AG6

I am looking for long term opinions of the Alpha exhaust for our car. For someone who's had it for a while, do you wish you had another system? Is it too loud for daily driving?

iownedu

I don't have it, but sure am not a fan of the single tip with our bumper design.

10speed

The muffler stays behind the existing exhaust tip just like stock muffler

AG6

This is for the facelift e63 don't see the tips

iownedu

Oh I guess I've never really looked, are you saying on my facelift the tips are attached to the rear bumper and not to the actual exhaust?

CarHopper

Do the facelift OEM tips (pre fake tips) end as normal circular pipes? Or are they oval/not round in shape?

izzy63

correct unless urs is a non s

10speed

I'm pretty sure there round but there is two smaller pipes aiming into the tips vs one large

10speed

The tips on the s model vs non s model ,the dimensions are exactly the same and they connect to the rear bumper the same the non s model has a gap between the tip (more traditional amg style) where the s model it a molded tip

raudiace4

All facelifts have tips that are intergrated into the bumper. They are not attached to the exhaust, if you look closely you can see the real tips inside.

AMS is overpriced, and it is not loud.

Go to any reputable muffler shop have them fabricate you a custom SS straight piped exhaust for much, much less. Or just replace the resonators in the rear with straight pipes for even less than that if you don't want something too loud.

shardul

iTrader: (1)

Why don't you spend the money on down pipes and get so HP benefits also in addition to sound

AG6

Does removing the resonator just introduce sound inside cabin making it seem louder but not any louder at the tips?

AG6

How much HP can DP add vs a catback system?

CarHopper

The problem with the E cabin is that it is quite well insulated, so the exhaust is in fact much louder than what your ears are telling you. Also, removing the resonator will make the car louder at the tips and in the cabin. If it is louder in one place it is louder in both.

DP's will do much more than catbacks. The problem is that to get the most out of DP's you should go catless, but going catless can lead to inspection issues and sometimes people will complain of the smell of gas. So unless you're willing to make those sacrifices then really your best bet would be to just stick with running a set of straight pipes in place of your resonator and calling it a day.

For the price, and the gains, catted downpipes really aren't worth it. I've also seen plenty of areas where owners aren't getting the gains they would've like to see out of catless DP's.

If you're like me, and want a little extra pep but wait to maintain those DD qualities and not have any headaches, the extent of "performance" modifications should look something like a tune and resonator delete on this car.

The advantage to the AMS catback comes in when you really have to open things up and have gone down the big turbo path or something like that. Otherwise you're kind of just throwing money away for nothing.

shardul

iTrader: (1)

To be honest I dont think a cat back system add any significant power (correct me if I am wrong)

On the other hand turbo back downpipes are always coupled with a ECU calibration. Lot of numbers are posted bu the tuners.

raudiace4

DPs are the way to go if you're looking for more power/tq and sound. Catbacks will add negligible power if any at all, mostly for sound.

Removing the resonator will definitely be louder inside and outside, but much more outside bc the cabin is really well insulated. Much more turbo spool and crackling sounds on downshifts. Even more so if you have downpipes with res delete.

AG6

I guess the next question: What are some good quality DP?

I have speed driven and AMS close to me

shardul

iTrader: (1)

Both are pretty good. It just boils down to who you can communicate with better and price also.
Since you have a AWD car I would not recommend turbo back down pipes. I would get the cat less ones.

10speed

What's the best way to go for exhaust with no tune or Renntech tune , I don't want to remove my stock DP's ,I still want it comfortable not crazy loud but I love the crackles
Resonator delete?
Renntech mufflers?
Renntech muffler with resonator delete ?

shardul

iTrader: (1)

resonator in place and muffler delete

jrosa

I was planning to add Alpha downpipes, but I'm afraid that the car will get too loud outside, and I definitively do not want it. Does anyone know how loud the car will get if I change the downpipes (cattless) and keep the OEM exhaust system?

shardul

iTrader: (1)

It will be a loud on cold start and on load

Other than that it will not be obnoxious

Amg63-

Does removing the stock resonators and replacing with straight pipes add any power or is that purely just for sound?

On stock downpipes with cats in place.

shardul

iTrader: (1)

Only sound

raudiace4

just more sound.

If you had catless dps, then res delete that might get you more power with less restriction after the dps.