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After Hurricane Irma came through, we had no power so I decided to go back to muffler shop to have stock ones put back on. When I got there, the guy told me of some RC mufflers he removed for a guy and he still had them. Now I remember hearing the RC with the V8 and this might be a good option!!
Installed and is exactly what I was looking for!! Clip below. Let me know what you think!!
nice sound outside and in. You can hear the low tones in the exhaust but it is not overwhelming. Wife loves it and that is a winner in my book!
That sounds Good!
I like how it's just a little bit louder, but quite a bit deeper in tone. It sounds more muscular, but not out of place on a Lexus luxury car. I'll bet that it sounds even better with some load on her, while rolling down the road.
I like how it's just a little bit louder, but quite a bit deeper in tone. It sounds more muscular, but not out of place on a Lexus luxury car. I'll bet that it sounds even better with some load on her, while rolling down the road.
Nice job!
That is EXACTLY the sound of the Exhaust Vents. Your description is EXACTLY what I was after, and that's the best description I have read yet. Again, it's kind of like the G35, and FX35. Those have a sound, they can be heard, but they are not loud. I wanted the Exhaust Vents to be like that, but with a more authoritative sound from the V8. And that's what I got. And the beauty is, if 1 set of Exhaust Vents are not authoritative enough, they can be stacked, while still being the least expensive option out there, with quick / easy / no cost / 100% reversibility.
After months with a slightly bassy/boomy Magnaflow 2.25” axle back and a half assed grin on my face. I decided to take the plunge and have a custom cat back built. Now old heads who like quiet LS’s read no more... This is my 3rd custom cat back on my newest LS. It’s a V8 thing...
Months of reading ISF/GSF/RCF threads lead me to have this set up built. Seeing the HP/TQ gains on a cat back from the 5L 2UR I believed the 4.6L 1UR was very capable of at least 75% of those. That aside I wanted something more audible and exotic sounding to go with the F direct shift transmission. I redline almost daily thats how I enjoy my car. The rev match downshifts are night and day now and seem/sound faster. A cat back on the F motor can gain 20-30+ WHP easy. Double that with headers. From my *** dyno it feels like I’m driving a different car. The needle climbs the tach faster and wants to slam into redline making me wish the 460s had the same redline/shift point reminder as the ISF. IMO a set up like this on a LS460 easily gains 30+HP at the crank, yes I’ll claim that. With the TOMS Racing filters and F Sport sound generator a few more.
LS460 and ISF’s come from the factory with 60mm(2.4”) exhaust after the primary catalytic/cat converter. The GSF/RCF bumped the diameter up to 65mm(2.6”). While most aftermarket systems delete the secondary cats and add their own X pipe, a few like Apexi N1-X utilize an H pipe. I decided to do the same since it the OEM system has one. The entire factory H section is hollow BTW. The secondary’s have typical restriction. It seems most people on CL remove factory resonators for sound I decided to incorporate them. I wasn’t sure about 60mm 304 stainless availability and accepted the fact that 2.25(57.2mm) pipe would be sufficient and flow better than what was there. Almost all aftermarket systems for the ‘F’ motor use 2.5” pipe. My original 2.25” axle back section was only modified to accept a pair of polished Black Widow Venom 250 mufflers on custom hidden stainless hangers.
How does it sound? Crazy, mad, angry when you step on it. Cold starts sound awesome. It crackles and pops sometimes. The sound it makes in the mid range is addicting.
How is cruising on the highway? DRONE. It’s a V8 thing... lol. In 8th gear anywhere between 1500-1900rpm is pretty bad especially under load. Anything over 10% throttle on hills is intrusive. On the flip side when it’s level or down hill slightly the exhaust is pretty damn quiet. Cruising in the city isn’t that bad until you reach the bottom of a hill. I took a risk with these mufflers because they suggest a tail pipe for drone to be reduced. With packaging issues on our cars I didn’t run any.
I’ve done lots of reading on side branch resonators/ 1/4 wave resonators/ j pipes/ Helmholtz resonators which have been used with much success in other forums. The science behind it is pretty interesting. I know what I want so I’m just waiting for another appointment to get more TIG welds...
I have gone through a series of different setups myself.
First...muffler chop, then resonators and secondary cats chop including the center x/h section, then put the secondary cats back on without the center x/h section, then Borla Stingers...in that order. So far I am happiest with the current setup but, I am getting the drone as you said 1500-2000 RPM, otherwise it sounds mean AF! I think I will install an X pipe and see where that puts me. Then I will consider going to a j-pipe setup.
When secondary’s are removed theres usually drone associated. Same with the stock chambered muffler. Probably why many JDM brands run loop systems in the axle back. I’m sure that extra 3 feet of tail pipe with two u bends cancel out some drone. With the J pipe I’m looking to go with 28” of 1.75 diameter. There are some sound clips on my IG. When changing the mid pipe, you can really feel like your sitting behind a V8.
When secondary’s are removed theres usually drone associated. Same with the stock chambered muffler. Probably why many JDM brands run loop systems in the axle back. I’m sure that extra 3 feet of tail pipe with two u bends cancel out some drone. With the J pipe I’m looking to go with 28” of 1.75 diameter. There are some sound clips on my IG. When changing the mid pipe, you can really feel like your sitting behind a V8.
Yeah I chopped the mufflers and experience the drone as well. Oliver warned me but I didn't listen LOL. The 1500 rpm drone was cool at first then becomes a little annoying after a while. I was warned.
I can hear no sound. Might be a problem on my end.
