[speeddeacon]

Originally Posted by G80SWFL

go watch a youtube video of IRL modular V2 midpipe with stock axle back and stock downpipe sounds deep and no rasp

Yep, along with the full modular catback, that's on my short list of possibilities at the moment. Also the MAD Fat Boy and Millitek.

[STOLENG82]

Just spoke with the owner of IRL the 4” modular single catback will be back once the valve rattle on cold start is fixed. He said they’re buying new valves that cost $875 and will send new valve and cover the cost to fix the cold start rattle for old customers. Not cheap, great company and owner

[speeddeacon]

Originally Posted by STOLENG82

Just spoke with the owner of IRL the 4” modular single catback will be back once the valve rattle on cold start is fixed. He said they’re buying new valves that cost $875 and will send new valve and cover the cost to fix the cold start rattle for old customers. Not cheap, great company and owner

That’s impressive customer service!

[G80SWFL]

Originally Posted by STOLENG82

Just spoke with the owner of IRL the 4” modular single catback will be back once the valve rattle on cold start is fixed. He said they’re buying new valves that cost $875 and will send new valve and cover the cost to fix the cold start rattle for old customers. Not cheap, great company and owner

with the 4" fixed which one has a better sound the 3.5 or 4?

[STOLENG82]

Originally Posted by G80SWFL

with the 4" fixed which one has a better sound the 3.5 or 4?

I like the 4 it’s deeper

Just installed 4” modular today ill upload vids and post them

[G80SWFL]

Originally Posted by STOLENG82

I like the 4 it’s deeper

Just installed 4” modular today ill upload vids and post them

OEM DP?
Drone?

[STOLENG82]

Originally Posted by G80SWFL

with the 4" fixed which one has a better sound the 3.5 or 4?

IRL 4” Modular Catback IRL Catless Downpipes

[STOLENG82]

Originally Posted by G80SWFL

OEM DP?
Drone?

Catless no drone closed or open. Hit 120 on highway multiple times on accident with valves closed because it’s silent

[STOLENG82]

IRL 4” Modular Catback

[NWill13]

Any rattle from the valves with valves closed on cold start? I notice some rattle from mine with valves closed, but nothing on open

[STOLENG82]

Originally Posted by NWill13

Any rattle from the valves with valves closed on cold start? I notice some rattle from mine with valves closed, but nothing on open

Yes that’s the issue they’re working on finishing

[TopJimmy]

The IRL and RVNG are just variations of the AA Signature Exhaust System for F8X/S55. I had it on my F80-82 and loved the deep-deep sound. The downside is the exhaust exits one set of tips or the other depending on valve open/closed. For the second/missing actuator you use an OEM resistor-plug to avoid a code, or ignore as it doesn’t cause a CEL. Mine did get a rattle after a while but I opened up the spring clip a little and the extra tension stopped the noise.

[STOLENG82]

Originally Posted by TopJimmy

The IRL and RVNG are just variations of the AA Signature Exhaust System for F8X/S55. I had it on my F80-82 and loved the deep-deep sound. The downside is the exhaust exits one set of tips or the other depending on valve open/closed. For the second/missing actuator you use an OEM resistor-plug to avoid a code, or ignore as it doesn’t cause a CEL. Mine did get a rattle after a while but I opened up the spring clip a little and the extra tension stopped the noise.

I don’t think it’s that simple. The way he explained it the valve rattles on the 4” because of the velocity of the exhaust hitting it. It’s not an issue on the 3.5” because it doesn’t flow as fast as the 4” does. They both used the same valve, now the 4” needs an upgraded valve to not rattle