Supertrapp Catback

[4/26/2003] Reviewed by: Fred Morser

Applicable to: '90 - '97 1.6 liter

Supertrapp 18" muffler - black

I had a muffler shop install it 2 months ago. We'll see about durability. Looks good, sounds great.

Under full throttle from 3K up it is loud, with a nice snarl. You control volume by how hard you accelerate. Around the neighborhood just ease off the gas and it stays quiet enough to avoid complaints. There's a new baby next door and no comments yet and I don't expect any. I currently use six plates with no in-line resonator. I had an ANSA, a good muffler, but was too quiet for me. The ANSA would stay stock quiet for about 25 minutes until warm and then made a little noise. My commute is 30 minutes. No warmup needed with the supertrapp. On the highway it isn't that much louder than all the road and wind noise.

Under 30 minutes to remove completely

[9/14/99] Reviewed by: Jesse Lee -

Applicable to: '90 - '97 1.6 liter 1.8 liter

Stainless Steel Catback Exhaust and spare tire relocator. After a ‘re-engineering’ hiatus, this kit was available again late Jul 99. I bought it from Duetto for $339.

1.Product: Consists of a 4" disc stainless Supertrapp Muffler, cat-back 2" OD stainless pipe, spare relocator bracket, and all stainless hardware.

2.Installation: very straight forward: everything went where they were supposed to go. On the negative side, the 2 pipes + muffler were CLAMPED together, not bolted together. Also, the relocated spare tire rubs on the stock rear anti-roll bar unless deflated well down from the recommended 60psi. The muffler sticks out quite a bit. I might saw " to 1" off of the pipe where it joins the muffler (muffler is hung from a clamp-on hanger- there is plenty of room to slide back)

3.Performance: Unconscionably loud. It’s not a staccato bup bup bass neither, it’s a medium to high pitch resonance drone- buzz that sounds like a screaming headache. This was w/ 6 discs, as Moss Motors recommend. (Supertrapp recommends 6 as a minimum, Moss recommends 3) W/ 3 discs: the noise was reduced, but still way too much drone!

Finally I had a 12" resonator spliced in (this fix may or may not work for a 94+ w/ longitudinal braces) for $46. This made a huge improvement- from painfully loud to merely loud. I can drive it w/o ear plugs now (Not kidding you)

I used to run a Supertrapp on a motorcycle w/ no problems at all: this is because on a bike, you leave the noise behind. In a car, the noise stays with you! Without a resonator, the Supertrapp exhaust should be considered unuseable. *This kit is recommended only for those who really love the looks of a Supertrapp*

Over 30 minutes to remove completely

Reviewed by: Anonymous Review

An all 304 stainless tailpipe and muffler system. The tip is the muffler and done in a brushed finish with a chrome end cap. The tip is 4 inches around and when installed it stick out about 3 1/2 inches. It also comes with a tire relocation kit to mount the spare up and under bumper.

I ordered it from Moss for around 340 dollars with shipping and installed it in about an hour. It came with all the mounting gear plus a new exhaust gasket. The only thing was it didn't have any instructions. It came with 12 diffuser disks to tune how loud you want it and it hold up to 20 disks.

It went on easy but I did pick up a rattle but with some bending of the hangers it was gone. Its VERY! load with a deep tone running all 12 disks it has a racing machine roar during acceleration and it just howls at 3000 to 4000 rpms. By adding disks you get more top end power and taking them out you get better bottom end with less noise. Over all I love how it sounds and looks. Plus having more space in the trunk is great. I can feel a improvement over stock and think it was worth it.

Back to Product Reviews 16 September, 1999