I was debating an x-pipe muffler in place of the non-resonated x-pipe, on my Borla Atak catback, but the axleback already does an okay job. I ended up swapping the axleback out for a Borla S-Type axleback, and it’s a whole 25-35% quieter. Obviously, if you’re catless, it’s not going to be the ultimate fix for loudness and rasp, but it will be the first big step IMO. I also debated on modifying my exhaust to the point of taking out that center brace plate, towards the further half of the mid pipes, heading towards the piping going to the rear mufflers. Not that it does a whole lot, but… I also debated on a 3” inch exhaust, and I might go with this, as it makes my high flow cat choices a lot easier. I will probably need to get 2.5-3” reducers/adapters and clamps, when I throw back on my stock exhaust manifolds/downpipes for emissions….
I’m gonna get a 2nd x-pipe welded into my Borla S-Type catback. I’ll probably have it welded a bit before the center brace plate, as I want to keep that in and have enough clearance. I would go with the Magnaflow x-pipe muffler or some other fiberglass packed dual inlet/oulet muffler, mainly if I had a muffler delete or small mufflers/resonators in the rear (mid muffler doing it’s job). However, keep in mind that adding more down the mid pipe, you probably WON’T be able to keep that center chassis brace plate. Some companies like BMR or Ultra Racing, sell custom ones, but they’re pricey and sometimes not worth keeping. From what I know, adding a second x-pipe can deepen the overall exhaust sound, kill some rasp, and reduce even more back pressure.
I was debating an x-pipe muffler in place of the non-resonated x-pipe, on my Borla Atak catback, but the axleback already does an okay job.
I ended up swapping the axleback out for a Borla S-Type axleback, and it’s a whole 25-35% quieter.
Obviously, if you’re catless, it’s not going to be the ultimate fix for loudness and rasp, but it will be the first big step IMO.
I also debated on modifying my exhaust to the point of taking out that center brace plate, towards the further half of the mid pipes, heading towards the piping going to the rear mufflers. Not that it does a whole lot, but… I also debated on a 3” inch exhaust, and I might go with this, as it makes my high flow cat choices a lot easier. I will probably need to get 2.5-3” reducers/adapters and clamps, when I throw back on my stock exhaust manifolds/downpipes for emissions….
do you not have a cold start video
I’m gonna get a 2nd x-pipe welded into my Borla S-Type catback. I’ll probably have it welded a bit before the center brace plate, as I want to keep that in and have enough clearance.
I would go with the Magnaflow x-pipe muffler or some other fiberglass packed dual inlet/oulet muffler, mainly if I had a muffler delete or small mufflers/resonators in the rear (mid muffler doing it’s job).
However, keep in mind that adding more down the mid pipe, you probably WON’T be able to keep that center chassis brace plate. Some companies like BMR or Ultra Racing, sell custom ones, but they’re pricey and sometimes not worth keeping.
From what I know, adding a second x-pipe can deepen the overall exhaust sound, kill some rasp, and reduce even more back pressure.
p̾r̾o̾m̾o̾s̾m̾ 😪