MagnaFlow Performance Exhaust System 19544: Cat-Back, Overland Series, For 2010-2023 Lexus GX460, For 2003-2009 Lexus GX470, For 2003-2009 Toyota 4Runner, Single Passenger Side Rear Exit Style

Very nice build quality. Went together very nicely. No fitment issues, no trouble with factory hitch. Has a nice rumble on start up. Very mellow idle tone, but it’s a bit too loud during light acceleration. You hear it in the cabin unless you’re at 0% throttle which I’d prefer you didn’t for putting through town at low speed. You will hear it constantly at highway speeds, no drone or irritating tones. You definitely need to buy a factory gasket and a new set of bolts for the catalytic converter connection.

I paired this with a high performance air filter and I can 100% feel the difference in my throttle response. The GX stock feels like it can’t breathe. This combo creates a much more linear power curve and no delay in throttle response. Sounds great. A little loud at times, but it’s a performance exhaust so that is expected. There was a rattling noise when I first installed it. We tightened the clamps after about 2 weeks (500 miles) and I haven’t heard the noise since.

Some of the hanger welds were defective and had to be re-welded. Also exit pipe did not come out at factory location like the other aftermarket pipes did.

I love the exhaust but have to give it 4/5 stars. The packaging was great but the exhaust exit was slightly bent. I already was installing it when I noticed so I didn’t bother getting a new one. Other than that, great sounding exhaust.

Factory tip fell off years ago, fine just replace it. After muffler piping though, gotta replace it now. Easy to install, plus added hidden effect and lil aggressiveness in the sound. Worth the purchase

Installation was a breeze. Make sure you lube up the exhaust hangers to remove old and install new pipes. Fyi you may have to do a little custom bending on the last tailpipe piece to clear the axle and not rub the frame.

is to loud, for long trips is not good at all

It's a very loud system when combined with a Doug Thorley long tube header and Y pipe setup. Lots of drone on the highway from 1900 and beyond RPM. I will be replacing the muffler.