Hi-Flow Cats & stock muffler
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Senior Member
Joined: Feb 2003
Posts: 231
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From: Hollywood, FL
Hi-Flow Cats & stock muffler
Ok, I'm reaching out to all the "Guru's" out there. I know the Long tubes are sweet, but since it is known that the stock muffler is a good piece from the factory, why not put an X pipe before that and install a set of single hi-flow cats on the down tubes. Or is it that the stock manifolds are very restrictive as well? I don't plan on running the Juice or upping my pulley to 8# or a blower change. You know $1,700 for an exhaust isn't cheap. So I'd like to maximize my $$$.
JBA Shorties, X-Pipe Bassani with Cats and stock mufflers? Or just the X-Pipe Bassani with Cats?
Make me smart. Otherwise I'll just buy the whole system and know it does the job.
JBA Shorties, X-Pipe Bassani with Cats and stock mufflers? Or just the X-Pipe Bassani with Cats?
Make me smart. Otherwise I'll just buy the whole system and know it does the job.
Senior Member
Joined: Apr 2002
Posts: 5,298
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From: here
1) Shorty headers won't give you much power. Not worth it.
2) Our stock manifolds are restrictive.
3) Hi-flo cats would free up some horsepower. I've heard some good things about the Carsound units. I think Flying **** reported some significant increases in rwhp and rwtorque but I don't want to speak for him. Maybe he will chime in.
4) If you're just after power alone, I don't see a catback being a very cost-effective way to get it. The hi-flos are supposed to give you some power and are cheaper than a Bassani or Silver Bullet catback. However, I haven't the #s that hi-flos alone put out with an otherwise stock setup.
My advice is to look towards other ways to gain power. I don't know your mods but I would recommend other things on top of a chip/pulley/filter combo like an e-fan, etc. As for the full-meal-deal 1700+ setup, I'd save my pennies and tackle the exhaust when I'm good and ready with enough mods to be able to squeeze out decent power from a less-restrictive exhaust.
My ultimate goal for exhaust would be some JDM step headers, 3 inch midpipe, and a catback of my choice. No cats.
Hope this helps.
2) Our stock manifolds are restrictive.
3) Hi-flo cats would free up some horsepower. I've heard some good things about the Carsound units. I think Flying **** reported some significant increases in rwhp and rwtorque but I don't want to speak for him. Maybe he will chime in.
4) If you're just after power alone, I don't see a catback being a very cost-effective way to get it. The hi-flos are supposed to give you some power and are cheaper than a Bassani or Silver Bullet catback. However, I haven't the #s that hi-flos alone put out with an otherwise stock setup.
My advice is to look towards other ways to gain power. I don't know your mods but I would recommend other things on top of a chip/pulley/filter combo like an e-fan, etc. As for the full-meal-deal 1700+ setup, I'd save my pennies and tackle the exhaust when I'm good and ready with enough mods to be able to squeeze out decent power from a less-restrictive exhaust.
My ultimate goal for exhaust would be some JDM step headers, 3 inch midpipe, and a catback of my choice. No cats.
Hope this helps.
Thread Starter
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Senior Member
Joined: Feb 2003
Posts: 231
Likes: 0
From: Hollywood, FL
All I have is a 6#, Chip, filter/intake, single-blade & valve body. On ET's it ran 12.7 @ 107+. I didn't pull the spare and tailgate. The truck had good MPH considering I was hot lapping. I know the electric fan and water pump help as well. I guess when you get into the 12's it's real tough to get into the low 12's without spending mucho $$$. All I can do now is the exhaust and converter. All I want is low, low 12's.