GX460PREM

Hi
I'm NEW @ ClubLexus.
I seen some photos posted by "Tecman" on his quad exhaust modification. Just want to find out if the modification produce any additional horsepower or loud muffler/ tail pipe sound?

Here's my idea...
Want to keep the spare tire, OEM muffler in place.
Going to use a Y pipe to connect the tail pipe to the left side and use an additional OEM muffler. Then attach dual tips to the end of both mufflers.

Will this idea worked with the limited space underneath the vehicle?

NickTee

A muffler/axle-back is not going to make a noticeable power difference, whether you leave it stock or add a y-pipe with an additional muffler.