed the choice down to either the Mivv GP Steel Black Exhaust MIVV Aprilia Tuono V4 10 14 GP Steel Black A008LXB | eBay or the Arrow GP2 Dark 71009GPI Exhaust Muffler Arrow GP2 Stainless Steel Dark Aprilia RSV4 '09 13 | eBay. I need some help trying to decide between the two because if I go with the Arrow (which is my preference for looks, just) I will have to purchase the Race Tuner or map my ECU. If I go for the Mivv I can buy it loaded with a catalytic converter & DB killer and leave the ECU standard. My questions are - 1. Can anyone tell me what the Mivv sounds like with the CC & DB killer in place ? 2. Will it still be louder than standard with the CC & DB killer ? I hope so ! 3. Can I expect the bike to run well with the Mivv & standard ECU ?

Dave V4 · Feb 14, 2016

hello and welcome to this forum, when I put a Scorpian can on mine it created a flat spot in the midrange, never tried it without a db killer in and I think it would be worse still due to the better breathing. for this reason I have sent my ecu off to Gabro for remapping. The Scorpian can(according to manufacturers web site) does not need a race map but imo it ran pretty ****. From what I have read on the web( so it must be real eh?) the finish on the Mivv pipes is not the greatest, if I hadn't got the Scorpian can off a member here I would have bought a GP2 as they look awesome, but with hindsight I would allow to get the race ecu or send your ecu to gab for tuning.
PS;
Any photos lol

stoner1 · Feb 14, 2016

Thanks for the welcome & the info Dave. I am surprised to hear you say that the finish on the Mivv pipes is not that good ? Can you elaborate about what you mean because most things I have read about the Mivv say that they are a quality made exhaust. I'm not arguing with you but I am interested in why you have that opinion. I live in Australia and my bike is still under warranty so sending the ECU to Gabro is not an option but I can get the Race ECU here for $485 AU which isn't too bad.

Dave V4 · Feb 15, 2016

I read a few responses on various forums about quality and customer services, also one report of a bracket breaking but that was not on a Tuono so shouldn't be a problem. End of the day you pay your money and take the chance, I prefer the gp2 can but it's not my bike it's being fitted to.

bash62 · Feb 15, 2016

had a motogp stubby way too loud ..run this now ..runs perfect just bolt it on and a steal at just over 200 quid
cheers
bash

shotgun · Feb 15, 2016

I ran a Mivv GP on my v4 for a while and its not a bad exhaust , sounded good .
Now ive got an Arrow race tech on and the Arrow is by far the better exhaust , more midrange , better built .... too loud with baffle out for me so i cut down the baffle until i got it just right ....
Just my opinion though .

stoner1 · Feb 15, 2016

bash62 said:
View attachment 3653had a motogp stubby way too loud ..run this now ..runs perfect just bolt it on and a steal at just over 200 quid
cheers
bash

Thanks Bash, it is one of the slip on's I was considering because I like the way it mounts without using the pillion bracket. What do you think of the sound & are you running it with the DB killer & the Race ECU or race map ? I am a bit concerned about running a slip on without the race map because my bike is still under warranty. Also, I noticed a small bracket where the muffler mounts and wondered if this can move vertically in time with vibration etc, or is something locking it into place ?

stoner1 · Feb 15, 2016

shotgun said:
I ran a Mivv GP on my v4 for a while and its not a bad exhaust , sounded good .
Now ive got an Arrow race tech on and the Arrow is by far the better exhaust , more midrange , better built .... too loud with baffle out for me so i cut down the baffle until i got it just right ....
Just my opinion though .

Thanks shotgun but I am looking for a smaller slip on than the Race Tech.

bash62 · Feb 16, 2016

runs perfect on standard ecu and run without any baffles..sounds superb not too loud

stoner1 · Feb 16, 2016

Thanks Bash, what do you think of all the talk regarding having to run a race map because the Tuono runs very lean from the factory. My concern is that the bike may run well short term but do damage long term ? Do you get any popping through the exhaust when you back off ? What year is your bike ?

Augustia · Apr 16, 2016

If you haven't already bought the slip on, have a look at Austin Racing. Looks and sounds the business!

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